Backend Engineer - Gen AI

Whitefield Careers; Mumbai; On-site; INR 3,000,000 - 6,000,000; Full time

Job summary

Whitefield Careers in Mumbai is seeking an experienced Backend Architect to design and build scalable, high-performance services, APIs, and data pipelines. You will work with NodeJS and Python, apply AI capabilities, and ensure secure, compliant systems for real-time market data and portfolio analytics.

This role involves mentoring engineers, driving architectural decisions, optimizing queries, and collaborating with cross‑functional teams to deliver end‑to‑end features in a regulated fintech

Qualifications

• 5+ years of backend development experience with NodeJS and Python for production-grade applications.
• Proven experience building RESTful APIs and microservices architectures.
• Experience with Generative AI frameworks/APIs and production LLM integration (RAG, embeddings).
• Strong proficiency in PostgreSQL including query optimization and schema design.
• Hands-on experience with RabbitMQ and Kafka.
• Experience with BigQuery or similar data warehousing solutions.
• Solid understanding of distributed systems, scalability patterns, and high-traffic applications.
• Knowledge of authentication, authorization, and security best practices.
• Experience with Git, CI/CD pipelines, and modern development workflows.
• Exposure to cloud platforms (GCP/AWS/Azure), Docker/Kubernetes, caching tools (Redis/Memcached), and regulatory requirements (KYC, data privacy) is a plus.

Responsibilities

• Design, develop, and maintain scalable backend services and APIs using NodeJS and Python.
• Build event-driven architectures using RabbitMQ and Kafka for real-time data processing.
• Develop and manage data pipelines integrating PostgreSQL and BigQuery for analytics.
• Integrate and deploy Generative AI models (LLMs, embeddings, AI APIs) into backend systems.
• Design AI-powered features such as recommendation systems and conversational interfaces.
• Ensure system reliability, security, and low-latency performance for mission-critical systems.
• Lead technical design discussions, code reviews, and mentor junior engineers.
• Optimize database queries, implement caching strategies, and improve overall system performance.
• Collaborate with cross-functional teams to deliver end-to-end product features.
• Implement monitoring, logging, and observability solutions.

Skills

Node.js

Python

RESTful APIs

Microservices

Generative AI

PostgreSQL

RabbitMQ

Kafka

BigQuery

Distributed systems

Security best practices

Git & CI/CD

Docker & Kubernetes

Cloud platforms

Data privacy/regulatory

Performance optimization

Tools

Docker

Kubernetes

Redis

Memcached

CI/CD tools

Job description

Job Overview

Architect and build scalable, high-performance backend systems while working on mission‑critical platforms that process real‑time market data and portfolio analytics. The role also involves leveraging Generative AI capabilities to enhance data intelligence, automation, and user‑facing features, while ensuring regulatory compliance and secure financial transactions.

Key Responsibilities

• Design, develop, and maintain scalable backend services and APIs using NodeJS and Python.
• Build event‑driven architectures using RabbitMQ and Kafka for real‑time data processing.
• Develop and manage data pipelines integrating PostgreSQL and BigQuery for analytics and warehousing.
• Integrate and deploy Generative AI models (LLMs, embeddings, AI APIs) into backend systems for automation, insights, and intelligent workflows.
• Design AI‑powered features such as recommendation systems, document processing, or conversational interfaces.
• Ensure system reliability, security, and low‑latency performance for mission‑critical systems.
• Lead technical design discussions, conduct code reviews, and mentor junior engineers.
• Optimize database queries, implement caching strategies, and improve overall system performance.
• Collaborate with cross‑functional teams to deliver end‑to‑end product features.
• Implement monitoring, logging, and observability solutions.

Required Skills and Qualifications

• 5+ years of professional backend development experience with strong expertise in NodeJS and Python for production‑grade applications.
• Proven experience building RESTful APIs and microservices architectures.
• Experience working with Generative AI frameworks/APIs (OpenAI, LangChain, vector databases, prompt engineering) and understanding of integrating LLMs into production systems (RAG, embeddings, fine‑tuning basics).
• Strong proficiency in PostgreSQL, including query optimization and schema design.
• Hands‑on experience with RabbitMQ and Kafka.
• Experience with BigQuery or similar data warehousing solutions.
• Solid understanding of distributed systems, scalability patterns, and high‑traffic applications.
• Strong knowledge of authentication, authorization, and security best practices.
• Experience with Git, CI/CD pipelines, and modern development workflows.
• Excellent problem‑solving and debugging skills.
• Exposure to fintech or financial services, cloud platforms (GCP/AWS/Azure), Docker/Kubernetes, caching tools (Redis/Memcached), and regulatory requirements (KYC, compliance, data privacy) is a plus.