Back End Developer

Diopter AI · India

Stack: Go, Python, PostgreSQL, microservices

About the role

We're hiring backend engineers to design, build, and own services at the heart of our platform. This is a role for engineers who want hard problems: scale, concurrency, correctness under failure, and not a ticket queue. You'll own systems end to end: design, implementation, tests, rollout, and what happens at 2am when something breaks.

What you'll do

• Design and build backend services in Go and Python that run in production at scale.
• Own service boundaries and API contracts in a distributed microservices architecture.
• Model data and tune performance in PostgreSQL; schema design, indexing, transactions, and safe migrations on live tables
• Solve open-ended problems where the right answer isn't written down yet: scope it, write the design, ship it, measure it
• Make systems observable, reliable, and cost-efficient; metrics, tracing, SLOs, incident response
• Review code and raise the engineering bar for the people around you

What we're looking for

• 5+ years of professional backend engineering experience
• Strong hands-on Go and Python
• Proven experience building and operating large-scale microservices; service decomposition, versioned contracts, async messaging, retries, idempotency, and debugging across service hops
• Solid PostgreSQL depth: query tuning, indexing strategy, isolation levels, migrations without downtime
• A track record of solving complex, real-world problems and owning them through to production

Good to have

• Mobile development experience (iOS / Android); a strong plus
• gRPC / protobuf, event-driven and streaming systems
• Kubernetes, Docker, AWS, or GCP
• CI/CD and observability tooling (OpenTelemetry, Prometheus, Grafana)
• Multi-tenant SaaS experience