Software Engineer · Madrid

Diego
Sánchez

Software Engineer focused on software architecture, distributed systems and cloud. Currently at Génexys, building microservices with Python, FastAPI & AWS. Recently graduated in Software Engineering at URJC.

Experience

Full-Stack Developer

Génexys Technology

Full-time

Feb 2026 — Present

I contribute to the design and development of microservice-based solutions, supporting the evolution of the platform and the delivery of scalable cloud-native services.

Develop and maintain backend services with Python and FastAPI.
Design and implement cloud solutions deployed on AWS.
Take part in technical discussions on system architecture and platform evolution.

PythonFastAPIAWSMicroservices

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.

Next.jsReactSEOWCAG

Selected Work

Bachelor's Thesis

TripFlow

AI-assisted travel planner with real-time collaboration and an offline mode, on a Spring Boot microservices backend with a React frontend. Designed end-to-end and shipped as my Bachelor's Thesis.

Spring BootReactTypeScriptPostgreSQLDocker

GitHub

NoteHub

Lightweight platform that lets you view Markdown notes directly from GitHub repositories, with a clean interface adaptable to any device.

Next.jsTypeScriptGitHub API

SaveX

A platform that allows users to compare the prices of products between different supermarkets.

Spring BootAngularMySQLDocker

Bits of Battle

A 1vs1 game to play locally with a friend using the same keyboard. Built for La Hackathon del Dev.

ReactJavaScriptHTML

DJ Sanz

Portfolio website for DJ Sanz, with a clean and modern interface adaptable to any device.

Next.jsReactTypeScript

MiniShell

Simplified Unix/Linux shell built in C that emulates the behavior of a native terminal.

CLinuxTerminal

Wallapop Scrapper

A simple Wallapop scraping integration with a Telegram bot.

PythonTeleBotMySQL

About

Software Engineer focused on software architecture, distributed systems, and cloud technologies, with experience in full-stack development and backend engineering.

At Génexys, I contribute to the development of microservices-based solutions using Python, FastAPI, and AWS, while participating in technical discussions and architectural decision-making.

I recently completed my Bachelor's Degree in Software Engineering by designing and shipping TripFlow ✈️, my Bachelor's Thesis (10/10): an AI-assisted travel planner with real-time collaboration and offline mode.

Writing

Apr 2026

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.

TripFlowTravelReact

Mar 2026

YAGNI 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.

ArchitectureEngineeringBackend

Read all posts →