Open to senior roles in India & remote

AmitSaroj — Senior Full Stack Developer, AI Engineer and MERN Developer in India

Node.js · NestJS · MERN Stack · TypeScript · Microservices · AI Automation

Senior Full Stack Developer with 5+ years of experience building scalable backend services and SaaS platforms using Node.js, NestJS, TypeScript, React.js, and Next.js. Strong in microservices architecture, REST API design, and event-driven systems with Kafka and Redis. Currently building AI-powered products — AI agents, RAG pipelines, and workflow automation with n8n, OpenAI, and LangChain. Experienced in integrating blockchain APIs and wallet connectivity into full-stack applications (Web3.js, Ethers.js).

Download Resume

5+ YOEVerified Experience

3Structured Employers

0GitHub Repositories

About

Background

Senior Full Stack Developer with 5+ years of hands-on experience building scalable backend services and SaaS platforms. Currently working at Antier Solutions in Mohali, India, building full-stack blockchain platforms and enterprise-grade applications.

Previously at Arivani Technologies in Lucknow, delivering MERN Stack applications for enterprise clients across PropTech, e-commerce, and healthcare domains. Started career with a hands-on internship at Softpro India Computer Technologies.

Expanding into AI Automation Engineering — building intelligent workflows with n8n, integrating OpenAI and LangChain APIs, developing Agentic AI pipelines, and implementing RAG-based solutions with vector databases.

Open to: Senior Node.js Developer, MERN Stack Developer, Full Stack Developer, Backend Developer, AI Automation Engineer.

Career

Experience

Professional journey across enterprise software, blockchain platforms, and SaaS products.

Antier Solutions

Software Engineer (Full Stack)

Mohali, India

Feb 2023 – PresentFull-time

Node.jsNestJSFastifyReact.jsNext.jsMongoDBRedisKafkaDockerAWSWeb3.jsEthers.js

Designed and developed backend microservices in Node.js, NestJS, and Fastify for an enterprise asset-management and investment platform (Libertum), covering investor onboarding, KYC/AML workflows, asset listing, and high-volume transaction processing.
Built secure REST APIs with JWT authentication, role-based access control (RBAC), Redis caching, and rate limiting across admin, issuer, and investor modules; optimized MongoDB query performance.
Implemented Kafka-based asynchronous, event-driven workflows for background jobs and blockchain data indexing, synchronizing on-chain events with off-chain databases for reporting and compliance.
Integrated blockchain transaction APIs and wallet connectivity (Web3.js, Ethers.js) into full-stack flows for a token swap and cross-chain bridge platform, improving reliability of transaction tracking in React.js/Next.js.
Integrated payment and notification services; owned production debugging for API timeouts, failed transactions, and data-sync issues.

Arivani Technologies Pvt. Ltd.

Software Engineer (MERN Stack)

Lucknow, India

Jan 2021 – Feb 2023Full-time

Node.jsReact.jsExpress.jsMongoDBTypeScriptMySQLREST APIsRedux

Designed and developed full-stack web applications for enterprise clients using MongoDB, Express.js, React.js, Node.js, and TypeScript.
Built and maintained RESTful APIs using Node.js and Express.js with JWT-based authentication and role-based access control.
Developed responsive frontend interfaces using React.js with Redux state management; built reusable UI components and optimized rendering performance.
Developed OwnerScope, a PropTech homeownership guidance platform — built personality assessment and reporting modules, optimized MongoDB queries, and improved performance with Redis caching.
Collaborated in Agile/Scrum environment with cross-functional teams to deliver features on schedule.

Softpro India Computer Technologies

Full Stack Developer

Lucknow, India

Aug 2020 – Jan 2021Internship

Node.jsReact.jsExpress.jsMongoDBJavaScript

Trained hands-on in MERN stack development (MongoDB, Express.js, React.js, Node.js), building full-stack web applications under senior developer mentorship.
Developed REST APIs, CRUD modules, and responsive React.js UI components for internship projects.

Work

Projects

Real-world platforms built with modern architecture, deployed in production environments.

Personal ProjectJan 2026 – Present

AutopilotMonster – AI Revenue Platform

AI-native, multi-tenant SaaS platform — unifying CRM, AI Voice Calling, WhatsApp OS, Workflow Automation, and Agentic AI into one autonomous revenue-operations engine. Currently in Public Beta.

Built GPT-powered AI agents that autonomously qualify leads, handle objections, book meetings, and nurture prospects 24/7 — with sub-second latency Voice AI, real-time transcription, sentiment analysis, and bulk concurrent outbound campaigns.
Developed WhatsApp OS (shared team inbox, broadcast campaigns, no-code flow builder), drag-and-drop workflow automation, real-time ARR analytics, and built-in SaaS billing with usage-based pricing and credit wallets.
Engineered enterprise-grade multi-tenant isolation, JWT + MFA auth, RBAC, AES encryption, audit logging, rate limiting, and SOC 2–aligned security alongside a plugin marketplace for community extensions.

