Web Mobile

Senior web & mobile development

Complex, fast interfaces and polished mobile apps, built by senior engineers on proven stacks.

01The need

You need a web or mobile app that holds up: fast, maintainable, pleasant to use. Not a cobbled-together template. We design and build the interface and the back-end alike, with a real eye for UX detail and code quality.

02What we build

Web applications (React, Angular)
Mobile applications (React Native, Flutter)
Polished UX-UI design
API and back-end (NestJS, Spring Boot)
Offline-first and real-time when needed
Testing, performance and accessibility

03How we work

We choose the technology to fit your actual need, not the latest trend. The care we put into the interface is often what makes the difference: our applications are tastefully designed and genuinely enjoyed by users. The code is tested, documented and ready to grow.

04How we work with you

We start from your need, not from an imposed stack. If you already have mockups or a design system, we build on them; if not, we design the UX-UI with you, alongside development. The scope is framed in a few weeks, and the first call is free.

Then we deliver in increments, with regular demos: you watch the web or mobile app actually take shape, and you adjust along the way. The code is tested and documented as it is written, not at the end. We support the move to production, on AWS and CI/CD, through to store deployment when it comes to mobile.

05What you get

An application that holds up in real use, and everything you need to keep it running without us. In concrete terms:

A fast, polished web interface or mobile app that's pleasant to use
Clean, tested and documented code, ready to grow
Store deployment and the move to production, with hands-on support
Genuine attention to performance and accessibility
The code, the accesses and the documentation, entirely yours, with no lock-in

06When to call us

You don't need a finished spec to talk to us. Describe your situation and we come back within 48 h with a detailed quote. These signals come up often:

You need both web and mobile, and you want one consistent team
An existing app to rebuild, gone slow or hard to maintain
A tight time-to-market: you need to ship a first version fast and well

A concrete example

CAS-003

Web & Mobile Healthcare

Aexmed: Field healthcare platform

Structuring medical intervention management, from case creation to invoicing.

React Native
NestJS
Web

View case study

Frequently asked questions

Web and mobile, is it the same team?

Yes. The same senior engineers build the web interface, the mobile app and the back-end. You keep a single point of contact, Adrien, and consistent logic across platforms. No hand-offs between three vendors passing the buck.

React Native, Flutter or native: how do we choose?

We choose to fit your actual need, not the latest trend. For most apps, React Native or Flutter cover iOS and Android from a single codebase, which lowers costs. Native still makes sense when you need heavy graphics performance or very specific system APIs. We decide together on the first call, based on your scope.

Do you handle the UX-UI design?

Yes. The care we put into the interface is often what makes the difference: our apps are tastefully designed and genuinely enjoyed by users. If you already have mockups or a design system, we start from there. If not, we design the UX-UI with you, alongside development.

Can you do offline-first apps?

Yes, when your use case calls for it. An offline-first app stays usable without a network and syncs data once the connection returns, for instance with SQLite on mobile. It helps in the field or on the move. We assess together whether your case truly needs it, since it adds complexity.

How far does the support go, from design to production?

From design to production, and beyond if you want. We design, build and test, then support the deployment and the knowledge transfer. The code, the accesses and the documentation are entirely yours: no lock-in. Ongoing support stays possible depending on your context.

Let's build your application.

Describe your need: we come back with a tech approach and an estimate.

Book a call