Hi, I'm Raj
Software engineer focused on backend systems, AI agent infrastructure, and developer tooling.
RK

About

Software engineer focused on backend systems, AI agent infrastructure, and developer tooling. Experienced in building full-stack applications, REST APIs, Linux automation, CLI tools, and production-ready workflows. Active open-source contributor in AI agent evaluation and terminal benchmarking. Currently authoring The Agent Systems Handbook, a research-driven guide covering modern AI agent architectures, memory, planning, evaluation, and autonomous software systems.

Work Experience

Skills

React
Next.js
Typescript
JavaScript
Node.js
Python
MongoDB
Docker
Bash/Shell
Tailwind CSSTailwind CSS
My Projects

Check out my latest work

I've worked on a variety of projects, from simple websites to complex web applications. Here are a few of my favorites.

FreelancerFlow

Built a complete full-stack platform from scratch handling project tracking, invoicing, and client management for freelancers. Reduced invoice generation time by designing a structured file I/O export pipeline. Secured all API routes with JWT authentication and middleware validation. Wrote automated endpoint tests covering all critical API routes.

React
Node.js
MongoDB
Tailwind CSS
JWT

EduStory

Built an end-to-end AI storytelling platform delivering dynamic, personalised story generation. Designed a prompt pipeline architecture that reduced AI output inconsistency by structuring inputs and validating outputs programmatically. Implemented NextAuth with persistent sessions and role-based access. Wrote validation scripts to automatically test AI-generated content quality.

Next.js
MongoDB
OpenAI API
NextAuth

macOS Portfolio

Engineered a fully interactive macOS desktop simulation in pure vanilla JavaScript — implementing a custom window manager with drag, resize, and z-index stacking from scratch using the DOM API. Built a functional dock with app launching, a working Finder-style file system, and smooth CSS keyframe animations throughout. Zero frameworks, zero dependencies — shipped and deployed to Vercel.

JavaScript
HTML
CSS

DealVault Escrow

Building a production-grade escrow platform for secure buyer-seller transactions. Designed a multi-stage transaction state machine covering fund locking, dispute handling, and conditional release logic. Enforced strict TypeScript typing across the full API surface to eliminate runtime errors. Architected the UI with Next.js App Router and server components for fast, reliable page loads.

TypeScript
Next.js
Tailwind CSS
Almost Friday
Not Live

Almost Friday

Collaborative full-stack web application built with a team across a modular React and Node.js architecture. Implemented reusable TypeScript component library with strict prop typing shared across the frontend. Structured the backend with Express route separation and middleware layering for clean API organisation. Active development with regular code reviews and branch-based Git workflow.

My Contribution

Architected the shared TypeScript component library used across the entire frontend. Structured the Express backend with modular route separation and middleware layering. Led code reviews and managed feature development through a branch-based Git workflow.

React
TypeScript
Node.js
AI Founder Intelligence
Not Live

AI Founder Intelligence

Built an AI intelligence platform that aggregates and analyses market signals for startup founders. Designed a structured LLM prompt pipeline in Python that processes competitor data and generates actionable strategic playbooks. Integrated OpenAI API with output validation to ensure consistent, reliable responses. Delivered results through a Next.js dashboard with server-side data fetching for fast time-to-insight.

Next.js
OpenAI
Python

Certifications & Achievements

Certifications

GenAI 101 with Pieces

Pieces

ID: GenAI 101 with Pieces

Nov 2024

Postman API Fundamentals Student Expert

Canvas Credentials (Badgr)

ID: EL9mYD6fSnOru3CHkrTUDQ

Jul 2024

Achievements

WiCS Hackathon

Participation

Women in Computer Science (WiCS)

Participated in the WiCS Hackathon — a competitive coding event focused on real-world problem solving.

Feb 2026
Contact

Get in Touch

Open to opportunities, collaborations, and conversations. Reach out via LinkedIn or drop me an email at koliraj911@gmail.com — I'll get back to you promptly.

GitHub
LinkedIn
Spotify
Netflix