Open to opportunities

Hi, I'm

Kunal.

Full-Stack Developer

I craft fast, scalable digital systems — from pixel-perfect UIs to battle-hardened infrastructure.

View My Work Grab My Resume

~/portfolio

$ whoami

kunal_halder

$ cat skills.json | jq '.top'

[ "React", "Astro", "TypeScript", "Tailwind CSS", "Next.js" ]

$ git log --oneline -3

57r4bqy feat: ship nexus

1 Project Live

Full-Stack + DevOps

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My Arsenal

Skills & Technologies

A curated toolkit refined through building real-world products from scratch.

Frontend

React Frontend

Astro Frontend

Tailwind CSS Frontend

Next.js Frontend

Language

TypeScript Language

Backend

Node.js Backend

PostgreSQL Backend

Redis Backend

DevOps

Docker DevOps

CI/CD DevOps

Tools

Git Tools

Linux Tools

All Technologies

React Frontend

Astro Frontend

TypeScript Language

Tailwind CSS Frontend

Next.js Frontend

Node.js Backend

PostgreSQL Backend

Redis Backend

Docker DevOps

CI/CD DevOps

Git Tools

Linux Tools

React Frontend

Astro Frontend

TypeScript Language

Tailwind CSS Frontend

Next.js Frontend

Node.js Backend

PostgreSQL Backend

Redis Backend

Docker DevOps

CI/CD DevOps

Git Tools

Linux Tools

Git Tools

CI/CD DevOps

Docker DevOps

Redis Backend

PostgreSQL Backend

Node.js Backend

Next.js Frontend

Tailwind CSS Frontend

TypeScript Language

Astro Frontend

React Frontend

Linux Tools

Git Tools

CI/CD DevOps

Docker DevOps

Redis Backend

PostgreSQL Backend

Node.js Backend

Next.js Frontend

Tailwind CSS Frontend

TypeScript Language

Astro Frontend

React Frontend

What I've Built

Featured Projects

Each project is a complete system — designed, engineered, and shipped end-to-end.

All Projects on GitHub

Live

Nexus

A scalable social media application

Nexus is a full-stack social platform built to handle millions of concurrent users. It features real-time feeds, end-to-end encrypted messaging, a distributed media pipeline, and a microservices architecture deployed on Kubernetes.

React Node.js PostgreSQL Redis WebSockets Docker Kubernetes AWS

Live Demo GitHub

Journey So Far

Experience

Self-directed, research-backed, and shipping real products from day one.

2024 – Present

Actively Building & Exploring Opportunities

Current Focus

Channelling every hour into shipping products, deepening system-design skills, and connecting with great teams.

Building production-grade full-stack applications end-to-end
Studying distributed systems, cloud architecture & platform engineering
Contributing to open-source infrastructure tooling
Actively interviewing for full-time roles and select freelance projects

Let's Connect

2022 – Present

Independent Full-Stack Development

Self-Directed

Designed, built, and shipped multiple production applications, owning every layer of the stack from database design to CI/CD pipelines.

Built Nexus, a real-time social platform serving concurrent users with a distributed microservices backend
Developed the Meeting Automation Agent — cut per-meeting overhead by 80% with an LLM transcription pipeline
Architected containerised deployments on AWS ECS and Kubernetes with Terraform-managed infrastructure
Implemented monitoring, alerting, and zero-downtime deployment strategies

On Paper

Resume

A condensed view of skills, projects, and education. Download the full PDF below.

Kunal Halder

Full-Stack Developer

I craft fast, scalable digital systems — from pixel-perfect UIs to battle-hardened infrastructure.

kunalhalder177@gmail.com

Kolkata, India

github.com/kunal-halder577

Core Skills

React Node.js TypeScript Docker K8s PostgreSQL AWS Terraform

Experience

Independent Full-Stack Development

2022 – Present

Built Nexus, a real-time social platform serving concurrent users with a distributed microservices backend

Projects

Nexus

A scalable social media application

Download Full Resume (PDF) — or view the sections above

Get In Touch

Contact Me

Whether you have an opportunity, a question, or just want to say hello — I'd love to hear from you.

Open to full-time & freelance opportunities

Let's build something great together.

I'm actively exploring new opportunities. Whether it's a full-time role, a short contract, or a side project — reach out and let's talk.

kunalhalder177@gmail.com

Find me online

GitHub LinkedIn

github.com/kunal-halder577

linkedin.com/in/kunal-halder-338b32281/

"The best time to start building was yesterday. The second best is right now."