Python Backend Developer

Actively Reviewing the Applications

Delta Institutions

Posted 1 week ago • Apply by June 19, 2026

Job Description

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

Job Types: Full-time, Permanent

Pay: ₹46,000.00 - ₹50,000.00 per month

Experience:

Python: 2 years (Required)
PostgreSQL: 2 years (Required)
Django: 2 years (Required)
Redis, RabbitMQ: 1 year (Required)

Language:

Malayalam (Required)

Work Location: In person

Required Skills

Reporting Git Django FastAPI PostgreSQL Python ETL Tools Redis Docker Terraform CI/CD Pipelines Prometheus Grafana Pandas NumPy Kafka Typing ETL CI/CD Trading SQS ACID Market data Indexing Schemas Ingestion Python 3 Stream Deduplication Low-latency PyTest K8S Observability Semantics Property Arrow Indexes Partitioning SAFe Connection Pooling

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