Solutions / Legacy Maintenance

Older applications need controlled maintenance before anyone can make good modernization decisions.

We help teams take over, stabilize, document, test, and maintain legacy applications that still support the business. The first goal is control: know how the system works, how it is released, where it is fragile, and what should be improved first.

A rewrite may eventually be right, but rewrite-first thinking is expensive when the current system is poorly understood. We focus on practical maintenance steps that reduce risk and give the team better evidence.

Takeover path

Make the application understandable and changeable again

  • Map the codebase, dependencies, runtime, deployment flow, and ownership gaps
  • Identify the risks that make every change slower or more dangerous than it should be
  • Add focused regression tests around behavior that must not break
  • Document build, release, operational, and support paths
  • Stabilize small issues before making larger architectural decisions

When to ask for help

Legacy pain is usually an operations and ownership problem too

  • Only one person understands deployment or production support
  • Dependencies are outdated but nobody knows what is safe to upgrade
  • There are few tests, or tests exist but do not cover business-critical behavior
  • Incidents take too long because logs, environments, and ownership are unclear
  • The rewrite discussion keeps returning because maintenance feels unmanaged

Packages

Start with a takeover brief, then maintain and improve in small, testable steps

Legacy Application Maintenance

For organizations that need a reliable engineering partner to stabilize, maintain, and gradually improve older applications without jumping straight to a rewrite.

5000-12 000€
initial takeover
8000-20 000€
monthly maintenance

Timeline: 2-6 weeks for takeover

Time & Material Consultation

Hourly, weekly, or monthly consultation and continuous work for long-term contracts. Prices are per expert needed based on seniority.

100-200€
per hour
4000-6000€
per week
10 000-15 000€
per month

FAQ

Do you recommend rewriting legacy systems?

Not by default. The first step is usually to make the current system understandable, testable, deployable, and observable enough that rewrite or modernization decisions are evidence-based.

Can you take over maintenance from an overloaded internal team?

Yes, if the takeover can include codebase access, deployment context, business-critical behavior, and a clear support or improvement scope.

What is the first useful outcome?

A practical current-state brief: how the application works, how it is deployed, what risks are known, which tests or docs are missing, and what should be fixed first.