Whether cultivating stakeholder relationships effectively, going the extra mile while gathering detailed business requirements for a complex project, or leading technical transition teams, working with experts opens the door to new process efficiencies and cost savings. That expertise includes not only technical expertise, but a deep understanding of the importance of mission-critical systems to government agencies and their constituents. From start to finish, Karsun team members are trusted by public sector agencies for their expertise. 

Customer Success with Karsun Cloud Experts

No where is this clearer than during our recent quarterly employee awards celebration. At that event, one Karsun team member was recognized for her work securing savings for one of our agency customers. As part of our engagement, she performed detailed analyses of 72 AWS accounts. In doing so, she identified a significant potential annual cost reduction by introducing targeted efficiency improvements and infrastructure optimizations. That includes server rightsizing, identifying idle resources, and utilizing AWS Savings Plan and Instance Scheduling. As a result, the team successfully recovered 25% in annual savings for their customer!

Partnering with Cloud Experts

This is one of many examples of our efficiency-driving approach to enterprise modernization. Karsun is an AWS Advanced Services Partner with Migration and Modernization, DevOps, and Government Competencies. To earn each of these designations, Karsun teams delivered multiple customer engagements in each category using industry best practices. These approaches create both cost savings and process efficiencies. Its software development methodology has been assessed at CMMI Level 5 multiple times. This is the highest level maturity appraisal and indicates Karsun’s commitment to using a data driven approach to improving its software practice.

Selecting a Cloud Partner

There are numerous benefits to working with cloud experts experienced in delivering modernization solutions for mission-critical systems. These are some of the best reasons to choose a partner with proven performance and expertise:

1. For complex engagements, connect with partners that have demonstrated technical proficiency and success in specific domains such as: AI/ML, Migration and Modernization, DevOps/DevSecOps, Data Modernization, DataOps, and Government. If they hold a certification like an AWS competency, they have passed a rigorous audit of their architecture, customer references, and staff certifications.
2. Certified partners bring faster time to value. In order to complete industry certifications and appraisals, systems integrators (SIs) must bring repeatable frameworks, accelerators, and automation that reduce risk and speed up delivery. For instance, Karsun’s in-house Innovation Center has teams dedicated to this goal via its Modernization Toolkits. This is especially valuable for cloud migrations (Cloud Runways) and application modernization (accelerated via the ReDuX AI-powered modernization platform and GoLean agile platform.)
3. SIs with strong technical partnerships provide alignment and co-sell support.These partners often work closely with their respective account teams. That also means they may have additional access to incentives and accelerators. For instance, Karsun’s AWS Migration and Modernization Competency provides access to Migration Acceleration Program (MAP) resources.

Public sector and mission driven leaders should choose a partner with strong expertise when modernizing a mission-critical or regulated workload or modernizing complex legacy systems (e.g., COBOL to microservices). Doing so ensures they will bring best practices, support organizations navigating funding programs or go-to-market support, and engage experts to find cost-savings and efficiency gains. Connect with our experts to learn more.

As we enter the fourth quarter of a turbulent federal technology market, our Karsun experts are adapting to meet the evolving needs and missions of our agency customers. At the same time, meeting the demand for artificial intelligence enabled tools, our Karsun Innovation Center developed ReDuX, a comprehensive, end-to-end AI-accelerated modernization platform for the entire software development lifecycle. Today, as we close out the first half of 2025, we summarize some of the insights shared by experts in our Innovation Center and from our teams serving our U.S. government partners. 

Bringing Thought Leadership to the IT Industry

Karsun thought leaders joined the AWS Mainframe Modernization Forum, the Federal Tech Podcast and other forums to share their experience with our ReDuX platform. In short, they observed, government modernization faces significant challenges from shrinking workforces and reliance on decades-old, mission-critical legacy systems which are difficult to maintain and often lack up-to-date subject matter expertise as veteran employees retire. This directly impacts federal customer experience, with only 23% of Americans finding federal services easy to navigate. 

At these events, these Karsun experts revealed their ReDuX AI-powered modernization platform offers a crucial solution by deploying a digital workforce of AI agents. These agents effectively become Subject Matter Experts (SMEs) for legacy systems, blueprinting their architecture and converting intricate code to modern cloud platforms. This approach dramatically benefits development teams by accelerating complex migrations, enhancing code quality, and reducing costs, allowing human teams to focus on strategic, high-value work. 

Ultimately, ReDuX aims to make federal services more usable, faster, and lead to more satisfied customers.