Antier SolutionsSep 2025 – Apr 2026

Libertum – RWA Tokenization Platform

Enterprise-grade blockchain-powered Real World Asset (RWA) tokenization platform enabling asset owners to digitize and fractionalize assets such as real estate and infrastructure projects.

Designed and developed REST APIs, implemented authentication and RBAC.
Built asset and investor management modules, integrating payment and notification services.
Optimized database performance, implemented Redis caching and rate limiting, and developed Kafka-based asynchronous workflows.

Client Work

Arivani TechnologiesApr 2022 – Dec 2022

OwnerScope – Home Ownership Platform

PropTech platform guiding homebuyers toward home ownership through a personality-based quiz, personalized resource delivery, and a unique connection key system that unlocks community features.

Built the 3-minute personality quiz flow and Ownerscope profile generation with personalized resource delivery via email.
Developed the connection key system — unique per-user link and QR code that unlocks tiered community features.
Optimized MongoDB queries and improved application performance with Redis caching.

Arivani TechnologiesJan 2021 – Aug 2021

Droupons – Doctor Appointment & Wellness

Healthcare marketplace where doctors list services and patients book appointments using coupon codes — combined with real-time chat and an integrated wellness product store.

Built doctor listing and appointment booking system with coupon code–based service purchasing.
Developed real-time chat feature connecting patients with healthcare providers.
Created wellness store module for browsing and purchasing health products alongside bookings.

Arivani TechnologiesAug 2021 – Dec 2021

Repair Zone USA – Device Repair Platform

Service platform for a US-based mobile device repair shop at Southpoint Mall, Durham — enabling customers to view repair services, get instant price quotes, and book repair appointments online.

Developed service catalog covering iPhone, iPad, Samsung, tablet, and all other phone repairs.
Built instant price quote system with a low-price guarantee and transparent pricing display.
Integrated appointment booking and location-specific storefront pages for Southpoint Mall Durham.

Arivani TechnologiesJan 2022 – Apr 2022

Kitchens & Beyond – Remodeling Platform

Business web platform for a US-based kitchen and bathroom remodeling company — showcasing custom cabinet designs, countertop options (granite, quartz, marble), and full remodeling services.

Built service showcase pages for kitchen, bathroom, basement, and bedroom remodeling.
Developed image gallery and portfolio sections to present completed remodeling projects.
Created contact and inquiry form with business hours and location details for the Indiana-based business.

Arivani TechnologiesSep 2022 – Feb 2023

Shop Hope Global – Shopify Fashion Store

Shopify-based e-commerce fashion store selling handcrafted items from Haiti — featuring curated collections, new arrivals, bestsellers, gift cards, and a Square-powered secure checkout.

Developed custom Shopify theme with product collections, new arrivals, and bestseller sections.
Integrated Square-powered secure checkout supporting CashApp, Apple Pay, Google Pay, and major credit cards.
Built responsive storefront with product search, cart management, and customer account features.

Open Source

GitHub Activity

Loading repositories…

View all on GitHub

Expertise

Skills & Technologies

Technical capabilities verified from resume, professional experience, and GitHub activity.

Languages

JavaScript (ES6+)TypeScriptPython

Backend

Node.jsNestJSExpress.jsFastifyREST APIsGraphQLMicroservicesEvent-Driven Architecture

Frontend

React.jsNext.jsRedux

Databases

MongoDBPostgreSQLMySQLRedis

AI & Automation

Generative AI (GenAI)AI AgentsAgentic AIRAGLangChainOpenAIn8nPrompt EngineeringQdrant

DevOps & Cloud

DockerAWSCI/CDGit

Web3

Web3.jsEthers.jsWallet IntegrationBlockchain API Integration

Practices

System DesignAPI DesignPerformance OptimizationMulti-Tenant SaaSRBACAgile/Scrum

Education & Certifications

Academic Background

Diploma

Diploma: Computer Science and Engineering

Board of Technical Education, Uttar Pradesh, Lucknow

2017 – 2019

Class XII

Intermediate (Class XII): Science

Uttar Pradesh Board

2015

Class X

High School (Class X): Science

Uttar Pradesh Board

2013

Apprenticeship (6 Months)

Softpro India Computer Technologies (P) Limited, Lucknow

Issued Jul 2019

Contact

Let's work together

Open to Senior Node.js Developer, MERN Stack Developer, Full Stack Developer, Backend Developer, and AI Automation Engineer roles.

Primary emailsarojamit4956@gmail.com

Send Email

WhatsAppQuick chat +91 8707831236Direct call

LinkedInProfessional network GitHubOpen source work ResumePDF download