We build software
that resonates.
The Resonance Team is a small product engineering studio based in Vietnam. We work with founders and SMEs to ship considered software — from a first MVP to the platform it grows into.
A predictable way to build careful software.
No big-reveal demos. Working software in week three. A written plan you can hold us to.
Discover.
We start every engagement with a focused two-week discovery — interviews, technical scoping, a written plan you can hold us to.
Design.
Working software in week three. We ship rough first, then sharpen against feedback. No big-reveal demos.
Build.
Twelve-week production blocks with a single point of contact, weekly written updates, and a calendar you can see.
Hand off.
We leave behind a codebase your next engineer can read on day one — typed, tested, documented, and boring on purpose.
What we actually do.
Product engineering
Web and mobile apps from scratch — typed end to end, deployed continuously.
AI & retrieval
RAG systems, evaluation harnesses, and the unsexy infrastructure that keeps them honest.
Platform & infra
Postgres, queues, observability, security review. The substrate your product sits on.
Design & research
Interface design and user research, integrated with engineering, not handed over the wall.
Recent engagements.
A handful of projects we are proud of. The full list lives on the work page.
Fieldnote
A research notebook for ethnographers, with offline-first sync and AI clustering.
Atlas
Domain-tuned retrieval over 9 years of regulatory filings for a compliance team.
Lumen
A patient-side mobile app for tracking chronic symptoms across multiple care providers.
“They wrote the plan we should have written ourselves, then quietly delivered against it for fourteen weeks. The codebase is the cleanest thing we own.”