New Insights at Innovation Town Halls

In addition to our thought expertise at industry events, our experts currently working on real-world modernization engagements shared their experience at monthly Innovation Town Halls. We shared some of the insights from these experts on LinkedIn and in recent blogs. 

That includes describing how Karsun innovates quickly while ensuring high-quality delivery. For instance, we shared how Karsun uses artificial intelligence to drive process improvement and ensure data privacy. ReDuX AI is central to this, enhancing productivity by 22.5% for mainframe modernization. For instance, ReDuX addresses code parsing challenges early then generates production-ready code faster than human teams. Karsun’s approach also integrates AI for human-centered design (HCD) and can enhance organizations’ Zero Trust Architecture posture. This comprehensive approach is underpinned by an innovation culture prioritizing cross-functional collaboration and strategic investment in the right technology and processes.
Whether internally at Karsun Innovation Town Halls or at industry events, insights from Karsun leaders support the adoption of emerging technology with the support of trusted exports. Whether you are seeking new frontiers with AI or seeking new methods to accelerate your modernization journey, contact Karsun to get started today!

At Karsun Solutions, culture and technical excellence go hand in hand. Government agencies and enterprise organizations rely on Karsun not just for innovation, but for consistent delivery of high-performance software, secure and scalable cloud architectures, AI-powered workflows, and actionable data solutions. Behind that technical strength is a culture recognized repeatedly as one of the best in the industry.

Doing Extraordinary: Culture That Enables Elite Execution

Most recently, the IT modernization company was named a Technology Industry Top Workplace. Since its founding, it has received repeated recognition for innovation, growth, and culture. That includes regional and national awards.

2025 alone, Karsun earned:

• Technology Industry Top Workplace
• Washington Post Top Workplace
• USA Today Top Workplaces
• Culture Excellence Awards in Innovation, Leadership, Purpose & Values, and Work-Life Flexibility
• Washington Business Journal Largest Government Technology Contractors
  

With these awards Karsun demonstrates that its environment empowers its teams to grow in their careers. In turn Karsun supports them as they deepen their expertise and deliver advanced modernization solutions aligned to agency missions. This people-centered approach is at the core of its “Find Your Next” workplace culture motto.

In short, for over 15 years Karsun team members have taken up the challenge to Be Greater, Do Extraordinary and empower its customers to Modernize for Every Next. Below is a comprehensive list of their accomplishments.

Comprehensive Summary of Culture & Workplace Awards

These consistent recognitions reinforce Karsun’s standing as an award-winning modernization partner.

Solutions Powered by Culture-Driven Expertise

With resources available such as those provided through its in-house innovation center,Karsun teams rapidly test, validate, and scale emerging technologies. This is an essential asset in expanding their capabilities to modernize mission-critical systems. With a culture built around continuous learning and experimentation, teams deliver custom solutions that defy legacy constraints.

Going deeper, Karsun nurtures expertise in four key areas: software development, cloud solutions, AI solutions, and data solutions. They have extensive expertise in areas such as acquisitions management, aviation, fleet management and grants management.

Karsun teams specialize in:

• Modern Software Development
  Agile, secure, scalable applications tailored for government missions. Karsun’s methodology is appraised at CMMI Level 5.
  Uncover modern software development
• Cloud Enablement & Optimization
  Boosted by its Cloud Runways toolkit, Karsun delivers migration, architecture, and governance across AWS, Azure, and hybrid environments.
  Explore cloud capabilities
• AI-Driven Modernization
  AI/ML solutions embedded in workflows to streamline federal operations.
  Learn more about AI solutions
• Enterprise Data Management
  From data lakes to paving the way for AI and ML solutions, unlock data value at scale.
  Discover data offerings

Why Government Agencies Trust Karsun

As a result of these resources, Karsun meets the demands of large, complex modernization initiatives. It has delivered on multiple $100+ million contracts. It currently serves agencies such as the General Services Administration and Federal Aviation Administration. Through its subsidiaries and strategic partnership it can also support engagements at the Department of Defense and state and local agencies.

Karsun’s Award-Winning Culture Brings Value to Government Agencies:

• Award-winning teams recognized nationally for innovation and leadership.
• Proven results across cloud, AI, software, and data engagements.
• Deep alignment to federal compliance, governance, and mission priorities.

Start your modernization journey with a partner that brings top talent, deep expertise, and a culture that delivers. Contact Karsun to learn more.

