Sep 2026 — Present
Full Stack Developer · CGI
Full-stack development with Java and Angular for a French bank.
Available for opportunities · Daroca, Zaragoza (ES)
Guillermo
Albert García
Backend-first Full Stack Developer·Java/Spring/Angular
I used to sequence data in a lab. Now I turn real problems into software that works.
§ 01
About
// biology → devI treat backend the way I once treated the lab: hypothesis, measure, iterate.
Research left me with a reflex I never dropped: I don't trust a result I can't reproduce. In the lab that meant running the measurement again; here it's a log confirming what I think happened, or a test that fails when it should.
I'm backend-first. I can hold my own on the frontend, but I earn my keep a layer below it: in how the data is modelled and in what happens when more load turns up than anyone planned for.
With agentic AI (Claude Code, MCP) I don't improvise. I write the spec myself, edge cases included, and the agent builds against it. The code then goes through the same gates as anything else: tests, review, monitoring. Whatever doesn't clear them gets rewritten.
§ 02
Experience
// where I've workedMar 2024 — Sep 2026
Full Stack Developer · Inetum
Two platforms for FranceAgriMer, the French public agency under the Ministry of Agriculture, managing aid, subsidies and payments to farmers across France.
- New project (Angular / Spring / JPA): end-to-end transactional flows through to production, from data model to controller, complex business logic and schema evolution with Liquibase.
- Legacy project (JSF / Java 8 / Oracle): maintenance and evolution, JasperReports templates for official documents and 15+ corrective PL/SQL scripts on a production database.
- Continuous quality with SonarQube, JUnit and Angular component tests, in an international team (~10 people) using Agile.
Sep 2023 — Sep 2024
Science Teacher · Lycée Français d'Alicante
Taught science at upper-secondary level (French baccalauréat) in a bilingual French/Spanish environment, alongside starting at Inetum.
2022 — 2024
the pivotWeb App Development (DAW) · IES Mare Nostrum
Two years of full-stack development, databases and deployment. I joined Inetum before finishing the programme.
2016 — 2022
Research & Biology · UA · CSIC · Luomus (Helsinki)
Research at CSIC (Doñana Biological Station) and at Luomus, the Finnish Museum of Natural History (Univ. of Helsinki), with an MSc in Biodiversity (Univ. of Valencia). Sequencing data, measuring biodiversity, and 3 publications, one of them in a peer-reviewed journal.
§ 03
Stack
// tools I reach forsolid tag · I write it by handdashed tag · I use it with AI
LANGUAGES
BACKEND
FRONTEND
DATA
INFRA / DEVOPS
PRACTICES
AI / AGENTS
// method
AI accelerates. Evidence decides.
§ 04
Selected work
// personal projects012026 — Present
AI-powered operations assistant
In production for a real SME
A business application built on LLM APIs: it reads email and voice notes, drafts every reply from the company's own data (self-hosted RAG: the emails never leave its network) and sends nothing without human sign-off.
8,000+ automated tests13,000+ emails in memoryVerifiable human-in-the-loop
Watch the video// video · 1 min
022025 — Present
MAMS — My Athlete Monitoring System
Athlete monitoring platform (AMS)
A backend-first platform for semi-pro clubs and academies: daily wellness and RPE check-ins with a body pain map, a coach dashboard with alerts, and data integrity enforced by the database itself (CHECK, UNIQUE, generated columns).
Multi-level permissions21 REST endpoints
032024 — Present
Proxmox Home Server + Tailscale
Self-hosted infrastructure
My own infrastructure running in production: 9 LXC containers, Python ETL pipelines (Catapult → PostgreSQL + Power BI), a self-built monitoring dashboard, an LLM-assisted pipeline that classifies invoices and extracts their data, and hands-on incident management with encrypted off-site backups.
9 LXC containers115-test pytest suite
§ 05
Publications
// verifiable in one clickSemi‐automated detection of tagged animals from camera trap images using artificial intelligence
doi:10.1111/ibi.13099Teaching Parasitology in Biology Degrees: From Subjects to Principles
doi:10.21125/inted.2022.0726Hormigas del Parque Natural de Serra Gelada y citas interesantes para la mirmecofauna alicantina (Hymenoptera, Formicidae)
Iberomyrmex nº 7 (PDF)§ 06
Contact
// let's talkIf you've got a backend to design, or a system that has to stay up, get in touch.
contact