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Manav Jain

Engineering Manager at Ultrahuman, Mumbai. Seven years building backend platforms at scale, running AI in production with owned SLAs, and growing the teams that operate them.

manav.mj.jain@gmail.com · GitHub · CV (PDF) · Detailed CV (PDF)

World 5 — Ultrahuman 2025 – now · Engineering Manager

• 658 merged pull requests across three production codebases in 15 months; #1 contributor of 19 engineers on the internal operations platform.
• Streaming health-data platform: Kafka into sharded TimescaleDB hypertables, 80M+ data points across 16 metric families for 12,900+ users.
• Production LLM systems on AWS Bedrock, reviewed by clinicians daily: ~9× faster generation, up to 95% lower token cost on repair paths.
• Founded the Performance Center module of the clinic-operations platform; 18 engineers now build on it.
• AI translation pipeline: 80 languages, 1M+ strings, no dedicated localisation team.
• Cohort-based firmware rollout system: 7M+ over-the-air updates to smart rings.
• Consumer wellness features (Shift Work Mode, New Parent Mode) with 120K+ activations.

World 4 — Coding Ninjas 2020 – 2025 · SDE 3, Growth Team Lead

• Joined at ~50 people, stayed through the scale-up to ~300.
• Led growth engineering: lead management, conversion, attribution, checkout, revenue integrations.
• Managed 4 engineers building the Code360 React Native app end to end.
• Scaled the Code360 web platform from 50,000 to 2 million sessions.
• Built an immutable order ledger and a custom A/B testing and rollout framework.

World 3 — Mahakavach 2020 · Backend Lead

• Government of Maharashtra COVID-19 health-tracking app.
• Led a self-organised remote team of 5 volunteer engineers.
• Served 1.8M users at 4M requests/month on Express.js and MongoDB. Covered by The Hindu and News18.

World 2 — Digital Impact Square, TCS 2019 · Innovator

• Led a team of 6 on a road-safety platform rewarding better riding.
• Co-created a patent-pending device detecting tilt, speed and riding behaviour of two-wheeler riders.

World 1 — Open source 2017 – 2018

• Google Summer of Code 2018, The Processing Foundation: open-source debugger for the p5.js Android compiler.
• Google Code-In mentor, FOSSASIA.
• Published: iBeacon-based Indoor Positioning Systems for Airports (IJCA, 2018).

Inventory

Backend

Ruby on Rails, Node.js, Express, REST, GraphQL

Languages

Ruby, TypeScript, JavaScript, Java, SQL

Data

PostgreSQL, MySQL, TimescaleDB, MongoDB, Redis, Kafka

AI / LLM

AWS Bedrock, LLM orchestration and evaluation, token-cost engineering, MCP tooling

Infra

AWS, Kubernetes, Sidekiq, Jenkins, GitHub Actions, observability, on-call

Practices

A/B and rollout systems, release engineering, security hardening, team leadership, mentorship

Education

B.Tech., Computer Science and Engineering, GGSIPU, New Delhi, 2019.

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