Mayank Saini

//experience

Experience

Sayzo

Feb 2026 – Present

Founding Engineer

Owning technical direction as a founding engineer — architecture, data model, and delivery for a 0→1 hyperlocal task marketplace.
Running the production surface end to end: deploys, monitoring, and security hardening as usage scales.

BuitX

Dec 2025 – Feb 2026

Lead Developer

Led end-to-end development of client web applications from requirement gathering to deployment.
Built responsive interfaces with Next.js + Tailwind and backend logic with Node.js + Express.
Integrated JWT authentication and managed MongoDB/PostgreSQL database systems.
Managed deployment workflows using Git, GitHub, and AWS.

ALIGN

Sep 2025 – Nov 2025

Frontend Developer

Improved page load performance by 25% for core interfaces.
Converted Figma inputs into production-ready React components.
Coordinated with backend teams to clarify schema requirements.

Projects

Around-U

Finding a trusted electrician or plumber near you still runs on word of mouth. Around-U makes verified blue-collar workers searchable by pincode, so local talent gets hired locally.

Next.jsTypeScriptNode.jsExpressMongoDB

Kharcha

Most expense trackers hand you charts and leave you to read them. Kharcha logs your spending and uses Claude to explain what actually changed month to month.

Next.jsTypeScriptTailwindShadcn UIZustandPostgreSQL

Life OS

Habit tracking falls apart the moment logging feels like work. Life OS keeps it to one daily check-in, with Google sign-in and sessions that hold so a streak never dies to a logout.

ReactNode.jsExpressMongoDB

CodeGuard

Git-native AI PR reviewer built on the GitAgent standard. Every rule is a version-controlled file — fork it, edit SOUL.md and skills/, and diff the reviewer's behavior like any codebase.

TypeScriptNode.jsGit

Writing

Understanding MVC Architecture — The Easiest Explanation You Will Ever Read

If you've ever opened a coding textbook and felt confused by words like Model, View, and...

Dec 12, 2025•5 min read

Understanding MVC Architecture — The Easiest Explanation You Will Ever Read

Why did Facebook engineers create React?

Back in the early 2010s, Facebook engineers faced a huge challenge...

Dec 10, 2025•3 min read

Why did Facebook engineers create React?

Why REACT Is The Best?

History of React? React is a JavaScript library for building the...

Dec 08, 2025•4 min read

Now

BuildingSayzo — hyperlocal task marketplace

ReadingBuild Don't Talk — Raj Shamani

LearningSystem design & distributed systems

About

Me

I build and ship production software end to end — architecture, APIs, and the interface layer. Currently Founding Engineer at Sayzo, where I own a hyperlocal task marketplace across the stack with Next.js, TypeScript, Node.js, and Go. I care about systems that hold up under real traffic and products that earn the people using them.

Skills