[01]
Product & frontend
I build web interfaces starting from real product needs. I care about design, requirements and implementation evolving together, rather than treating the frontend as an isolated layer.
01 // Software Engineer
joseagus@cadiz:~$whoami
→ José Agustín Cabrera Castillo
Software
engineer
I build software with the whole system in mind: requirements, implementation, integration, testing and maintenance.
- Python · REST APIs
- Web development
- Mission-critical systems
- STATUS
- Software Engineer @ Ghenova Digital
- BASE
- Trebujena, Cádiz · ES
- FOCUS
- Python · REST · Web
- LANG
- ES · EN · IT
02 // About
$ cat about.md
Who's behind the code
I started out in software building web products and, over time, ended up working on systems where technical decisions carry far more weight than just getting something to work.
I'm a software engineer, and I particularly enjoy understanding systems end to end: what problem we are solving, how the software should behave, how to structure it, and what we need in order to maintain it once it stops being a new project.
I've worked in web development and product, and I'm currently on software projects for highly demanding naval environments. That mix has made me more and more interested in everything that surrounds the code: architecture, requirements, testing, infrastructure and automation.
I keep learning and exploring technologies, but my goal is not to collect them. It is being able to face a system I don't know, understand it and find a good way to build on top of it.
03 // Skills
$ ls ~/stack
What I bring
I work across different layers of the software and at different points in its lifecycle. My goal is not just to implement a feature, but to understand how it fits, how it is validated and how it is maintained afterwards.
[02]
Backend & data
I work with APIs and databases to connect applications, services and persistence. I look for clear contracts between components and data models that are easy to understand and maintain.
[03]
Delivery & automation
I use Git, CI/CD, Docker and automation tools to make building, testing and deploying software a repeatable, controlled process.
[04]
Systems & networking
I have a grounding in Linux, virtualisation, networking and protocols. Understanding what happens beneath the application helps me diagnose problems that don't end in the code.
Software doesn't end with a commit
I take part in different stages of the development cycle: understanding the problem, defining what the system must do, implementing it, validating it and maintaining it once delivered.
- 01
Requirements
- User needs
- SRS & specifications
- Use cases
- Traceability
- 02
Design
- Solution design
- Architecture
- UML modelling
- Interface definition
- 03
Development
- Implementation
- Integration
- Code review
- Version control
- 04
Testing
- Unit tests
- Integration tests
- Validation
- Bug fixing
- 05
Delivery
- Release planning
- CI/CD
- Client demos & validation
- Deployments
- 06
Maintenance
- Support & incidents
- Enhancements
- Refactoring
- Technical documentation
Languages & technologies
Backend & data
Delivery & automation
Systems & networking
Management & documentation
Certifications & languages
- Cisco CCNA Network administration · 2021
- English Trinity College London · ISE I (B1) · 2016
- Italian B1 · Erasmus in Rome
- Spanish Native
- HPS Spanish Personal Security Clearance · pending
// The goal: software another developer can understand, maintain and carry on.
04 // Work
$ ls -la ~/projects
What I've built
Projects I've taken end to end: from gathering requirements with the client through development, launch and the changes that came afterwards.
◆ Academic
WASA Web
Academic project · an Instagram-style social network
An Instagram-style social network built as an academic project, from designing the application to implementing it: a Go backend and a frontend laid out with CSS.
A local project: it never went to production.
05 // Experience
$ git log --graph --oneline
Commit history
Software Engineer @ Ghenova Digital
- Developing software in C++ with the Qt framework for military ships of the Spanish Armed Forces.
- Working on Navantia's national programmes, in the combat systems area.
- Maintaining and evolving mission-critical software, where reliability and code quality are requirements.
- Managing requirements and tasks with IBM's Jazz platform.
- Spanish Personal Security Clearance (HPS) in progress, the accreditation required to work with classified Defence information.
Co-founder · Software Engineer @ Atlansec
- Building modern web solutions, specialising in frontend, and contributing to how the product was defined and evolved.
- Para Procuradores: maintenance and bug fixing on the live platform, built in PHP with Laravel.
- New platform for procuradores and lawyers: migration to a TypeScript stack with Next.js and React on the frontend, an Express API with Drizzle ORM over MySQL, and NextAuth for authentication.
- Turborepo + pnpm monorepo: portals for procuradores and lawyers, an admin panel, the API and a React Native mobile app, plus tests with Vitest and Playwright.
- Requirements gathering with the client, and organising work and issues in YouTrack.
- GIEQs: a web platform for the medical and education sector.
Erasmus @ Sapienza · Università di Roma
- Exchange academic year in Rome, studying at another university and in another language.
- Reached a B1 level of Italian during the stay.
- Several course projects that sparked my urge to dig deeper into computing.
Cisco CCNA · Network administration
Computer Engineering @ Universidad de Cádiz
High school (Bachillerato) @ I.E.S. Alventus, Trebujena
Initial commit.
06 // Contact
$ ssh joseagus@cabrera
Open a connection
Got a project, a role, or just want to talk software? Drop me a line and I'll get back to you as soon as I can.
$ssh joseagus@cabrera
Connecting to Trebujena, Cádiz…
Handshake · ECDHE-ED25519 · OK
✔ Connection established. Channel open to new opportunities.
Type a command or click one below. Start with help.