Hire a MERN Stack Developer
I'm a senior MERN developer who ships full applications — React on the front, Node/Express (and NestJS) APIs on the back, MongoDB or PostgreSQL for data — end to end, with production experience across payments, analytics and multi-tenant SaaS. One owner for the whole JavaScript/TypeScript stack.
MERN is a good default for moving fast in one language across the stack. I bring the senior judgment that keeps that speed from turning into a mess: typed contracts, a real data model, auth and jobs done properly, and a frontend that stays fast as it grows. Where PostgreSQL fits better than Mongo, I'll say so.
What you get
- React / TypeScript frontends and dashboards
- Node.js / Express / NestJS REST APIs with typed contracts
- MongoDB or PostgreSQL data modeling (I recommend the right one for your case)
- Auth, RBAC, background jobs, payments and webhooks
- Deployment, CI/CD and production hardening
How I work
MERN's 'M' is a default, not a law. I choose MongoDB or PostgreSQL based on your access patterns and consistency needs, and explain the trade-off.
TypeScript from the API to the UI so the whole stack shares contracts and refactors stay safe.
Get a working slice in front of users quickly, then add the observability, tests and security pass that make it production-grade.
Six years across the JavaScript/TypeScript stack — MERN and Next.js/NestJS — shipping production products: multi-tenant SaaS (Paylio), payment analytics (iBoardingPass), multi-currency commerce (E-Vignettes) and multi-country platforms (Taxi.club). Currently leading a five-person team across nine products.
Tech stack
Related work
FAQ
Do you use MongoDB or PostgreSQL?
Whichever fits. Mongo is great for flexible, document-shaped data; PostgreSQL wins when you need relations, transactions and strong consistency — which most SaaS billing and multi-tenant data does. I'll recommend based on your access patterns, not habit.
Is MERN the right choice for my product?
For a lot of web apps and MVPs, yes — one language across the stack means faster iteration and easier hiring. I'll tell you honestly if your case is better served by Next.js full-stack or a NestJS backend instead.
Can you take a MERN app from prototype to production?
That's the common ask. I add the parts prototypes skip — real auth, tenant isolation, tested webhooks, error monitoring and CI/CD — without throwing away the working code.