As agencies such as the Internal Revenue Service shrink workforces and adopt leaner operational models, resources to support large scale modernization efforts are increasingly constrained. It is under this strain that John Gilroy opens a recent episode of the Federal Tech Podcast recorded live at the AWS Summit in Washington, D.C. Karsun Co-Founder Kartik Mecheri joins John and former General Services Federal Acquisition Services (GSA FAS) Commissioner Alan Thomas for a discussion on AI, digital workforces and the future of government modernization.

As John observes, the landscape of federal technology is at a critical juncture. Imagine systems born in the 1960s, like COBOL, still running essential government operations, while the average federal worker was born almost two decades later! This generational gap, combined with a shrinking government workforce creates an undeniable need for modernization.

At the same time, government agencies face immense pressure to deliver better experiences for their customers while grappling with complex legacy systems and processes that have been perfected over decades. These systems, often mainframes, are not just old; they are mission-critical, meaning they cannot be simply turned off for upgrades. Modernizing them is, as John notes, akin to “doing a little upgrade while you’re flying the plane”.

The AI Imperative: Introducing ReDuX AI-Powered Modernization

Enter Artificial Intelligence, AI. Government agencies are increasingly interested in AI for modernization to pick up the slack from fewer personnel and improve service delivery. Karsun Solutions offers a powerful tool designed specifically for this challenge: ReDuX.

The ReDuX Modernization Platform Addresses Several Key Pain Points:

• Declining Subject Matter Expertise: As veteran employees retire, the deep knowledge of these legacy systems often walks out the door with them. Redux.ai aims to capture this expertise.
• Complex Migrations: Converting decades of intricate code and interactions into modern architectures within a tight timeframe (e.g., 40 years of work into a 5-year project) is a monumental task.

How ReDuX Transforms Modernization

Redux uses specialized AI agents to streamline the modernization process:

• Blueprinting Agents: These agents delve into legacy code, extract crucial information, and integrate it with user guides and demonstrations. The goal is for the agents to become the subject matter expert on the legacy system.
• Modernization Agents: Once the legacy system is understood, these agents can convert the code to run on modern cloud platforms like AWS or Azure. They ensure the new system adheres to the required architecture and security posture of the agency.

Karsun has successfully used ReDuX to migrate multiple mainframe COBOL applications and other legacy systems (like Visual Basic 6, VB6) to modern technologies. This approach can accelerate modernization by 4x and reduce costs by 2x, reducing key modernization tasks by months and even years.

The Rise of the Digital Workforce

A key concept driving this transformation is the “digital workforce”. This involves building digital equivalents or “digital assistants” for every role in the software development cycle. Imagine:

• An architect agent that understands your target architecture and generates diagrams, documentation, and security architecture.
• Agents for creating unit tests, generating code, or ensuring security compliance.
• Agents for business analysts to create user stories.

The idea is to empower agile teams with digital support allowing them to focus on strategic, high-value, creative, and innovative work. While managing human teams is a well-understood skill, managing these “agents” is a new frontier that the future leaders will need to master.

Looking ahead, experts predict that within a year, we will see more demonstrable examples of AI deployment with clear business benefits. Leaders will need to balance AI’s promise with risks. As they conclude their discussion, John, Kartik and Alan discuss strategies for mitigating AI hallucinations, improving accuracy and reducing security risks. They also discuss identifying technology partners with the strategic relationships required to effectively implement technology in the evolving environment.
For federal legacy systems the modernization journey is complex, but with innovations like Karsun Solutions and the ReDuX team, the path to a more efficient, agile, and secure government future is becoming clearer.

Tune in to the podcast to learn more or check out GoReDuX.ai

At Karsun Solutions, we’re constantly pushing the boundaries of innovation, especially when it comes to modernizing legacy systems. Our monthly Innovation Town Halls showcase how our experts use emerging technologies like automation and AI to solve real-world customer challenges. Recently, we had two insightful presentations that highlighted the power and versatility of our ReDuX AI-powered modernization platform in transforming complex legacy code using an AI code parser. That team recently summarized their findings on our GoReDuX Blog. Today we’re sharing their insights below.

Natural/ADABAS Modernization with ReDuX AI Code Parser

A common pain point for mainframe customers involves systems written in legacy Natural code with ADABAS. The desire to move away from these systems is driven by several factors, including proprietary software costs, workforce shortages and the fine-tuning required for proper system performance. 

While other modernization tools offer automations for refactoring or replatforming, they often fall short in providing deeper insights. Moreover, they do not lay the groundwork for future enhancements.

