Full Stack Engineer (Python + React)

Singlefocus Services; Dadri; On-site; INR 1,200,000 - 1,700,000; Full time

Job summary

Innovaccer is seeking a versatile software engineer to contribute across the stack, building features in React/Redux on the frontend and Python/FastAPI services on the backend. You will design and integrate REST APIs, work with PostgreSQL, MongoDB, and Elasticsearch, and participate in CI/CD and container deployments.

The role emphasizes testing, observability, secure coding, and collaboration with product, design, and QA teams to deliver healthcare data platforms efficiently.

Qualifications

• Proficiency in JavaScript and Python is required.
• Experience with React (hooks) and Redux state management.
• Comfortable with both SQL (PostgreSQL) and NoSQL (MongoDB) databases.
• Experience writing automated tests for frontend and backend.
• Proficiency with Git and collaborative workflows.
• Strong CS fundamentals: data structures, algorithms, and system design.

Responsibilities

• Build features across the stack: React/Redux on the frontend, Python/FastAPI services on the backend.
• Design and integrate REST APIs, including rate limiting, retries, and idempotency for external integrations.
• Model and query data across MongoDB, PostgreSQL, and Elasticsearch as needed.
• Work with Kafka based event streams for cross-service communication.
• Write unit and integration tests on both ends of the stack (Jest/RTL on frontend, pytest on backend).
• Debug and triage production issues across the stack using observability tools to find root cause.
• Collaborate with product and design on features, and with QA on test coverage.
• Contribute to CI/CD pipelines (GitLab CI) and Docker based deployments.
• Apply secure coding practices, given healthcare data.

Skills

JavaScript (ES6+)

Python

React

Redux

REST APIs

PostgreSQL

MongoDB

Frontend testing

Backend testing

Git

CI/CD

Docker

OpenTelemetry

New Relic

Kafka

Tools

GitLab CI

Docker

OpenTelemetry

New Relic

Grafana

Kafka

Jest

pytest

Job description

About the team Access Center (Comet) is Innovaccer's healthcare workflow platform. The stack spans a React/Redux frontend served through a Node.js layer, and a Python/FastAPI backend (with some legacy Django) using MongoDB, PostgreSQL, and Kafka, with growing use of LLM/AI agent tooling. It powers multi-tenant products used by live customer deployments daily.

Responsibilities

• Build features across the stack: React/Redux on the frontend, Python/FastAPI services on the backend
• Design and integrate REST APIs, including rate limiting, retries, and idempotency for external integrations
• Model and query data across MongoDB, PostgreSQL, and Elasticsearch as needed
• Work with Kafka based event streams for cross-service communication
• Write unit and integration tests on both ends of the stack (Jest/React Testing Library on frontend, pytest on backend)
• Debug and triage production issues across the stack, using observability tools (OpenTelemetry, NewRelic) to find root cause
• Collaborate with product and design on features, and with QA on test coverage
• Contribute to CI/CD pipelines (GitLab CI) and Docker based deployments
• Apply secure coding practices, given the platform handles healthcare data

Required skills

• Proficiency in JavaScript (ES6+) and Python
• Working knowledge of React (hooks, state management with Redux) and a Python web framework (FastAPI or Django)
• Comfortable working with both relational (PostgreSQL) and NoSQL (MongoDB) databases
• Experience writing automated tests on both frontend and backend
• Proficient with Git and collaborative workflows
• Strong CS fundamentals: data structures, algorithms, and system design basics

Good to have

• TypeScript experience
• Experience with Kafka or other event streaming/message queue systems
• Experience with LLM/AI tooling: LangChain, RAG pipelines, or agent frameworks
• Familiarity with Docker and containerized deployments
• Familiarity with observability tooling (OpenTelemetry, NewRelic, Grafana)
• Exposure to multi-cloud storage SDKs (AWS, Azure, GCP)
• Healthcare interoperability background (FHIR, HL7, EHR integrations such as Epic or Cerner) - not required, general distributed systems thinking matters most