Technical Lead

Tech Lead – Architecting the Next Billion-User Systems

About Us

We’re Primetrace Technologies - the team behind :

Crafto – 100M+ downloads- https : / / crafto.app /

Kutumb – 100M+ downloads- https : / / kutumbapp.com /

We build products used by tens of millions. And we don’t have the luxury of things “just working.” They have to scale, survive, and stay fast — always.

About Role :

This isn’t a “manage the team” role. This is a build, break, scale, and own every damn line of backend logic role.

Our systems run on Node.js and AWS , and your job is to make them bulletproof under traffic.

If you’re the kind of engineer who gets angry when a request takes 500 ms… keep reading.

What You’ll Do

Architect Node.js systems that scale from zero to millions - resilient, battle-tested, and ready for anything.

Tear apart bottlenecks before they become outages.

Build a backend that auto-heals, scales without begging, and doesn’t melt at 1M RPM.

Own the full lifecycle - from feature idea to scaling in production.

Guide engineers, set the technical bar, and call out flawed designs.

Think ahead : design for chaos, failovers, and ugly realities before they happen.

You’re Built for This If

You’ve watched a system catch fire and brought it back with grit and caffeine.

You’ve scaled services under brutal load and lived to tell the story.

You know Node.js beyond frameworks - profiling, event loop internals, async churn.

You can rip apart AWS quirks (RDS slow queries, ElastiCache meltdowns, S3 limits) in your sleep.

You don’t wait for instructions - you see a mess and fix it.

Bonus XP (Things That Impress Us)

You’ve taken systems to 100M+ users or 6-digit RPS.

You’ve crushed AWS bills without slowing down a single request.

You’ve built real-time madness : Kafka, Kinesis, WebSockets.

You’ve designed secure-by-default infra : IAM, VPC, KMS.

What’s In It For You

Total ownership. Your code decides if we scale or die.

Zero politics, zero handholding. Just outcomes.

Massive visibility. If you’re good, everyone will know it.

Work with a team that’s already shipped to 100M+ people - and is doing it again.

If you’ve fought fires in production, debugged chaos at 3 AM, and still wanted more - you’re our kind of engineer.