The ReDuX Solution

Karsun expert Eamon Cusic shared how his team addressed this. Using ReDuX, they developed a Natural parser capable of assessing both the syntax and semantic structure of the code The team utilized ReDuX Blueprinting agents to analyze user behavior, software module code, and VSAM database schema.

This enabled them to provide context within the VSAM, including crucial elements like core business logic, data flow, and screen flows. With ReDuX Blueprint citations, Eamon’s team could even examine exact window management subroutines, providing unprecedented clarity.

Conquering VB6 and Unsupported Third-Party Components

Raminder Saluja, an AI for modernization leader in our aviation practice, shared another critical challenge facing his customer. A vital legacy application faced obsolescence because its language and third-party components were no longer supported, making modifications and bug fixes nearly impossible. The looming threat? The application was anticipated to stop working with the next Windows update.

The ReDuX Solution

Raminder’s team needed a tool for rapid modernization. ReDuX proved to be the solution, not only capable of parsing VB6 code but also validating requirements and generating test cases as part of the modernization process. After leveraging the Blueprinting agents (like those used for Natural), Raminder’s team extended ReDuX’s VB6 parsing to its code companion code generation agent. The ultimate goal: migrate VB6 to a VB .Net application.

This approach dramatically reduced the modernization timeline. While traditional methods can take over a year, this ReDuX-powered effort is expected to be completed within a 6-month timeframe.

ReDuX: A Mature Framework for Any Legacy Language

What these case studies demonstrate is ReDuX’s incredible adaptability. Whether you’re dealing with Natural, VB6, Oracle Forms/Apex, or other legacy coding languages like COBOL, ReDuX provides a mature framework that allows for the addition of new parsers and libraries. Depending on the language’s complexity, a ReDuX AI engineering team can typically write new parsers in just 2-6 weeks.

Both Eamon and Raminder leveraged this mature process to tackle previously intractable code parsing problems, transforming challenging modernization efforts into achievable projects.

ReDuX empowers Architects, BAs, Product Owners, Designers, Developers, and Testers to achieve significant improvements. Connect with us to discover how ReDuX can tackle your legacy code challenges and accelerate your modernization journey!

What often appears to be “overnight success” is usually the result of years of strategic investment, learning from failure, and relentless perseverance. In the workplace, innovation doesn’t arise by chance—it’s cultivated through intentional effort, structured initiatives, and a culture that inspires people to imagine what’s possible.

Award-winning organizations don’t leave innovation to luck. They create environments where creativity flourishes and bold ideas are transformed into meaningful results. Here are some of the foundational strategies that drive innovation behind the scenes:

1. Encouraging Psychological Safety

One of the most powerful predictors of a high-performing team is psychological safety—the belief that it’s safe to take risks, speak up, and share unconventional ideas without fear of embarrassment or retaliation.

When employees feel secure, they’re more likely to voice new concepts, challenge the status quo, and support each other through trial and error. Innovation requires experimentation, and that means sometimes failing forward. A psychologically safe environment turns failure into feedback and fuels the kind of creative thinking that leads to breakthroughs.

2. Fostering Cross-Functional Collaboration

When people from different departments, roles, and backgrounds collaborate, they bring fresh perspectives and uncover unexpected solutions.

Organizations that encourage this kind of cross-functional synergy consistently outperform those that operate in silos. Collaboration fosters empathy, promotes knowledge-sharing, and sparks the kind of energy that drives change. Highlighted in Karsun’s previous blog post on collaboration and communication, which explores how a connected culture leads to higher-quality outcomes—demonstrating that the best ideas often emerge at the intersection of diverse experiences.

3. Investing in the Right Technology and Processes

True innovation requires the right infrastructure. That means not just having access to cutting-edge tools, but embedding smart processes that empower employees to do their best work.

Forward-thinking companies are constantly evolving their tech stacks and workflows to remove friction, boost efficiency, and open doors to new ways of thinking. These investments aren’t just about staying competitive, they signal to employees that the organization believes in their potential and is committed to enabling their success.

Building a Culture That Sustains Innovation

A thriving culture of innovation is never accidental. It’s a reflection of leadership choices, employee empowerment, and a clear vision of what’s possible. By prioritizing the employee experience—through trust, creativity, collaboration, and capability—organizations don’t just achieve recognition. They build workplaces where people are inspired to grow, experiment, and shape the future every single day.

Behind every award, milestone, or major leap forward lies a story of intention. Success, it turns out, is built in the quiet moments: brainstorming sessions, courageous conversations, and the unwavering belief that tomorrow can always be better than today.

This blog was written by Karsun expert Angela Brooks. Angela is Karsun’s Director of Talent. Connect with her on LinkedIn.

