About

An engineering practice, not an agency disguise.

Wallion builds custom software for businesses: applications, automation, MVPs, internal tools, cloud solutions, consulting, and staffing. One service, one stack, one lead. The company was born guiding businesses through their digital transformation—the sherpa spirit lives on in how we work, not in our name.

Each build uses the same stack, the same hosting, the same monitoring, and the same deployment pipeline. This discipline is what allows us to promise fixed prices and deliveries in weeks, not quarters.

How we work

01

A single stack

Next.js, TypeScript, hosting, monitoring. Nothing exotic, everything maintained.

02

Scope closed, in writing

The Diagnostic process produces a scope document. That document is the contract.

03

Weekly visibility

You see progress every week — software in action, not status presentations.

04

Support during business hours

What can never fail runs on third-party managed services.

WHO ANSWERS

You'll always know who's responsible.

Wallion is run by its founder: the person who defines the project is responsible for its success. No account managers, no transfers, no ghost teams.

Oscar has 14 years of experience with React, Node.js, TypeScript, and AWS, most recently leading several teams simultaneously. His studio sells custom software at a fixed price, delivered in weeks. He uses the same approach when the product needs to handle less powerful hardware or a large workforce.

What he has already delivered:

  • •Frontend of TitanOS, the independent Linux system powering the Philips 2026 range. 18 million users in Europe. UI on TVs with less powerful hardware.
  • •Multi-agent AI assistant (RAG, LLM, Python and React) at Opella / Sanofi, for 11,000 employees.
  • •Paramount+ platform for set-top boxes on Accedo, where performance rules.
  • •TV apps on Tizen, webOS and Vizio (Magellan TV and set-top box platforms in the UK).

Barcelona. The assignment ends here; it will not be passed on to another team.

Thirty minutes. No sales pitch, just a diagnosis.

Tell us what's wrong. We'll tell you if custom software can fix it — and exactly how much it would cost.