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Hi, I'm Saikat Dey — Software Engineer.

Software Engineer who likes building things that actually work — from production platform features to AI systems. Experienced with

Typescript

,

Node.js

,

PostgreSQL

, and

Next.js

.

Featured

Experience

Cognizant

Cognizant

Working

Programmer Analyst

Jul 2024 - Present

Kolkata, India

Technologies

• Developed and maintained 10+ Node.js REST endpoints for enterprise healthcare an....see more

• Developed and maintained 10+ Node.js REST endpoints for enterprise healthcare and insurance workflows, implementing request validation, error handling, and frontend-facing response contracts.

• Built React data workflows handling 2,000+ records, with server-side filtering, sorting, pagination, and CSV export backed by REST APIs.

• Integrated 2 third-party services into Node.js workflows, normalizing external API responses into application-specific data consumed by React clients.

• Implemented JWT authentication and role-based access control across 3 user roles, protecting API routes and corresponding frontend workflows.

• Configured GitHub Actions CI pipelines with 50+ automated API/UI checks, providing repeatable validation on pull requests and application releases.

Cognizant

Cognizant

Programmer Analyst Trainee

Dec 2023 - Apr 2024

Hyderabad, India

Technologies

• Ramp-up to production contribution in under four months — shipped working service ....see more

• Ramp-up to production contribution in under four months — shipped working service integrations during onboarding across Node.js, REST APIs, and JavaScript (ES6+).

Featured

Projects

TauCode - the agent that remembers

An agentic coding CLI like Claude Code and OpenCode.

Technologies

All Systems Operational
View Details
RagXplorer - rag that doesn't hallucinate

A hybrid retrieval architecture combining vector similarity, BM25 ranking, and HNSW indexing via pgvector for high-precision document retrieval.

Technologies

All Systems Operational
View Details
microGPT for Music

A tiny GPT that learns to compose melodies. Pure Python, zero dependencies, one file, with its own autograd engine, transformer and MIDI writer.

Technologies

All Systems Operational
View Details
Agentix - the visual regression agent

An agentic tool using Node.js, TypeScript, LangChain, and GPT-4o vision to diagnose frontend UI regressions from source code and screenshots.

Technologies

All Systems Operational
View Details

About

Me

About

Saikat Dey

Software Engineer who likes building things that actually work — from production platform features to AI systems he builds on the side. Gets into the details, ships clean code, and occasionally fixes other people's open-source bugs too.

Skills

Featured

Blogs

Building a React Clone From Scratch: oveReact

Building a React Clone From Scratch: oveReact

Understanding how React works under the hood by building a custom Virtual DOM, Diffing Engine, and Hooks system in TypeScript.

frontendreacttypescript+1 more
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Building JavaScript Utilities From Scratch

Building JavaScript Utilities From Scratch

A mental model for frontend utility problems like debounce, throttle, and Promise.all

frontenddevelopmentjavascript+1 more
Read More

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