Own the backend for a real-time ETA dairy/food delivery/collection , multi-tenant platform that streams live location data and delivers accurate ETAs at scale. You’ll design and build reliable, 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
tests
, set up CI/CD, add logging/metrics, and keep the app stable.
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

3+ years backend experience building
real-time or event-driven
systems in production.
Node.js + 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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