Seville · Since 1995

We do software engineering. Since 1995. And we're still here.

Mission-critical clinical systems, healthcare data, enterprise SaaS platforms · HaaS. Different verticals, same rigour.

The most demanding accreditations in the Spanish public sector. Audited, not self-declared. Multicloud. 100% remote.

Few suppliers reach here. For us it was always the place we wanted to get to.

ENS Alto level ISO 27001 ISO/IEC 33000
In production

Public healthcare, at scale, for decades.

9.858.942
people treated
current population under coverage
35
hospitals
4
Health Agencies
37
districts
147.000
active healthcare professionals
Since 1995

More than thirty years doing only what we know how to do.

In 1995 we developed our first system for Servicio Andaluz de Salud. We haven't changed clients since then — we've grown with them.

A small company that lasts three decades doesn't do it by luck. It does it because the software it builds remains useful long after delivery. That's how we work in clinical data, AI integration and enterprise SaaS platforms too.

Accreditations

Three accreditations that underpin how we work.

ISO/IEC 33000

Software process quality

An external auditor reviews how we develop and certifies that we meet the international standard. What we deliver is traceable, repeatable and measurable.

Vista previa del certificado ISO/IEC 33000 Download PDF
ISO 27001

Information security

The international reference standard for security management. Technical and organisational controls audited annually by a third party.

Vista previa del certificado ISO 27001 Download PDF
ENS Alto level

Esquema Nacional de Seguridad

The most demanding category in Spanish public administration for providers handling sensitive information. We cover it across the entire lifecycle, not just production.

Vista previa del certificado ENS Nivel Alto Download PDF
Culture and team

A cared-for team, a stable team.

100% remote since 2019 REDI · inclusion by conviction Partnerships with universities and vocational colleges

We work with people who like doing things well — serious engineering, real clients, problems that matter. We're a small company, and it shows: the team is stable and every person has real weight in what we build.

We've been 100% remote since 2019, inclusive by conviction and part of REDI. We maintain work-placement agreements with universities and vocational training centres because we believe that supporting those starting out well is as important as looking after those with years of experience. And so talent stays with us.

We look after working conditions because a comfortable team is a team that lasts — and lasting is part of how we do our work well.

If this sounds good to you, we'd love to meet you.

Get to know GESI as a place to work

Shall we talk??

Tell us what your organisation needs. No automated forms, no bots. Someone from the team always responds to you.