Legacy System Modernisation
Modernise the parts of your stack that are slowing the business down — without a full rewrite, a frozen roadmap, or a high-risk migration. Lanex pairs AI-assisted engineering with senior delivery experience to cut cycle time, clear backlog, and reduce integration risk in 4 to 8 week sprints.
Who this is built for
AI has not removed the need for engineers in mid-market software — it has raised the bar for how much output a team must deliver. Lanex is strongest when the system is complex enough that off-the-shelf AI alone cannot replace it.
Mid-market businesses running revenue-critical software on aging stacks
Teams blocked by integration debt, broken deploys, or knowledge sitting with one or two people
Companies under compliance, audit, or vendor pressure that cannot risk a rebuild
What we don't do
We avoid full-platform rewrites, multi-quarter strategy decks, and capacity-only contracts. The work is scoped, time-boxed, and tied to a measurable production outcome.
Why most legacy modernisation projects stall
The buyers we speak to are usually stuck between two bad options. Lanex was built for the third path.
The full-rewrite trap
Most modernisation projects fail because the team tries to rebuild everything at once. We don't. We modernise the system one production-critical slice at a time, in 4 to 8 week sprints with measurable outcomes per sprint.
The keep-the-lights-on trap
The other failure mode is patching forever. AI-assisted refactoring lets a small team move legacy code through structured upgrades faster than a traditional offshore squad, without disrupting daily operations.
What we measure and report on
Every sprint produces a Friday outcome report. We do not bill on engineer-hours alone. We bill against agreed outcomes, with the metrics visible to your team.
Reduce cycle time
Cut the time from feature request to production by replacing manual handoffs with AI-assisted code review, testing, and documentation generation.
Clear the backlog
AI-assisted engineers move through legacy refactors, integrations, and tech-debt tickets at materially higher throughput than headcount-only teams.
Lower integration risk
We modernise alongside your existing system, not over the top of it. Each release is observable, reversible, and tested against the real production data shape.
Pass audit and compliance
Documentation, traceability, and access control are part of the delivery, not a follow-up project. Regulated industries get audit-ready artefacts as a side-effect of the work.
From brief to first production release
Discovery sprint (1 week)
We map the system, the risk surfaces, and the highest-leverage modernisation slices. You get a written brief — what we'd ship in the next 4 to 8 weeks and what the measurable outcome is.
Pilot delivery (4 to 8 weeks)
A small AI-assisted Lanex pod (typically 2 to 4 people) ships the first slice into production. Outcome metrics — cycle time, backlog, defect rate — are reported every Friday.
Expand or stop
If the pilot hits the agreed outcome, we plan the next slice. If it doesn't, you stop. There is no long lock-in contract and no penalty for ending the engagement after a pilot.
No lock-in. No multi-quarter discovery.
Scope one sprint, ship one production outcome, decide whether to keep going. That is the entire engagement model.
Ready to modernise the system that's holding the business back?
Tell us the slice of the system that is slowing delivery, and we'll come back with a 4 to 8 week pilot scope, the outcome metric, and the team needed to ship it.