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Full-Stack Engineering Portfolio

Shivam
Singh

Senior Full-Stack Engineer | Next.js | TypeScript | Node.js | AI Integrations

5+ years delivering high-availability SaaS products across AI, IoT, healthcare, and ad-tech.

Multi-Tenant SaaSAI / LLM ApplicationsEvent-Driven SystemsCloud Automation

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Hi, I'm

Senior Full-Stack Engineer

Shivam

Singh

JavaScriptTypeScriptReact 19Next.jsNode.jsAI / LLMPostgreSQLAWS

5+Years Experience

3Companies

Full-Stack + AISpecialist

Building resilient full-stack products with React, Next.js, Node.js, and AI integrations.

Open to full-stack, platform engineering, and AI integration opportunities.

Available for opportunities

Based in Bhopal, India

Available Remote / Hybrid

Shivam

Who I Am

TypeScript·JavaScript·React 19·Next.js·Node.js·Express.js·NestJS·PostgreSQL·MongoDB·Redis·AWS Lambda·BullMQ·Drizzle ORM·TypeORM·OpenAI SDK·LiteLLM·WebSockets·Vitest·TypeScript·JavaScript·React 19·Next.js·Node.js·Express.js·NestJS·PostgreSQL·MongoDB·Redis·AWS Lambda·BullMQ·Drizzle ORM·TypeORM·OpenAI SDK·LiteLLM·WebSockets·Vitest·

Senior Full-Stack Engineer with 5+ years of experience building scalable SaaS products across AI, healthcare, IoT, and ad-tech. Specialized in React, Next.js, TypeScript, and Node.js, with hands-on experience in distributed systems, multi-tenant architecture, event-driven workflows, and AI/LLM integrations.

Featured Work

01 / 02

AI Platform

Herbie

Multi-Tenant AI Platform

Live Demo

Architected a multi-tenant SaaS platform with domain-based routing, branded AI assistant deployments, streaming LLM responses, and event-driven referral workflows.

Next.jsTypeScriptPayload CMSDrizzle ORMPostgreSQLRedisBullMQLiteLLMClerk

Automation

Proficy Digital Console

Ad Campaign Automation

Live Demo

Delivered a serverless campaign generation pipeline with multi-platform compilers, video rendering fallbacks, duplicate guards, and scalable automation across dealership workflows.

TanStack StartReact 19TypeScriptRemotionAWS Lambdapg-bossDrizzle ORMPostgreSQLVitest

Nov 2023 - PresentFull-time

Zowork Private Limited

Software Developer

Architected and shipped scalable SaaS platforms and distributed systems for GPS fleet tracking, AI applications, device management, healthcare, and ad campaign automation.
Improved dashboard API performance through query refactoring and caching, reducing average response time by 40% across 100+ client workspaces.
Engineered multi-tenant architecture with domain-based routing using Next.js and Clerk authentication for isolated branded deployments across organizations.
Built event-driven async pipelines with BullMQ, pg-boss, Redis, AWS Lambda, SQS, SES, and webhooks for firmware updates, commissions, and rendering workflows.
Designed scalable PostgreSQL schemas with Drizzle ORM and TypeORM, backed by 4,800+ Vitest tests and CI/CD quality gates.

Next.jsTypeScriptReactDrizzle ORMPostgreSQLRedisAWS LambdaBullMQClerk

Mar 2022 - Jul 2023Full-time

Antino Labs Private Limited

Software Developer

Shipped secure document exchange, IoT monitoring, and influencer platforms using Node.js, Express, MongoDB, microservices, JWT authentication, and role-based access control.
Crafted multi-level dashboards for smart streetlight monitoring with real-time systems, IMEI-based device tracking, fault detection, and automated SMS and email alerts.
Streamlined inventory workflows with status management and vendor-based filtering across geographic hierarchies for high-availability operational platforms.
Integrated Razorpay payment gateway, AWS SQS and SES messaging, and Gupshup SMS notification workflows across multiple client applications.
Delivered secure trade-document workflows with wallet transactions, JWT role management, and asynchronous notification services.

Node.jsExpress.jsMongoDBMicroservicesJWTAWS SQSAWS SESRazorpayGupshup SMS

Sep 2018 - Feb 2022Full-time

DigiVioTech

Web Developer

Delivered WordPress solutions with custom post types, plugins, theme customization, and PayPal e-commerce integration for multiple clients.
Transitioned into Node.js and Express backend engineering, crafting RESTful APIs with MongoDB and async programming patterns.
Built responsive, maintainable CMS experiences across WordPress, PHP, HTML, and CSS for client websites and e-commerce workflows.
Built a strong foundation in client delivery, production support, and incremental modernization across web projects.

WordPressPHPNode.jsExpress.jsMongoDBREST APIsPayPal