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. Strong 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 transparent 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

📌 Lead Full Stack Engineer (Mumbai)
🏢 Ajackus Consulting
📍 Mumbai