Case Study

Concrete results. Real stories.

Each technical debt case study below documents how we helped engineering teams regain control of their software and deliver measurable software refactoring results.

Fintech Series A 8 months

B2B Payment Platform

Fast-growing fintech startup with a legacy platform unable to support the required transaction volume. The engineering team spent 70% of their time managing incidents.

The Challenge

  • 8-year PHP monolith with no automated tests
  • 40+ production incidents per month
  • Risky deployments requiring entire weekends
  • Impossible to hire quickly: 6-month onboarding

The Eden Intervention

We worked with the team for 8 months, implementing a strategy of progressive monolith decomposition into independent services, starting from the most critical areas.

  • Extraction of 3 critical microservices
  • Full CI/CD implementation
  • 85% test coverage on new modules
  • Complete architectural documentation

Measurable results

-78%

Incidents/month

4x

Deployments/week

-65%

Time per feature

3 weeks

Dev onboarding

SaaS B2B Scale-up 6 months

Enterprise Management Software

SaaS company with 200+ enterprise clients whose codebase had become a classic legacy modernization case study: feature releases consistently broke existing client customizations.

The Challenge

  • Codebase with 15+ forks for different clients
  • Impossible to release universal updates
  • Team fragmented on maintenance instead of innovation
  • Rising churn rate due to lack of new features

The Eden Intervention

We designed and implemented a plugin architecture system that allows customizations without forks, unifying the codebase while maintaining flexibility for each client.

  • New modular plugin architecture
  • Migration of 200+ clients with no downtime
  • Feature flags system for gradual rollouts
  • Internal API for secure extensions

Measurable results

1

Unified codebase

2x

Features/quarter

-45%

Maintenance costs

-60%

Churn rate

Key Learnings

Common patterns in our interventions

Every project is different, but some patterns repeat. Here is what we have learned.

Technical debt is always more expensive than you think

The hidden costs (team slowdown, recurring bugs, hiring difficulties) often exceed the cost of a software refactoring intervention.

Incremental beats revolutionary

Complete rewrites rarely work. Incremental, targeted interventions deliver safer and more predictable results.

The internal team is fundamental

The best interventions are done WITH the team, not INSTEAD of the team. Knowledge transfer is part of the success.

Our Approach

Every project is different

But our approach remains constant: rigorous analysis, measured intervention, demonstrable results. Every refactoring success story starts with a clear diagnosis.

Total transparency

Weekly progress reports, shared metrics, no surprises.

Collaboration

We work with your team, not instead of your team. Skills transfer included.

Guaranteed results

We define success KPIs together. If we do not reach them, we review the agreement.

The next success story

Tell us your challenge. We analyze together if and how we can help you achieve similar results.

Talk about your project