Senior Backend

3 days ago

Noida, Uttar Pradesh, India NGF 132 (sampark)(Peklenc Research pvt ltd) Full time ₹ 20,00,000 - ₹ 25,00,000 per year

Senior Backend / Realtime Engineer (GCP
•
• Firebase)

About the role

Own the backend for a real-time ETA (dairy/food collection to warehouse/coldstorage), multi-tenant platform that streams live location data and delivers accurate ETAs at scale. Youll design and build reliable,and scalable; low-latency services, keep third-party API costs in check, and mentor team.

What you'll do

  • Design and implement a multi-tenant backend (orgs devices ordered stops).
  • Build real-time pipelines: ingest batched GPS updates, validate/rate-limit, publish to subscribers.
  • Compute ETA updates efficiently (mix of client-side progress + selective server recalculation).
  • Keep costs predictable for maps/routing APIs (batching, caching, cadence control, budgets/alerts).
  • Write secure access controls and data rules; prevent cross-tenant access.
  • Ship with strong observability (structured logs, dashboards, alerts) and automated tests.
  • Review PRs, set coding standards, and guide dev team.

Must-have skills

  • 5+ years backend experience building real-time or event-driven systems in production.
  • + TypeScript with a framework like NestJS or Express.
  • Hands-on with Google Cloud : serverless functions, containerized services, pub/sub messaging, secret management, monitoring.
  • Firebase : Auth, Firestore/NoSQL, Realtime listeners, and security rules or equivalent experience with AWS/Supabase + websockets.
  • Practical integration with routing/ETA APIs (Google Maps) and strong cost-control habits.
  • Solid grasp of idempotency, backpressure, batching, retry policies, and data modeling.

Nice to have

  • Postgres/PostGIS or other SQL ; Redis
  • Experience sharding workloads, running load tests, and tuning cold-start/latency.
  • OSRM/Valhalla basics, Terraform, Sentry, BigQuery/Looker
  • Prior work on mobility, logistics, ride-hailing, delivery, or transit.

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