Backend systems
Services and integrations built for clear behaviour and maintainable evolution.
Jose Alberto Lorenzo · Software engineer in Barcelona
Software systems that stay understandable under pressure.
I work across backend and web platforms, with a practical focus on reliability, maintainability and the people who operate them.
How I work
Engineering that makes the next change safer.
I value clear boundaries, useful documentation and small decisions that reduce operational friction over time.
Web platforms
Fast, accessible interfaces that support the product instead of competing with it.
Reliability & security
Careful attention to the operating context, dependencies and risk surface.
Working stack
Technology in service of the system.
A compact view of the tools I use across backend, infrastructure and web delivery.
- Java
- Spring Boot
- Docker
- Kubernetes
- PostgreSQL
- AWS
- Linux
- Astro
Experience
Backend, platforms and operational context.
Editorial draft based on previous roles; titles, dates and technology should be confirmed before publication.
November 2022 — Present
MANGO
Java Software Developer · Remote
Java software development.
February 2022 — September 2022
Amaris Consulting
Java Developer · Client: Orizon · Remote
Developed data ETL processes using SMF and CSV files with Spring Cloud Data Flow, covering stream and batch processing.
May 2021 — February 2022
Zitro
Java Developer · Sant Quirze del Vallès, Catalonia, Spain
Java software development.
May 2019 — May 2021
NexTReT
Full-stack developer
Supporting platform and publishing engineering teams, with a focus on backend services and web delivery.
January 2019 — May 2019
Activex Informáticos
Developer
Contributed to streaming and backend development projects using Java, Spring, Hibernate and Oracle.
July 2018 — January 2019
Deloitte
Operational Risk Advisory
Reviewed security vulnerabilities and worked with the tools used to manage their lifecycle.
December 2017 — July 2018
Witeklab
Backend developer
Developed Python software for communication and interaction between Pycom devices.
Selected work
Short cases, grounded in the work.
Draft case studies based on existing projects. The specific scope, stack and impact are ready for review before publication.
Web application · DAW final project
Local Torrent
- Challenge
- A final web-development project that needed a complete, usable product scope.
- Solution
- Designed and delivered a web application as an end-to-end development project.
- Architecture
- Web application
- Stack
- Web development
- Impact
- A complete project used to demonstrate applied web-development practice.
Proof of concept · Services marketplace
EventiumBCN
- Challenge
- Connect event-sector professionals with clients looking for their services.
- Solution
- Built a proof-of-concept platform organised around service requests and credits.
- Architecture
- Marketplace web platform
- Stack
- Web platform
- Impact
- Made the request flow and professional discovery central to the product.
Personal website · WordPress
Miriam Valera
- Challenge
- Create a focused personal web presence that is easy to maintain.
- Solution
- Delivered a WordPress-based personal site tailored to the client’s content.
- Architecture
- CMS website
- Stack
- WordPress
- Impact
- Provided an editable home for the client’s professional presence.
Website improvement · Accessibility
Full4media
- Challenge
- Bring an existing website closer to accessibility standards.
- Solution
- Reworked the site to improve its conformance with accessibility requirements.
- Architecture
- Existing web platform
- Stack
- Web accessibility
- Impact
- Improved the site’s accessibility baseline for a broader audience.
Contact
Have a system that needs a steady hand?
I am open to conversations about backend engineering, reliable platforms and web systems.
Message me on LinkedInInitial contact is via LinkedIn.