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EngineeringProduct Engineering

The product around the model, built to last.

Interfaces, APIs and mobile apps people use every day. Designers and engineers in one squad, your team inside it, and the source in your hands when we finish.

2 wks
To a clickable prototype real users can react to
6-8 wks
Typical first release to production
100%
Source, pipelines and documentation handed over
Day 1
Your engineers sit inside the squad
Scope of practice

What the work actually involves.

Shape

Discovery and design

We find the version worth building before the expensive part starts, with prototypes in front of users early.

Problem framing and success metric
Interface design and prototypes
Accessibility and content standards
Scope cut to a first release that ships
Build

Web, mobile and APIs

Products built to your stack and your conventions, so the code reads like something your team wrote.

React and TypeScript front ends
Mobile with React Native or native where it matters
API design, versioning and integration
AI features wired to governed model access
Assure

Testing and release

Releases should be unremarkable. Automation and staged rollout are what make them so.

Unit, integration and end-to-end suites
Performance and load testing
Feature flags and progressive rollout
Error budgets and on-call runbooks
Hand over

Ownership transfer

The engagement ends properly: your team is running the product and we are a phone call, not a dependency.

Documentation written for the next engineer
Pairing and walkthroughs before exit
Backlog and known issues stated plainly
Optional support period on a fixed term
Why Zitrino

Principles we hold to on the hard engagements too.

One squad, not two
No specification thrown over a wall. The designer and the engineer sit in the same review.
Small releases, often
Shipping weekly keeps scope honest and makes the first production date real rather than aspirational.
Built for the person using it
We design for someone under time pressure with a queue behind them, not for a demo audience.
You own everything
Source, infrastructure definitions and documentation transfer at the end. No licence to keep using your own product.
Technology

Tools we engineer with.

Opinionated about patterns, not vendors. The right architecture for a workload matters more than a preferred logo, and we say so when a cheaper option will do.

Front end
ReactTypeScriptNext.jsTailwindReact Native
Back end
NodePython.NETJavaGraphQL and REST
Quality
PlaywrightVitestCypressk6SonarQube
Delivery
GitHubAzure DevOpsDockerVercelKubernetes

Have a product in mind?

Send us the rough idea. We will come back with a first release we think is worth building and what it takes to get there.

Talk to our team