Legacy Modernization and Platform Migration
Move off the "temporary" system without losing what people quietly depend on.
The "temporary" tool from 2019 now runs three departments. I migrate it without losing the parts people quietly depend on - platform moves, framework upgrades, and untangling hidden business rules in steps you can verify.
Who this is for
Teams stuck on an aging stack who cannot afford a big-bang rewrite but also cannot stay put.
Sound familiar?
- Nobody fully understands what the old system does until you try to change it.
- A full rewrite was quoted at a year; the business cannot pause that long.
- Every upgrade breaks a workflow someone forgot to mention.
What you get
- Incremental migration with the system still running.
- Documented business rules that were only in someone's head.
- Rollback paths for the riskiest changes.
Deliverables
- Platform and framework migration (web stacks, CMS, legacy apps)
- Incremental rewrites during live operation
- Hidden business rule mapping before code changes
- Test coverage and rollback paths for risky moves
- Documentation of what the old system actually did
How I work
- Interview the people who work around the system - they hold the real spec.
- Strangle the old system in slices: migrate one workflow at a time.
- Keep parity checks until stakeholders sign off on each slice.