Backend Python Developer

1 day ago


Cochin, Kerala, India Delta International Institute Full time ₹ 15,00,000 - ₹ 25,00,000 per year

Join our backend team to architect and scale low-latency FX trading services. You'll build FastAPI

microservices, model real-time market data in PostgreSQL, and engineer an idempotent stream

consumers across Kafka/Redpanda/RabbitMQ/SQS.

■ Responsibilities


• Develop & maintain FastAPI microservices (auth, market ingestion, order flow, reporting)


• Design PostgreSQL schemas for tick/quote/OHLCV data


• Implement UPSERT logic with deduplication & idempotency


• Build queue/stream consumers with robust exactly-once/at-least-once semantics


• Optimize: async I/O, connection pooling, indexing, partitioning


• Write resilient tests (e.g., property-based for rounding, contract tests for APIs)


• Deploy observability: metrics, logs, tracing, alerting

■ Must-Have Skills


• 2–3 years of Python in production (FastAPI, async, typing, Pydantic)


• Solid PostgreSQL knowledge (indexes, query plans, partitioning, ACID/transactions)


• Strong with stream/queue systems (Kafka, RabbitMQ, SQS)


• Proven track record of idempotent upserts & retry-safe processing


• Proficiency with Docker, Git, CI/CD pipelines

■ Nice-to-Have


• Experience with FX/market data (ticks, OHLCV, timezones, rounding)


• ETL tools (Pandas, NumPy, Arrow), Redis, K8s, Terraform


• Security-aware (authN/authZ, rate-limiting, secret handling)

■ Stack You'll Touch


• Python 3.11+


• FastAPI, Pydantic


• PostgreSQL 14+


• Kafka/Redpanda (or RabbitMQ/SQS)


• Docker, pytest


• Prometheus, Grafana



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