Featured Project
TripFlow
AI-assisted travel planner with real-time collaboration and offline mode, built on event-driven Spring Boot microservices.
Software Engineer · MadridDiego
Diego
Sánchez
Software Engineer focused on backend engineering, software architecture, distributed systems and cloud. Currently at Génexys, designing microservices with Python, FastAPI & AWS. BSc in Software Engineering from URJC.
01
Experience
Full-Stack Developer
Génexys Technology
Full-time
Feb 2026 - Present
Responsible for the platform's entire backend, from microservices to shared libraries, built with Python, FastAPI and AWS. I also take part in technical decision-making and in defining development and architecture standards.
- Build event-driven communication with SQS/SNS in the backend and Greengrass IPC on NVIDIA Jetson edge devices.
- Design and implement offline navigation as an embedded Greengrass component, based on Valhalla routing and MapLibre vector maps, for environments with limited connectivity.
- Design agentic, automated development workflows with Claude Code, specialized agents and reusable skills to streamline engineering processes.
Full-Stack Developer
Telefónica Innovación Digital
Internship
Jul 2025 - Dec 2025
Contributed to the development and optimization of web applications with Next.js within the Mística Design System, focusing on accessibility, SEO and performance.
- Implemented accessibility (WCAG) and SEO improvements across digital products.
- Built a full-stack tool (React, Express, MongoDB) to automate technical audits.
- Ran technical audits and Web Performance Optimization (WPO) in agile teams.
02
Selected Work
Other projects
- NoteHubLightweight platform that lets you view Markdown notes directly from GitHub repositories, with a clean interface adaptable to any device.Next.js · TypeScript · GitHub API
- SaveXA platform that allows users to compare the prices of products between different supermarkets.Spring Boot · Angular · MySQL · Docker
- Bits of BattleA 1vs1 game to play locally with a friend using the same keyboard. Built for La Hackathon del Dev.React · JavaScript · HTML
- DJ SanzPortfolio website for DJ Sanz, with a clean and modern interface adaptable to any device.Next.js · React · TypeScript
03
About
Software Engineer focused on backend engineering, software architecture, distributed systems, and cloud technologies.
Currently at Génexys, I contribute to the design and development of microservices-based solutions using Python, FastAPI, and AWS. My work involves technical and architectural decision-making, event-driven systems, cloud solutions, and the development of scalable services.
Interested in building reliable systems, solving complex engineering problems, and continuously improving the way software is designed and developed.
04
Writing
Apr 2026
Read all posts →TripFlow v1.0.0: Collaborative Travel, Maps and Offline Access
TripFlow v1.0.0 closes the Advanced Features V2 milestone with collaborative itineraries, secure share links, interactive maps, offline-first access, and PDF export.
Mar 2026YAGNI in Practice
Stop over-engineering for a future that hasn't arrived. Learn the practical side of YAGNI (You Ain't Gonna Need It) and how to save your team from the 'Maintenance Tax' of speculative code.