Backend and Full-Stack Engineer

Reliance Intelligence; Navi Mumbai; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

Reliance Intelligence is hiring a Backend and Full-Stack Engineer to design and ship services, APIs and web interfaces that connect devices, cloud and AI. You will work with Python and Node.js, collaborating with AI, firmware, mobile and QA teams to deliver fast, secure products at scale.

The role emphasizes building scalable backend services, secure device-to-cloud communications, and integration of AI services, with strong focus on REST/WebSocket APIs and modern frontend features.

Qualifications

• 3+ years of backend development with Python and Node.js.
• Experience building REST APIs and real-time/WebSocket services.
• Strong knowledge of SQL/NoSQL databases and cloud platforms.
• Familiarity with authentication (OAuth, JWT) and API security.
• Experience with CI/CD, testing and code reviews.

Responsibilities

• Design, build and maintain scalable backend services and REST/WebSocket APIs using Python and Node.js.
• Develop full-stack features, including responsive web dashboards and admin tools.
• Integrate AI services such as LLM APIs and vector databases into production systems.
• Build secure device-to-cloud communication for pairing, media upload and updates.
• Design efficient database schemas and optimize queries across SQL/NoSQL stores.
• Write clean, tested and well-documented code; participate in code reviews.
• Set up CI/CD, monitoring, logging and alerting with the DevOps team.
• Troubleshoot production issues and improve performance and reliability.
• Follow best practices for data privacy and security.

Skills

Python

Node.js

REST APIs

WebSockets

System design

OAuth/JWT

CI/CD

Security

Unit testing

Tools

PostgreSQL

MySQL

MongoDB

Redis

AWS

Docker

Git

Job description

We’re building AI-powered smart devices and connected-home experiences used by millions of people. As a Backend and Full-Stack Engineer, you’ll design and ship the services, APIs and web and app interfaces that connect devices, cloud and AI. You’ll work with Python and Node.js, collaborating closely with AI, firmware, mobile and QA teams to deliver fast, reliable and secure products at scale.

Key Responsibilities

• Design, build and maintain scalable backend services and REST/WebSocket APIs using Python and Node.js
• Develop full-stack features, including responsive web dashboards and admin tools, using modern frontend frameworks
• Integrate AI services such as LLM APIs, speech and vision pipelines, and vector databases into production systems
• Build secure device-to-cloud communication for pairing, media upload, settings sync and over-the-air updates
• Design efficient database schemas and optimize queries across SQL and NoSQL stores
• Write clean, tested and well-documented code; take part in code reviews
• Set up CI/CD, monitoring, logging and alerting with the DevOps team
• Troubleshoot production issues and improve performance, reliability and cost
• Follow best practices for data privacy and security, since our products handle sensitive audio and camera data

Required Skills

• 3+ years of hands-on backend development in Python (FastAPI, Django or Flask) and Node.js (Express or NestJS)
• Strong fundamentals in data structures, algorithms and system design
• Experience building and consuming REST APIs; familiarity with WebSockets or event-driven systems
• Solid knowledge of databases such as PostgreSQL or MySQL, plus MongoDB or Redis
• Working knowledge of cloud platforms (AWS, GCP or Azure), Docker and Git
• Understanding of authentication and authorization (OAuth, JWT) and API security

Good to Have

• Experience integrating LLM APIs, prompt and context handling, or RAG pipelines
• Exposure to IoT or device-connected systems, MQTT or Bluetooth/Wi-Fi onboarding flows
• Kubernetes, message queues (Kafka, RabbitMQ) and infrastructure-as-code
• Experience with multilingual applications or speech and media processing
• Familiarity with automated testing (Pytest, Jest) and observability tools