Ajay Prajapat

Node.js / NestJS Backend Architect

Node.js / NestJS Backend Architect | NestJS (9-10 yrs) · Node.js · Express · REST · GraphQL · WebSockets · Kafka · RabbitMQ · Redis · PostgreSQL · MongoDB · AWS · Docker · Kubernetes

ajayprajapat@live.com +91-93105-39354 LinkedIn GitHub Udaipur, India · Open to remote

12+Years Experience

49+Projects Delivered

8Core Skills

Professional Summary

Node.js / NestJS Backend Architect with 9-10 years of NestJS and Node.js depth. Expertise in microservices, event-driven architecture (Kafka, RabbitMQ), CQRS, API design, high-throughput systems, Redis, and Docker/Kubernetes delivery. 42+ production backend systems. This CV is tailored for backend-heavy API and platform teams.

Core Competencies

UI Architecture — Designs maintainable frontend systems with reusable components, state boundaries, and scalable routing patterns.

Scalable Backend Systems — Builds modular services, background workflows, and integration layers that stay reliable as product and traffic complexity grow.

System Design & Architecture — Translates product and platform goals into service boundaries, deployment patterns, and maintainable technical direction.

Serverless Edge Platforms — Designs edge and serverless systems across Cloudflare Workers, Workers for Platforms, and AWS serverless services with reliability and cost efficiency in mind.

API Design & Integrations — Defines clean contracts for frontend, backend, and third-party integrations with an emphasis on consistency and operational clarity.

Cloud & DevOps Delivery — Improves release reliability through containerized delivery, deployment automation, and production-ready cloud operating patterns.

Technical Skills

Primary Stack Tenure:Node.js / NestJS (9-10 years), JavaScript / TypeScript (11-12 years), Agentic AI / GenAI (3+ years), Angular (9-10 years)

Architecture:System Design, API Design, Microservices, Distributed Systems, Event-Driven Architecture, Domain-Driven Design (DDD)

Delivery:AWS, Azure, Docker, Kubernetes, CI/CD, Observability, Performance Optimization

AI / Automation:Agentic AI / GenAI (3+ years), RAG, Tool Calling, LangChain, LangGraph, OpenAI APIs, Anthropic Claude

Career Timeline

AI Agentic Architect

Jun 2026 - Aug 2026

MobileProgramming

Architected agentic AI solutions for enterprise clients — multi-agent workflows, tool calling, MCP integrations, and RAG pipelines using LangChain/LangGraph with Claude and OpenAI models, with production guardrails and governance.

Sr. Fullstack Engineer

Mar 2022 - Feb 2026

Apple

Spearheaded scalable Generative AI applications, boosting productivity by 25%. Optimized fullstack solutions using Angular, Spring Boot, Node.js, and Next.js, and implemented DevOps pipelines that cut CI/CD time by 40%.

Sr. Full Stack Engineer

Oct 2021 - Mar 2022

Pratisthan Ventures Software Pvt. Ltd.

Built Node.js payment services with Redis, RabbitMQ, and MongoDB for transaction, settlement, and audit workflows in a regulated financial environment.

Team Lead - Sr. Software Engineer (Full Stack NodeJS)

Aug 2019 - Sep 2021

Smart Factory Solutions India Pvt Ltd

Led backend and telemetry architecture for real-time industrial monitoring systems using NestJS, WebSockets, and Dockerized AWS workloads.

Senior Software Engineer (Full Stack NodeJS)

Aug 2018 - Aug 2019

Neon TSS Pvt. Ltd.

Led Wi-Fi streaming platform delivery across firmware and cloud services, migrating from PHP/HTML to Node.js/NestJS and Angular-based applications.

Technical Research Assistant

Dec 2016 - May 2018

Geetanjali Institute of Technical Studies, Udaipur

Worked with a US-based client on a Welding Learning Management System (LMS), and built backend and web prototypes for ERP, LMS, IoT, and content-delivery systems using Node.js, Angular/React, and MongoDB.

Coordinator

Jan 2015 - Nov 2015

HDFC Bank

Coordinated Training Resource Line (TRL) team operations and cross-team scheduling at HDFC Bank, Udaipur.

Software Engineer

May 2012 - Aug 2013

VHS Technology Private Limited

Developed and maintained a School Management Software system using .NET, C#, and SQL — backend logic, data integrations, and incremental feature delivery.

Mentorship, Training & CSR

Weekend and volunteer engagements — conducted outside full-time employment hours.

AI Mentor & TrainerWeekend · Volunteer

Weekends (Sat–Sun) · Oct 2021 – Present

APPNEURAL

Weekend mentorship and training initiative — designing and delivering AI training programs in AI/ML, NLP, Computer Vision, and GenAI, with 500+ professionals trained through structured cohorts and workshops.

Technical Workshops & Knowledge SharingWeekend · Volunteer

Ongoing · Weekends

Developer communities & institutions

System design, GenAI adoption, and fullstack engineering workshops for developer communities, college students, and early-career engineers — including free sessions as a community give-back (CSR) effort.

Key Achievements

Delivered 15+ full-stack systems across product, platform, and integration layers, reducing average release cycle time by 35% and improving production readiness scores to 98%. Signature examples include Banking Payment System and Backendless REST/WebSocket Platform.

Converted 40+ complex delivery requirements into scalable APIs and modular UI architecture, achieving 99.9% uptime across 3 production environments. Added 3+ years of LLM, Agentic AI, AI automation, GenAI, Cloudflare Workers, serverless architecture, edge computing, secure sandboxing, and multi-tenant platform engineering experience across product, platform, and enablement contexts.

Improved engineering throughput by 2.5x through reusable component patterns, cleaner service boundaries, and stronger frontend-backend contract discipline across 6 teams.

Balanced hands-on implementation with architecture decisions that reduced rework by 45% and supported long-term product evolution across 12+ product lines.

Selected Projects

Banking Payment System

Backendless REST/WebSocket Platform

Enterprise SaaS (NestJS services)

BizXOS (NestJS control plane)

Dynamic Configurable Server

Education

MCA

ISBM University — Jun 2025 - May 2027 (Pursuing)

BCA

Bhupal Nobles' University, Udaipur — 2010-2012

Certifications

Triplebyte Certified

Triplebyte

Verified Skills

Node.jsNestJSExpressREST APIsBackend: NestJS (9-10 yrs), Node.js, Express, REST APIs, GraphQL, WebSockets, Python/FastAPIData: PostgreSQL, MongoDB, Redis, Kafka, RabbitMQ — high-throughput data patternsCloud: AWS, Docker, Kubernetes, CI/CD, Cloudflare Workers, ObservabilityArchitecture: CQRS, Event-Driven, DDD, Microservices, API Design, Multi-Tenant