Desired Experience
6+ years

Role:
As a Lead Full Stack Engineer, you will be responsible for leading the architecture, development, and delivery of scalable, production-ready web applications across the frontend and backend. You will take ownership of technical decisions, system design, code quality, production readiness, and turning product requirements into clear and actionable engineering plans.
You will work closely with cross-functional stakeholders and AI/ML engineers to build and integrate AI-powered products. Robust hands-on experience working with LLMs, AI-powered applications, or AI/ML services in production environments is required. You will also be responsible for defining and maintaining reliable contracts between core application services and AI services.
This is a hands-on technical leadership role for someone who can move quickly, make strong architectural decisions, mentor and review engineers' work, and deliver high-quality features without compromising long-term scalability and maintainability.

Responsibilities:
Lead the architecture, development,



and delivery of scalable end-to-end web applications using TypeScript, React, NestJS, and PostgreSQL
Design and implement robust multi-tenant architecture, authorization, permissions, and data isolation
Build and maintain scalable backend services, REST APIs, integrations, and database systems
Develop polished, responsive, and user-friendly frontend applications using React
Build and integrate AI-powered features and LLM-based applications into production systems
Work closely with AI/ML engineers to define and maintain clear contracts and integrations between core application services and AI reasoning or processing services
Integrate and work with LLM providers and AI technologies such as OpenAI, Claude, LangGraph, or similar tools and frameworks
Design and develop workflows involving AI-driven recommendations, matching, profiling, automation, or intelligent user experiences
Work with PostgreSQL, TypeO

📌 Lead Full Stack Engineer (Mumbai)
🏢 AJACKUS
📍 Mumbai