Learn how innovators and experimenters grow at Karsun then dive into the latest from our Karsun Innovation Center.

Lisa Hoover, Head of Experience and Design at Karsun Solutions recently joined John Gilroy and the Federal Tech Podcast. In this insightful discussion, they delve into the evolving Customer Experience (CX) landscape in the midst of rapid technological change.

Shifting from UX to CX

In their discussion, Lisa describes the evolution of focus from user experience (UX), which centers on digital product solutions, to CX, an all-encompassing approach to technology products. CX considers entire interactions a person has with an organization’s brand, throughout their entire relationship with that brand including solutions, services, and of course, the UX on an organization’s website. 

In the federal sector, there’s a growing awareness of CX. This was driven by previous executive orders on federal customer experience and service delivery. However, Lisa notes that initially, the focus was often on meeting requirements, simply “checking a box” for CX rather than truly embracing human-centered design principles.

The Legacy System Challenge 

A significant hurdle in improving federal CX is the prevalence of legacy IT systems. These monolithic systems with complex, entangled codebases make modernization difficult. Customers often get stuck with inefficient processes due to these outdated applications, and manual patches only exacerbate the problem. Lisa observes this is why a “checking-the-box” approach to requirements is not enough, organizations need to implement a holistic, product mindset.

Unlike commercial companies that can independently implement user-friendly changes, the federal government faces limitations due to these legacy systems and strict compliance requirements, including those surrounding data privacy and security. That’s why, Lisa notes, only 23% of Americans believe federal services are easy to navigate, indicating a significant need for improvement

Measuring CX Effectiveness 

Measuring the impact of CX improvements is more complex than measuring UX, where metrics like bounce rate and time to task completion are readily available from web analytics and other resources. In the past, insights into customer challenges were often buried in support tickets, making it difficult to establish a baseline for improvement. However, with the rise of artificial intelligence (AI), organizations can tease apart the complex relationships between online and offline activities, paint a clearer picture, and improve customer experience.

The Dawn of Approachable AI 

Shifting the conversation to the role of AI in addressing these challenges, Lisa emphasizes that AI has become increasingly “approachable.”  Modern AI has moved from an abstract concept to a mainstream technology, largely due to advancements like OpenAI. This increased familiarity makes federal customers more open to accepting AI-powered solutions.

AI for Efficiency at Scale

AI presents a remarkable opportunity to achieve efficiency at scale within federal agencies. Instead of replacing humans, AI can help individuals become more efficient by automating manual tasks and allowing them to focus on higher-value work. For instance, developers currently spend a significant amount of time troubleshooting legacy systems; AI can help reduce this well-known “time suck.”

A Blueprint for Modernization

Karsun Solutions offers a potential solution with its ReDuX AI-powered modernization platform. ReDuX creates a blueprint of a legacy system, breaking down the architecture and the behavior of the system’s users. This provides situational awareness and context awareness, allowing various stakeholders to understand the system as a whole. This comprehensive view helps teams devise strategic modernization plans beyond simply “patching holes.” By offering this overarching blueprint, ReDux aims to take the guesswork out of legacy system challenges.

Streamlining Decision-Making with AI

AI, when integrated with platforms like ReDuX, can significantly streamline decision-making and accelerate modernization efforts. By providing a holistic view of complex systems, teams can identify areas for improvement, implement standardized solutions, and measure the impact. AI-powered tools like chatbots and augmented reality can further guide users and help interpret data for UI improvements at scale.

The Future of Efficiency and Enhanced CX 

Lisa concludes by expressing excitement about the future. She envisions increased adaptation of AI-enhanced solutions like ReDuX to modernize legacy systems more efficiently. The goal is to create federal services that are more usable, faster, and ultimately lead to satisfied and joyful customers. The key takeaway is that efficiency, enabled by understanding the big picture and leveraging AI responsibly, will be crucial in transforming federal IT and customer experience.

To learn more about Karsun’s ReDuX modernization platform, visit GoReDuX.AI. To listen to the full podcast, tune in at https://www.theoakmontgroupllc.com/ep-220-how-customer-experience-can-make-or-break-federal-technology-initiatives/

Government agencies facing an increasing mandate to move from legacy mainframe systems. The solution, generative AI. Now, agencies no longer need to fear the tradeoff between migration risk and the opportunity available in the cloud. In this case study featured on the AWS Public Sector Blog, our Karsun experts share their experience accelerating modernization with AI.

