Zerokai

Discipline

Web apps that load fast, hold up under pressure, and look the part.

From marketing sites to complex SaaS dashboards - we build for real users, real traffic, and real business outcomes. No bloated boilerplate, no over-engineered architecture for an audience of twelve.

What you get

  • A production-grade application you fully own - code, infra, and all
  • Sub-second load times and a Lighthouse score worth showing clients
  • Accessible, responsive UI that works across every browser and device
  • Authentication, payments, and third-party integrations done right
  • Automated CI/CD so your team ships with confidence, not ceremony
  • Written documentation and a runbook - no black boxes handed over

Right for you if ...

Not sure this is the right engagement? Book a free 30-min call and we will tell you honestly.

  • 01

    You are launching a new SaaS, marketplace, or content product

  • 02

    Your existing site is slow, outdated, or hard for your team to change

  • 03

    You need a web app that handles real users, real data, and real integrations

  • 04

    You want design and engineering owned by one team, not handed off between agencies

What we build

Marketing & content sites

Fast, conversion-optimised sites with great CMS integration. Built to rank, built to sell.

SaaS dashboards

Complex data-heavy interfaces: tables, charts, real-time updates, multi-tenancy, role-based access. We've done it before.

E-commerce & storefronts

Headless commerce, custom checkout flows, inventory systems. We work with Shopify, WooCommerce, and bespoke setups.

Internal tools & admin panels

The software your team actually uses every day. Fast to build, fast to change, and actually pleasant to work with.

API design & backend systems

REST, GraphQL, background jobs, queues, webhooks. We build the backend your frontend deserves.

Performance & accessibility audits

We identify what's slow, what's broken for screen readers, and give you a prioritised fix list with real effort estimates.

The stack we reach for

We pick tools to fit the project.

Frontend

ReactNext.jsVueNuxtAstroTypeScript

Backend

Node.jsLaravel (PHP)Ruby on RailsGoPython / Django

Database

PostgreSQLMySQLSQLiteRedisSupabase

Deploy

VercelFly.ioRailwayAWSDigitalOcean

How we work

01

Discovery & architecture

We map the user journeys, define the data model, choose the right stack. Nothing is built until the approach is agreed.

02

Design & frontend

We design in the browser. Figma is a communication tool, not the final word. Real components, real data, real interactions.

03

Backend & integrations

API-first development with tests alongside the code. Third-party integrations handled as first-class citizens, not afterthoughts.

04

Launch & hand-off

Production deploy with monitoring set up. A runbook you can actually follow. A 30-day buffer for the inevitable edge cases.

Right-fit packages

Fixed prices. No hidden fees.

Most popular

MVP Sprint

For founders building their first product

$4,9996 weeks

fixed scope · fixed price

  • Discovery & shaping
  • Design + full build
  • Production deploy + handoff
  • Source code + infra you own forever
  • 30-day post-launch fix guarantee

Engineering Retainer

For after your MVP ships

$3,499per month

pause anytime

  • 2 senior engineers on your roadmap
  • Async-first, weekly demos
  • We work in your repo, your conventions
  • 160 engineering hours, capped
  • 1 week notice to pause

Common questions

Ready to ship?

Ready to scope your idea?

30 minutes. We tell you exactly what your MVP needs and what it will cost. No obligation, no pitch deck.

We take 2 new Sprint clients per month. If we're at capacity, we'll tell you on the call and offer a waitlist.