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UNDR CTRL: Product Overhaul & Technology Rebuild
UNDR CTRL had a legacy product that was difficult to maintain and scale. Marshall Tech came in to overhaul the entire technology stack: backend rebuild, frontend modernisation, database migration, automation integration, and legacy system transition. The result was a modern, maintainable platform that could scale with the business.
Platform stability
Production-grade reliability
Feature velocity
5x faster
Database performance
10x faster queries
Manual workflows
80% time saved
01 — Challenge
The problem
UNDR CTRL's primary product was built on legacy technology that had become a maintenance burden. The codebase was difficult to extend, the database structure didn't support new features, integrations were fragile, and the team spent more time firefighting than building. They needed a complete overhaul without disrupting their existing customer base.
02 — Approach
The decision
Marshall Tech proposed a phased rebuild: backend first, then frontend, with a migration strategy that allowed both systems to run in parallel during transition. We built custom APIs to replace the legacy backend, migrated the database schema to support new features, automated critical workflows that had been manual, and provided ongoing support through the launch phase.
03 — Results
Measured outcomes
| Metric | Before | After | Impact |
|---|---|---|---|
| Platform stability | Multiple outages/month | 99.9% uptime | Production-grade reliability |
| Feature velocity | Weeks per feature | Days per feature | 5x faster |
| Database performance | Slow queries, bottlenecks | Optimised, indexed | 10x faster queries |
| Manual workflows | Hours/day | Automated | 80% time saved |
| Migration risk | High | Zero downtime | Seamless transition |
04 — Stack
Technology used
“Marshall Tech took on a complex legacy rebuild and delivered without a single outage. The new architecture is night and day compared to what we had.”
CTO
UNDR CTRL, UNDR CTRL
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