Backend Engineer

Job Description

Backend Engineer - Job Description Location: HSR Bangalore (On-site) What you?ll do Build and scale REST/WebSocket APIs in Django for real-time, AI-powered interactions. Orchestrate async workloads with Celery, Redis (as broker/cache), and task retries/metrics. Design streaming and event-driven flows with Kafka; integrate queues with AWS SQS where appropriate. Integrate and harden payment gateways (e.g., Stripe/Razorpay/PhonePe), including webhooks, ledgers, and idempotency. Write tests, docs, and dashboards; monitor staging/production SLOs, latency, and cost. Collaborate with product/design to scope, iterate, and ship fast. What you?ve done (Requirements) Build and scale REST/WebSocket APIs in Django for real-time, AI-powered interactions. 1?3 years building scalable REST APIs with Python/Django; working knowledge of Node.js is a plus. Practical experience with Celery + Redis for background jobs and scheduled tasks. Hands-on with Kafka (consumers, partitions, offsets) and AWS SQS (DLQs, visibility timeouts). Comfortable with PostgreSQL (schema design, indexes, migrations) and MongoDB (schema design, TTLs). Implemented at least one payment gateway end-to-end (checkout flows, webhook verification, refunds). Worked with BigQuery for analytics/ELT; can design tables and write performant SQL. Solid grasp of WebSockets for real-time features. Exposure to LLM/AI systems and AWS or GCP services; strong fundamentals in system design. Habitual about tests, code reviews, and production monitoring. Feature flags/experimentation.