Custom Work
The systems keeping
your business running.
Legacy systems don't need to be replaced to be made useful. We integrate, wrap, extend, and document the systems that have been running for years — without breaking what's already working.
What legacy work looks like
Extend what works. Wrap what doesn't. Replace nothing you don't have to.
Most legacy engagements start with "we need to replace it." Most of them should not. We figure out what is actually worth replacing, what should be wrapped behind a modern interface, and what just needs to be connected to the rest of the stack.
Legacy API Wrappers
Expose old systems through modern REST or GraphQL APIs without touching the underlying code. The rest of your stack gets a clean interface. The legacy system keeps running exactly as it is.
System Documentation
Reverse-engineer and document what an undocumented system actually does. Code analysis, runtime tracing, interview-based archaeology. The result is something your team can actually work with.
Legacy Integration
Connect old systems to new ones. Normalize the data, handle the quirks, map the business logic. Make it a real part of your modern stack without a rewrite and without fragile hacks.
Modernization Planning
Figure out what to rewrite, what to wrap, and what to leave alone. We will tell you the honest answer — not the one that generates the most project work on our side.
Data Extraction & Migration
Get your data out of a legacy system and into a format the rest of your stack can use. Schema mapping, transformation, validation, and verification that nothing was lost.
Custom Legacy Tooling
When a legacy system needs new capabilities, sometimes the right answer is tooling built to match the constraints of what's already there. We know how to work within those constraints.
How we approach it
We build around what works.
Not over it.
The default instinct in our industry is to replace. New stack, clean slate, greenfield. That instinct is expensive, risky, and usually wrong. Systems that have been running for ten years are running for a reason. They encode business logic that nobody fully understands anymore. Replacing them means losing that knowledge and paying to rediscover it.
We start by understanding what the system actually does — not what the documentation says it does. Then we figure out the minimum intervention that achieves the goal: a wrapper, an integration, a migration, or yes, sometimes a rewrite. But only when a rewrite is actually the right answer.
We also document what we touch. Every legacy engagement leaves behind artifacts that make the next person's job easier. That's the contract.
Tell us what you're working with.
Old COBOL, aging Rails apps, a custom ERP from 2003, something nobody wants to touch. We have seen it. Tell us what it is and what you need.