This case study features Karsun Solutions’ ReDuX AI powered migration and modernization platform. It offers a compelling approach for enterprises considering mainframe migration. Sharing their experience modernizing legacy applications for one of our government customers, this case study demonstrates what happens when modern AI tools meet modern software development practices. 

Deep Insights Using Amazon Bedrock

ReDuX is designed to tackle typical obstacles in mainframe modernization, such as undocumented business rules, technical complexities, and regulatory compliance. Its approach is inspired by Karsun’s decade and a half modernizing complex enterprise systems for the federal government. ReDuX utilizes generative artificial intelligence (GenAI) powered by Amazon Bedrock to analyze and understand legacy systems. 

Using Bedrock the Karsun team accessed high-performing foundation models from leading AI companies via a single API. Building their ReDuX platform on top of the resources provided by Bedrock, our team created an AI powered toolkit for identifying and mapping the complex business rules and processes embedded within mainframe applications. This facilitates a smoother transition to modern architectures. Further, by providing a structured approach, ReDuX reduces risks associated with legacy system modernization.

Matching AI with Modern Microservices Architecture

In the case study, we share how using our AI powered platform, we enabled our government customer to migrate from monolithic mainframe systems to microservices-based architectures on AWS. This shift enhances scalability, flexibility, and maintainability of applications, aligning with modern IT strategies. 

It also allowed our team to focus on security and privacy. Recognizing the importance of enterprise-grade security and privacy, especially in government and regulated industries, the platform incorporates robust measures to protect sensitive data during and after the migration process. ​

Furthermore, migration to the cloud enables secure-by-design architecture. Using AI powered tools, like those available on the ReDuX AI platform, lets our agency customers access the benefits of the cloud while reducing migration risks. Written in a modern language, it alleviates workforce concerns and eliminates long-term maintenance issues arising from the aging, dwindling population familiar with COBOL and other outdated languages.

By demonstrating a successful implementation of generative advanced AI technologies and cloud services to migrate and modernize legacy systems, this case study from our team offers valuable insights. It presents a potential roadmap for organizations seeking to undertake similar modernization initiatives. Head over to the AWS Public Sector blog for deeper insights on AI-driven modernization and a technical breakdown of our solution.

We recently announced that we were appraised at CMMI Level 5 DEV for a third time. This maturity appraisal comes from ISACA, a global professional association focused on governance of enterprise IT, and represents the highest maturity level in that organization’s CMMI (Capability Maturity Model Integration) framework.

Few companies meet the requirements for CMMI Level 5 Dev and we’re honored to appraise at this level three times. We’re proud to deliver quality consistently at the highest levels. Artificial intelligence, AI, powers the statistical and quantitative techniques used to meet our performance objectives.

In fact, in 2024 experts from our Karsun Innovation Center spoke at the ISACA CMMI Conference. At this conference, they presented a case study from one of our teams supporting a government agency customer. This team used AI tools included in our ReDuX AI platform to enhance efficiency while creating production ready code at a rate faster than if human teams produced that code on their own. 

To better understand how AI can drive these process improvements, we share some insights from their talk below. For deeper insights on AI, development and modernization, Discover How ReDuX AI Works. 

The Case for AI Powered Process Improvement

We presented this real-world case study at the annual CMMI conference in Phoenix, Arizona in 2024. CMMI appraisals were originally designed to help the Department of Defense understand its process. Today organizations around the world now seek out CMMI assessments. Karsun’s software development methodology is appraised at the highest tier for software development appraisals indicating we use a data driven process to analyze, assess and continually improve our practices.

The story begins in the Karsun Innovation Center. This center houses the Karsun research and development unit responsible for prototyping and integrating emerging technology and connecting our team members with industry technology leaders and experts. Part of the work of the Innovation Center includes building toolkits, playbooks and other resources. 

That includes an agile platform we built called GoLean that’s used by our software development teams. Using this platform, we tracked performance data, made adjustments, and observed the impact of our process improvements using dashboards and other tools to gain insights. Using the tools in this platform our teams compared incremental improvement to past performances, identified practices that were outliers from our average performance, and made adjustments to reduce the impact and risk of those outlier events. This approach to agile development resulted in our first two CMMI Level 5 DEV appraisals.

Meanwhile, artificial intelligence opened up the door to truly optimize our practice. We began building AI tools that could handle very high dimensionality. In other words, the model used by the AI needed to handle data with many related factors. 

This allowed us to understand the relationship between processes and the impact of changes to those processes. We could now better assess moving certain processes to the left, testing new automation practices or adding new DevOps or CI/CD tools. We could now measure holistic improvement to more rapidly scale and drive improvements among our development teams enhancing our overall efficiency.

