Open to interesting projects

Hi, I'm Subhadeep

I'm a Full Stack Engineer

Full Stack Engineer & CTO specializing in distributed systems, high-performance APIs, and AI integrations. I currently lead engineering at Hirerkey and Noisiv Consulting, building software that powers millions of interactions.

See my work →Get in touch Resume ↗

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Years Experience

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Engineers Led

0.9%

System Uptime

0M+

Transactions Handled

What I work with

Technologies and tools I use to build things that scale.

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Backend & Systems

JavaPythonNode.jsGolangExpress.jsSpring BootNestJS

🎨

Frontend & UI

JavaScript/TypeScriptReact.jsAngular.jsNext.jsFlutter

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Cloud & DevOps

AWSDockerKubernetesCI/CDMicroservicesTerraformJenkins

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Databases

MongoDBRedisKafkaMySQLPostgreSQL

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AI & ML

Custom ModelsRAG ModelsFine-tuningLLMsVector Databases

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Architecture

System DesignDistributed SystemsEnterprise Architecture

Featured Work

Projects and things I've built. Real work on real problems.

Hirerkey — Workplace Intelligence Platform

Built the core architecture for a modern AI-based Human Capital Management platform. Designed the infrastructure using Java and Node.js, and integrated RAG pipelines to automate complex HR workflows.

Noisiv Consulting

Architected backend infrastructure for enterprise clients that processes millions of requests a day. Focused heavily on database schema optimization and implementing robust message queues to drop latency and guarantee 99.9% uptime.

Qid — India's #1 ID Gateway

Led the engineering team to build a secure digital check-in gateway processing 100,000+ verifications. The biggest challenge was ensuring real-time data sync in low-bandwidth environments, which we solved using an offline-first architecture and aggressive Redis caching.

Technical writing

Thoughts on engineering, performance, and building products.

Feb 18, 2026

RAG Pipelines Explained: Building AI That Actually Knows Your Data

A practical guide to building RAG (Retrieval-Augmented Generation) pipelines. Covers embeddings, vector databases, chunking strategies, prompt engineering, and production patterns for building AI systems grounded in your own data.

Feb 1, 2026

Scaling Node.js: From Single Server to Handling Millions of Requests

A complete guide to scaling Node.js applications in production. Covers Node.js clustering, horizontal scaling, load balancing with Nginx, Redis caching, worker threads, and monitoring strategies with real-world examples.

Jan 10, 2026

Docker in Production: Lessons I Learned the Hard Way

Practical guide to running Docker in production. Covers image optimization, multi-stage builds, security hardening, health checks, logging, and orchestration patterns from real-world experience.

Hi, I'm .css-146i9hu{background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;}Subhadeep

I'm a Full Stack Engineer

0+

0+

0.9%

0M+

What I work with

Featured Work

Hirerkey — Workplace Intelligence Platform

Noisiv Consulting

Qid — India's #1 ID Gateway

Technical writing

RAG Pipelines Explained: Building AI That Actually Knows Your Data

Scaling Node.js: From Single Server to Handling Millions of Requests

Docker in Production: Lessons I Learned the Hard Way

Hi, I'm Subhadeep