Welcome to my portfolio

Hi, I am Subir Das

A Passionate

I break down complex user experience problems to create integrity-focused solutions that connect billions of people.

Specialist

AI Agent

Full Stack Developer

Years of
Expertise

Engineering Intelligence into Modern Web.

Full-Stack Developer & AI Agent Architect

I am Subir Das, a passionate Full-Stack Developer with extensive experience in building robust and scalable web applications. Beyond core development, I also specialize in AI Agent Engineering and n8n Workflow Automation, designing intelligent agents and automation pipelines to optimize complex business processes.

By combining deep expertise in Full-Stack Development with advanced AI and automation skills, I create solutions that are both powerful and intelligent, delivering seamless user experiences and operational efficiency.

Full-Stack Development

Specialized in Next.js, MERN stack, and high-performance system architecture.

Autonomous AI Agents

Developing self-thinking agents using LLMs to handle complex business logic.

n8n Workflow Automation

Building advanced automation pipelines to sync 400+ apps using n8n.

Scalable Infrastructure

Ensuring applications remain fast, secure, and reliable under heavy traffic.

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My experience

Oct 2025 - Present

Junior Software Engineer

Codealign

Worked on end-to-end full-stack web application development, focusing on RESTful API development, backend logic, database management, and frontend integration. Built responsive and user-friendly interfaces, ensured smooth data flow between frontend and backend, optimized performance, and collaborated remotely with cross-functional teams to deliver scalable and efficient solutions.

Jun 2025 - Sept 2025

Full Stack Developer (Internship)

Codealign

As a Full Stack Developer Intern at CodeAlign, I develop responsive and scalable web applications using Next.js, React, Redux, and Node.js. I work closely with UI/UX designers to improve user experience, build backend APIs with MongoDB, PostgreSQL, Prisma, and Mongoose, follow clean code practices, and deliver features through agile, sprint-based workflows.