Available for Senior AI & Backend Engineering Roles

Building Scalable Backend Microservices & Agentic AI Systems

Hi, I'm Himanshu Saini — a Software Developer with 4 years of expertise in Node.js (NestJS), Python (FastAPI), Vector DBs (Qdrant), RAG Workflows, and LiveKit Real-Time AI Agents.

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Mohali, INDIA

himanshu@ai-engine:~

const developer = {
name: "Himanshu Saini",
role: "Software Developer",
experience: 4, // Years
coreFocus: [
"Agentic AI Architecture
                                (LangGraph/RAG)",
"Real-Time Voice Agents
                                (LiveKit)",
"Scalable Microservices (NestJS /
                                FastAPI)"
],
vectorDatabases: ["Qdrant"],
metrics: {
scalabilityBoost: "40%",
deployErrorReduction: "50%",
apiLatency: "< 1s"
}
};

                            > developer.deployAgenticSolution();
                            
                        

BACKGROUND & PHILOSOPHY

Architecting High-Performance Backend & AI Infrastructure

Agentic AI & RAG Integration

Specialized in combining LLMs with vector search engines like Qdrant. Expertise in constructing agentic execution workflows via LangChain & LangGraph for intelligent document Q&A, context-aware chatbots, and autonomous customer meeting agents using LiveKit.

Backend Microservices & APIs

Proven track record of designing high-availability RESTful & GraphQL microservices using Node.js (NestJS) and Python (FastAPI). Focused on database query tuning, background worker queues, caching with Redis, and maintainable ORM patterns (Prisma/TypeORM).

Leadership & AI Developer Tools

Experienced in leading cross-functional teams of developers to deliver critical software pipelines. Early adopter of AI-assisted coding workflows (Cursor, Claude Code, Gemini, MCP) to accelerate feature shipping cycles while ensuring robust software architecture.

TECH SPECS

Technical Expertise & Tooling

LangChain / LangGraph Expert

Qdrant Vector DB Advanced

LiveKit Voice AI Advanced

RAG Architectures Expert

Agentic AI Workflows Expert

Node.js / NestJS Master

Python / FastAPI Advanced

TypeScript / JS Master

Microservices Expert

GraphQL & REST APIs Master

WebSockets / Socket.io Advanced

PostgreSQL & MySQL Advanced

Redis Caching Advanced

Prisma / TypeORM Expert

AWS Services Proficient

MCP (Model Context Protocol) Advanced

Cursor / Claude Code / Gemini Expert

GitLab CI/CD / Git Advanced

React.js & Angular Proficient

CAREER JOURNEY

Work Experience

Sep 2025 – Present

Software Developer

Bridging Technology Private Limited

Current Role

Owned end-to-end feature delivery from requirement analysis to production deployment across backend (Node.js, NestJS, Python/FastAPI) and frontend (React.js, Angular).
Engineered high-concurrency RESTful APIs maintaining strict sub-1-second response times under live production loads.
Partnered with the AI team to design agentic AI systems using LangChain & LangGraph for workflow automation and RAG-based document Q&A.
Architected a LiveKit-based real-time voice AI agent capable of autonomously managing live customer meetings, executing calendar bookings, and triggering payment actions.
Leveraged state-of-the-art AI developer tools (Cursor, Claude Code, Gemini) to significantly accelerate sprint delivery cycles while upholding code reliability.

Node.js NestJS FastAPI LangChain LiveKit Voice Qdrant React.js

Oct 2022 – Sep 2025

Software Developer

Ashriya Infotech Private Limited

3 Years

Architected microservices-based backend architectures from scratch, improving overall application scalability by 40%.
Developed high-performance RESTful and GraphQL APIs using Node.js & NestJS for seamless internal data pipelines and third-party vendor integrations.
Integrated machine learning models into production systems, bridging backend software engineering with real-world AI capabilities.
Built real-time communication infrastructure with WebSockets and built live telemetry dashboards to enhance server uptime.
Executed database query optimization, indexing strategies, and background worker queue designs to execute large-scale data tasks.

Microservices Node.js GraphQL WebSockets MySQL/PostgreSQL Performance Tuning

PORTFOLIO SHOWCASE

Featured Projects & Case Studies

Voice AI Agent

6 Months

Instant Demo — AI-Powered Live Meeting & Sales Assistant

A real-time meeting platform equipped with dynamic slide generation, live audio transcription, and an in-call AI agent capable of answering complex questions via voice or chat.

LiveKit Node.js Python LangChain OTP Auth

Enterprise AI CRM

10 Months

Prism — Internal CRM & Multi-Product Analytics Platform

Comprehensive internal analytics engine featuring a dual Node.js backend (monolith + microservices) and a Python AI backend powering RAG chatbots with Qdrant vector retrieval.

NestJS FastAPI Qdrant MySQL Microservices

Healthcare Ecosystem

22 Months

Thynq — Mental Health & Teleconsultation Ecosystem

Healthcare platform facilitating face-to-face, phone, and live video consultations with doctors. Includes an AI medical chatbot and Razorpay package booking system.

Node.js AI Chatbot Razorpay WebSockets React

Community Platform

28 Months

Blackmums — Community & Subscription Resource Hub

High-scale backend platform for mother support communities, handling subscriptions, secure payment flows, real-time messaging, push notifications, and media attachments.

Node.js NestJS Socket.io Subscriptions Media Pipelines

Other Notable Technical Contributions

Contributed backend architectures, AI RAG integrations, and payment engines for multiple products: LetsDXB, MyCoachApp, Learn Buddy, ARC, Subconsciously, Touchtight, and HCAH.

ACADEMIC FOUNDATION

Education

2023

MCA | Master of Computer Applications

Kurukshetra University

2021

B.C.A. | Bachelor of Computer Applications

Kurukshetra University

HONORS & LEADERSHIP

Key Achievements

Cross-Functional Team Leadership

Spearheaded a dedicated team of four software developers, driving Agile delivery schedules and establishing strict code review standards across active projects.

50% Deployment Error Reduction

Architected microservice standards and automated CI/CD deployment guidelines, drastically cutting down environment setup bugs and deployment failures by 50%.

Building Scalable Backend Microservices & Agentic AI Systems

4+

40%

50%

< 1s

Architecting High-Performance Backend & AI Infrastructure

Agentic AI & RAG Integration

Backend Microservices & APIs

Leadership & AI Developer Tools

Technical Expertise & Tooling

Work Experience

Software Developer

Bridging Technology Private Limited

Software Developer

Ashriya Infotech Private Limited

Featured Projects & Case Studies

Instant Demo — AI-Powered Live Meeting & Sales Assistant

Prism — Internal CRM & Multi-Product Analytics Platform

Thynq — Mental Health & Teleconsultation Ecosystem

Blackmums — Community & Subscription Resource Hub

Other Notable Technical Contributions

Education

MCA | Master of Computer Applications

B.C.A. | Bachelor of Computer Applications

Key Achievements

Cross-Functional Team Leadership

50% Deployment Error Reduction

Let's Connect & Build Together

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