Make the right modernization choice—reduce risk, unlock innovation, and deliver more features per sprint with DevOn.
DevOn helps engineering leaders modernize legacy systems pragmatically using refactoring, replatforming, or rebuilding. Guided by deep technical expertise, Dutch directness, and elite engineering teams.
Legacy holding your organization back?
Legacy systems are holding your organization back. Do you recognize these?
- Releases are slow and risky
- Knowledge is locked in a few senior developers
- Cloud, AI, and security improvements are hard — or impossible
- Business teams demand change faster than IT can deliver
You know modernization is necessary, but choosing the wrong approach can cost millions.
The Stakes
Modernizing too aggressively can:
- Disrupt critical business processes
- Create long delivery freezes
- Burn trust with stakeholders
Modernizing too cautiously can:
- Keep technical debt growing
- Prevent AI and data-driven innovation
- Increase operational and security risks
The real challenge isn’t whether to modernize—but how.
Our unique approach
For 20+ years, DevOn has helped organizations modernize mission-critical systems, with a unique approach.
- Only top engineers hired (1 in 20), paid above market
- Long-term team retention—developers stay for years
- NPS of 95—CIOs value our candor and partnership
- Dutch culture—direct, transparent, and delivery-focused
- Deep expertise in AI, cloud, DevOps, security, and platform engineering
- All technologies, all clouds, nearshore, offshore, or blended teams
We don’t sell a single modernization recipe.
We help you choose the right path for your system and business goals.
How to choose wisely between Refactor, Replatform or Rebuild? Let’s have a closer look at the differences.
A. Refactor: Modernize from the Inside
Best when:
- Core functionality is still valid
- Business logic is complex and valuable
- You want faster delivery without full replacement
What we do:
- Incrementally refactor codebases
- Introduce automated testing and CI/CD
- Improve modularity and domain boundaries
- Enable AI-assisted development and Copilot usage
Outcome:
✅ Lower risk
✅ Faster releases
✅ Improved code quality
✅ Extended system lifespan
B. Replatform: Move Without Rewriting
Best when:
- Infrastructure is the main bottleneck
- You want cloud scalability and resilience
- Time-to-value is critical
What we do:
- Migrate to modern cloud platforms (Azure, AWS, GCP)
- Introduce platform engineering and DevOps practices
- Improve security, observability, and reliability
- Prepare systems for AI integration
Outcome:
✅ Reduced operational costs
✅ Better performance and uptime
✅ Faster innovation
C. Rebuild: Start Fresh—Strategically
Best when:
- Architecture no longer fits the business
- Technical debt blocks every change
- You want to enable new digital products
What we do:
- Domain-driven redesign with business stakeholders
- Incremental replacement using strangler patterns
- Agile delivery with measurable business outcomes
- AI-first architecture where it makes sense
Outcome:
✅ Future-proof architecture
✅ Faster feature delivery
✅ Alignment between IT and business
How We Help You Decide
We never start with technology—we start with context.
Our Legacy Modernization Assessment includes:
- SDLC and architecture review
- Code quality and test coverage analysis
- Delivery speed and DORA metrics
- Security and operational risk assessment
- AI readiness evaluation
You’ll receive a clear recommendation:
- Refactor, Replatform, Rebuild—or a hybrid approach
- A phased roadmap with realistic milestones
- Risks, costs, and expected ROI
How DevOn Delivers Results
- Agile & DevOps by default
- AI used throughout the SDLC—not as a buzzword
- 2× more value per sprint through better engineering practices
- Fully remote or blended teams—nearshore & offshore
- Short-term projects or long-term partnerships
We don’t just modernize systems.
We upgrade how your teams deliver software.
Training & Advisory (Often the Missing Piece)
Modernization fails when teams aren’t ready.
DevOn also provides:
- Developer training on Copilot & AI-assisted coding
- DORA metrics & engineering effectiveness coaching
- Platform engineering and DevOps enablement
- Secure coding, test automation, and unit testing
- Connecting development teams with AI agents
This ensures modernization sticks, even after we step back.
Proof & Trust
CIOs and CTOs work with DevOn because:
- We say no when it’s the right answer
- We commit only to what we can deliver
- Our engineers become part of their teams
That’s why customers stay with us for years.