The Results: Elevating Efficiency with AI

This, when combined with other tools in our AI platform, boosted our team’s efficiency as they modernized a 30 year old mainframe system. With the use of AI, our team saw a 22.5% increase in productivity! What’s more, using AI, they developed reusable resources to further optimize our processes.

In addition to new and improved methods for measuring process improvement, our ability to deliver high quality code quickly was further improved by AI agents. From code generation to scalability templates, agentic AI introduced yet another opportunity to further enhance our efficiency. To uncover this part of our toolkit visit us at GoReDuX.AI.

Agile development is in our DNA. Now using AI to boost efficiency in government, we’re leading the pack with high quality software and modern enterprise systems to meet agency missions. 

Ready to partner with proven performers? Contact our team here to get started!

As a software developer/solutions architect, navigating the complexities of modernizing legacy applications requires more than just adopting new technologies. It demands a deep understanding of software design patterns that ensure scalable, resilient, and maintainable solutions. Unfortunately, in the rush to modernize, crucial design patterns are often overlooked, leading to technical debt, performance bottlenecks, and security vulnerabilities. This article explores key design patterns frequently ignored by modernization teams, the reasons they are neglected, and the consequences of bypassing them. By integrating these patterns into modernization strategies, developers and architects can build robust, future-proof applications that stand the test of evolving technological landscapes.

Strangler Fig Pattern

The Strangler Fig Pattern is a gradual migration strategy where new functionality is built around the existing legacy system, slowly replacing it until the old system is entirely phased out.

• Why it’s overlooked: Modernization teams often opt for a full rewrite rather than incremental refactoring, assuming that starting from scratch will be faster and more efficient. However, this can introduce significant risks and delays.
• Real-world example: A financial institution migrating from a monolithic COBOL-based mainframe to a microservices-based architecture used the Strangler Fig Pattern. They introduced an API layer that progressively handled more transactions while legacy components were retired incrementally.
• Consequence of ignoring it: A complete system rewrite without this pattern can lead to prolonged development times, business disruptions, and increased failure risks due to untested new implementations.
• When to use: Use this pattern when modernizing large, complex legacy applications that cannot afford extended downtime or complete overhauls at once.

Saga Pattern

The Saga Pattern manages distributed transactions by breaking them into a series of smaller, compensating transactions.

• Why it’s overlooked: Modernization teams often assume eventual consistency is automatically handled by microservices frameworks, neglecting explicit transactional workflows. Implementing sagas can be challenging due to the need for handling failures and maintaining consistency. Teams may opt for simpler orchestration mechanisms without considering the potential for distributed transaction failures.
• A real-world example: An online travel booking system had issues where partial failures left customers with incomplete reservations (e.g., flights booked but hotels not confirmed). Implementing the Saga Pattern ensured rollback mechanisms were in place, maintaining data consistency across services. 
• Consequence of ignoring it: Without the Saga Pattern, distributed systems suffer from data inconsistencies, orphaned transactions, and poor user experience. Distributed transactions can lead to inconsistencies if not handled properly. Failures in one service can impact the entire transaction.
• When to use: Use this pattern when dealing with distributed transactions involving multiple services that must maintain consistency and systems with complex business transactions that span multiple services.

Sidecar Pattern

The Sidecar Pattern runs auxiliary services in separate containers alongside main application services, enabling functionalities like logging, monitoring, and security without modifying the core application.

• Why It’s Overlooked: Modernization teams may prioritize core service development and neglect auxiliary concerns, leading to bloated application code.
• Real-World Example: A fintech company used the Sidecar Pattern to deploy a separate logging and monitoring service alongside each microservice, simplifying debugging and performance tracking.
• Consequence of Ignoring It: Neglecting this pattern leads to tightly coupled services, making maintenance difficult and increasing the complexity of scaling and updating auxiliary functions.
• When to Use: Use this pattern when microservices require independent functionalities like logging, monitoring, or security without modifying the core service logic.

Circuit Breaker Pattern

The Circuit Breaker Pattern prevents a system from continuously making requests to a failing service, reducing unnecessary load and enabling faster recovery.

• Why it’s overlooked: Modernization teams often assume cloud-native platforms handle failure gracefully, ignoring the need for explicit fault tolerance mechanisms.
• Real-world example: Netflix employs the Circuit Breaker Pattern to maintain high availability in its microservices architecture. If a particular service fails repeatedly, the circuit breaker trips and prevents further calls until recovery.
• Consequence of ignoring it: Without circuit breakers, cascading failures can occur, where a single failing microservice can bring down an entire system due to unhandled retries and excessive load.
• When to use: Use this pattern in distributed systems where service failures must be isolated to prevent widespread outages.

