Agile Delivery for Legacy Rescue & Long-Term Growth
Modernized legacy systems, stabilized core infrastructure, and introduced agile delivery to support rapid feature deployment and sustainable operations.
From Technical Debt to Reliable Delivery—One Sprint at a Time
Manwah USA, a leading furniture supplier and producer, found itself stuck. A self-taught developer had built a bespoke ERP and fulfillment system that worked—until it didn’t. When the developer left, the app became outdated and brittle, lacking documentation, testing, and deployment processes.
YohDev came in as more than engineers. We became strategic tech leaders—refactoring critical systems, introducing testing and DevOps, and embedding agile practices into their internal workflow. The result? A stable, scalable foundation with room to grow.
"YohDev is a good team. They are sharp and know what they’re doing."
— Jim Hunsberger, CFO Manwah USA
Partnership Timeline
Kickoff & Rescue
Stabilized the legacy app by upgrading frameworks and packages, refactoring code, and ensuring core services were functional during their peak sales season.
Foundational Stability
Established testing, documentation, and deployment processes, allowing the client to safely ship updates and minimize operational risk.
Feature Velocity
Scaled up agile delivery and began rolling out high-impact features aligned with evolving business needs.
Ongoing Agile Partnership
Actively delivering features, fixing issues, and maintaining the application with clear processes and minimal disruption to daily operations.
Key Initiatives & Outcomes
Legacy Modernization
Updated the Ruby-based system by 2 major versions and modernized critical gem packages without disruption.
Fullstack Engineering
Refactored the entire application while simultaneously delivering new features under a sprint-based process.
DevOps & QA
Established deployment pipelines, automated testing, and added robust monitoring for confident releases.
Agile Delivery
Embedded sprint planning, retrospectives, and velocity tracking to deliver consistent, predictable results.
Stabilizing the Unstable
When YohDev arrived, the custom-built ERP platform was fragile. Ruby and core packages were several versions behind, and pushing updates risked breaking key workflows.
We upgraded the system, introduced test coverage, and delivered critical fixes—all without disrupting service during their busiest season.
0 Downtime
During busiest sales season
Testing for Confidence
The application had no automated tests, meaning every code change posed a risk. YohDev prioritized test coverage for 70% of the codebase, focusing on critical business logic.
Now, feature rollouts are faster, and bugs are caught early—before they reach customers or internal users.
70%
Codebase test coverage
Future-Proof Agile Partnership
From feature development to architecture planning, YohDev continues to serve as an embedded tech team. We work side-by-side with Manwah USA’s leadership, balancing stability with innovation.
The agile methodology we introduced has reshaped how the business approaches tech—reducing friction, improving visibility, and aligning tech with business goals.
4+ Sprints
Per month delivered on time
The YohDev Difference
Reliable
We bring predictability to software development—even when rescuing legacy systems under pressure.
Sharp
Our experienced team quickly grasps complex codebases and business logic, reducing ramp-up time.
Strategic
We advise on architecture, deployment, and process—not just code—ensuring long-term impact.
Agile-Minded
Our team operates in sprints, delivers value fast, and iterates based on real business needs.
Stuck with legacy software?
Let’s turn it into your competitive advantage.