Legacy SaaS Performance Modernization
Stabilized and modernized a legacy Meteor application — removing performance bottlenecks incrementally, without a rewrite freeze.
- Client
- B2B SaaS company (confidential)
- Duration
- Ongoing
- Team
- ElegantMind engineering team
- Industry
- B2B SaaS
What had to change
A legacy Meteor codebase was slowing under growth, and a full rewrite would have frozen the roadmap for a year
Architecture and delivery
Incremental performance modernization: profile, fix the worst bottlenecks, modernize risky modules in place, and build a migration path
The client’s product was built on Meteor — a framework well past its ecosystem peak — and performance was degrading as usage grew, while a ground-up rewrite was commercially impossible. We took the incremental path: profiling and removing the worst reactivity and load bottlenecks, modernizing the riskiest modules in place, and establishing a migration path that let the team keep shipping features throughout.
The product got faster and safer to change while the roadmap kept moving
Worst page-load and reactivity bottlenecks profiled and removed
Incremental modernization with zero feature-freeze
A concrete migration path off the legacy framework
Let's build something that matters.
Tell us what you have in mind. We'll talk through the possibilities, the practicalities, and the best place to start.