HKHarsh KumarFull Stack EngineerLet's talk ↗

SERVICES / FULL STACK DEVELOPMENT

Engineering services for products that need to perform.

Hire Harsh Kumar for Next.js and React development, SaaS architecture, Node.js APIs, real-time applications, Python automation, AWS deployment, and technical leadership.

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Next.js & React Development

High-performance websites, SaaS dashboards, customer portals, and responsive web applications built with Next.js, React, TypeScript, and accessible interface patterns.

Next.js · React · TypeScript · Tailwind CSS · SSR · ISR
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SaaS Product Architecture

Scalable multi-tenant SaaS products with reliable account models, subscription billing, permissions, admin dashboards, background jobs, and clean API boundaries.

System Design · Multi-tenancy · Stripe · PostgreSQL · Prisma
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Node.js APIs & Backend Engineering

Production-ready REST APIs, webhooks, authentication systems, optimized database queries, and backend services designed for speed, reliability, and growth.

Node.js · Express.js · PostgreSQL · MongoDB · Redis
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Real-time Applications

Live chat, notifications, collaborative interfaces, event-driven workflows, and real-time dashboards that stay responsive for concurrent global users.

Socket.IO · WebSockets · Redis · Events · React Native
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AI & Workflow Automation

Automated research, data extraction, background processing, AI-assisted product workflows, and operational systems that reduce repetitive manual work.

Python · BullMQ · Selenium · Puppeteer · BeautifulSoup
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Cloud Delivery & Technical Leadership

AWS deployment, Docker-based infrastructure, release planning, engineering mentorship, client communication, and ownership from discovery to production.

AWS EC2 · AWS ECS · AWS S3 · Docker · CI/CD · Team Leadership

How we can work together

Product development

Build a new SaaS application, customer platform, internal tool, or high-performance web experience from the ground up.

Engineering leadership

Strengthen delivery with architecture planning, code reviews, technical mentoring, sprint ownership, and client communication.

System modernization

Improve slow APIs, upgrade legacy frontend experiences, introduce real-time features, or automate operational workflows.

Need a remote full stack developer?

Available for senior developer, product engineer, and technical lead opportunities.

Discuss your project ↗