Bulkhead Pattern

The Bulkhead Pattern isolates different components or services so that failures in one do not impact the others.

• Why it’s overlooked: Many teams focus on horizontal scaling but neglect to compartmentalize workloads, making services susceptible to systemic failures.
• Real-world example: In e-commerce platforms, checkout, inventory, and recommendation services can be isolated using bulkheads to ensure that failure in one does not affect the others.
• Consequence of ignoring it: Ignoring this pattern can lead to entire systems going down due to a single point of failure, significantly impacting user experience and revenue.
• When to use: Use this pattern in microservices architectures where services must operate independently to ensure resilience.

Event Sourcing Pattern

The Event Sourcing Pattern stores changes to an application’s state as a sequence of immutable events rather than modifying records directly.

• Why it’s overlooked: Teams often prioritize relational database models and transactional consistency, overlooking event-driven architectures that enhance auditability and scalability.
• Real-world example: Uber uses event sourcing to track rides, payments, and user interactions, ensuring that every action is recorded as an event for consistency and debugging.
• Consequence of ignoring it: Not using event sourcing can lead to data inconsistencies, loss of historical data, and difficulties in troubleshooting and replaying past transactions.
• When to use: Use this pattern in applications requiring strong audit trails, historical tracking, and event-driven state management.

CQRS (Command Query Responsibility Segregation) Pattern

CQRS pattern separates read and write operations into different models, optimizing for performance and scalability.

• Why it’s overlooked: Many teams’ default to CRUD-based architectures without considering read-heavy or write-heavy optimizations.
• Real-world example: E-commerce platforms like Amazon use CQRS to manage inventory updates separately from customer queries, ensuring high performance under heavy loads.
• Consequence of ignoring it: Ignoring CQRS can lead to database contention, performance bottlenecks, and inefficient scaling strategies.
• When to use: Use CQRS in high-performance applications where read and write workloads differ significantly.

Repository Pattern

The Repository Pattern separates the business logic from data access, providing a clean abstraction layer between application logic and database queries.

• Why It’s Overlooked: Modern ORM (Object-Relational Mapping) frameworks promise simplified data management, leading teams to believe explicit repository layers are unnecessary.
• Real-World Example: A healthcare software provider initially used direct ORM calls within service classes. As the system scaled, database logic became scattered, leading to maintenance challenges. Refactoring to use the Repository Pattern improved code organization and maintainability.
• Consequence of Ignoring It: Ignoring this pattern leads to tightly coupled code, making it harder to switch databases, optimize queries, or maintain separation of concerns.
• When to Use: Use this pattern when dealing with complex domain logic that requires a clean separation between business rules and data access.

API Gateway Pattern

The API Gateway Pattern acts as a single entry point for all client requests, routing them to appropriate backend services while handling cross-cutting concerns like authentication, logging, and rate limiting.

• Why It’s Overlooked: Teams may assume direct client-to-microservice communication is sufficient, leading to complex client logic and inefficient network calls.
• Real-World Example: A streaming service adopted an API Gateway to handle authentication, request aggregation, and traffic management across various backend services, improving performance and security.
• Consequence of Ignoring It: Without an API Gateway, microservices architectures can become fragmented, increasing security risks, inconsistent data access, and complex client-side logic.
• When to Use: Use this pattern when managing multiple microservices and requiring centralized handling of security, authentication, and request routing.

Modernization efforts should not only focus on adopting new technologies but also on leveraging proven design patterns to ensure scalability, resilience, and maintainability. Patterns like Strangler Fig, Saga, Circuit Breaker, Bulkhead, Event Sourcing, Repository, Sidecar, and CQRS provide essential strategies to ensure a scalable, resilient, and maintainable architecture. By integrating these patterns into modernization efforts, teams can avoid common pitfalls, minimize risks, improve system reliability, and create robust solutions for the future.

A version of this blog was first posted by Karsun expert Lakshman Maruri. Lakshman is an expert in our aviation portfolio. Connect with him on LinkedIn. Our Karsun Cloud Solutions experts use tools like those available in our Cloud Runways and Microservices Toolkits to accelerate transformation and build resilient, scalable architecture. Learn more at https://karsun-llc.com/innovation-center/modernization-and-transformation-toolkits/cloud-runways/