All insights
Offline-first mobile for 1,200 field agents
How we synced a national field team across low-connectivity India with WatermelonDB and a CRDT-driven conflict resolver.
Naveen Reddy· Principal Engineer April 22, 2026 9 min read
1,200 field agents across rural India, working in basements, trains, and villages with patchy 3G. Their jobs depend on the app, the app depends on data, and the data lives on a server they can't always reach.
We built an offline-first sync engine with WatermelonDB on the client, a CRDT-shaped conflict resolver, and a server-side queue that reconciles deterministically. This is the architecture we now ship by default for any mobile engagement where connectivity is variable.
Naveen Reddy
Principal Engineer
Keep reading
More from the team.
Want this in your inbox?
One engineering email a month.
No fluff, no roundups. Practical patterns, real numbers, and the occasional war story.