Senior full stack engineering, shipped every week.

Flazex provides senior full stack engineering for startups, building frontends, APIs, databases and infrastructure in TypeScript, React and Next.js, or inside your existing stack.

Book a free call

Weekly sprints with a demo of working software every week

checkout.tsschema.prisma
1export async function createCheckout(user) {
2 const session = await stripe.checkout.create({
3 customer: user.stripeId,
4 mode: "subscription",
5 });
6 return session.url;
7}
✓ Tests passed · deployed to production

What it can do.

React and Next.jsTypeScript everywhereREST and GraphQL APIsPostgres data modelingAuth and permissionsPayments integrationReal-time collaborationOffline syncBackground jobsAutomated testingCI and deploysPerformance tuning

Built with

TypeScript/React/Next.js/Node.js/Postgres/Tailwind CSS/Vercel/GitHub Actions

What you get.

  1. 01

    Frontend

    React and Next.js interfaces that load fast and work well on every screen size.

  2. 02

    Backend and APIs

    APIs, auth, payments and background jobs with clean, documented architecture.

  3. 03

    Data and real-time

    Database design, migrations and real-time sync where users need to see changes as they happen.

  4. 04

    Infrastructure and CI

    Environments, deploys, monitoring and CI set up so shipping stays fast as the team grows.

  5. 05

    Performance and testing

    Core Web Vitals, caching and automated tests handled as part of the build, not after complaints.

  6. 06

    Docs and handover

    Architecture notes, setup guides and a clean repo your next engineer can pick up quickly.

Plotra preview

Built by Flazex

Plotra

A writing studio where a novel's manuscript, characters, timeline and lore stay linked, with real-time co-writing. Designed and built end-to-end, launching soon.

Read the case study

What usually goes wrong, and what we do instead.

  1. 01

    Your prototype got you users but now every new feature breaks something else.

    We refactor the weak spots and add tests and types so changes stop causing regressions.

  2. 02

    Your roadmap is full and you cannot hire senior engineers fast enough.

    A senior builder joins in weekly sprints and ships features from the first week.

  3. 03

    Pages are slow and the app struggles as usage grows.

    We profile the real bottlenecks and fix queries, caching and bundle size where it counts.

How we'll build it.

  1. Step 1

    Codebase review

    We read your repo, or plan the architecture for a new one, and agree scope and milestones in writing.

  2. Step 2

    Set up the rails

    Types, linting, CI and preview deploys go in first so every change after that is safe to ship.

  3. Step 3

    Weekly sprints

    We ship features each week behind reviews, with a demo of working software at the end of every sprint.

  4. Step 4

    Handover

    We document the architecture and setup so your team, or the next hire, can keep shipping.

Who it's for.

  • Startups that need senior engineering without hiring a full team
  • Founders with a live product and a backlog of features to ship
  • Teams replacing a fragile prototype with a production codebase

Questions about full stack engineering

Usually TypeScript, React and Next.js with a modern backend and a managed database like Postgres, hosted on Vercel. We work in your existing stack when that is the better choice.

Often paired with

Ready to ship something great?

30 minutes today. A clear plan tomorrow. A shipped product in weeks. Only 2 build slots open for November.

Book a free callsudhan@flazex.com

Free 30-min call. No pitch deck, no obligation. Typical reply in 12 hours.