Available for projects

JUAN DORADO

Software Engineer · 25+ years of experience

Turning ideas into technological solutions
robust and scalable.

Explore Skills Download CV

// expertise

Tech Stack

Technologies mastered across more than two decades of professional software development

backend.java

⚙️

Backend

EXPERT

25+ yrs

Java/Spring expert with Event Sourcing and Axon Framework. High-performance APIs and mission-critical systems.

LEVEL 100%

JavaSpring BootEvent SourcingAxon FrameworkSpring SecurityPostgreSQLMongoDBOracleRabbitMQREST & GraphQL

architecture.yml

🏗️

Arquitectura

EXPERT

20+ yrs

High-availability distributed systems with Event-Driven Architecture and container orchestration.

LEVEL 90%

MicroservicesEvent-DrivenDDDDockerKubernetesOpenShiftAWSCI/CDPrometheusGrafana

frontend.tsx

🎨

Frontend

ADVANCED

10+ yrs

Web and desktop applications with Angular, React and Electron. Focus on performance and user experience.

LEVEL 70%

AngularReact.jsTypeScriptRxJSElectronTailwind CSS

// journey

Experience

25 years building software across banking, industry, aerospace and healthcare

2021 – Present

ysura GmbH

Senior Backend Developer

Pharma CRM for information management in the pharmaceutical sector · Munich, Remote

99.9% availability · Event Sourcing (Axon) · <200ms response time · -25% resource consumption

2019 – 2021

Deimos Space

Senior Backend Developer

Real-time traffic management platform for the National Railway Network · Málaga

+90% operational efficiency · -40% infra costs · thousands of req/sec via RabbitMQ

2017 – 2019

rindus GmbH

Senior Software Developer

Software development for international clients across multiple industries · Nearshore · Málaga

Scalable solutions for international clients · Docker containerization · Agile/Scrum delivery

2016 – 2017

Caterpillar Inc.

Senior Backend Developer

High-performance data ingestion system for global customer operations · Málaga

Critical Java/Spring Boot services · SQL Server · strict industrial standards · remote teams

2008 – 2016

Consulting

Java Software Engineer

Full Stack web development across multiple industries and consultancy firms · Madrid & Málaga

Java J2EE/Spring · Oracle & SQL · high adaptability across business domains

2000 – 2008

Santander Bank

Team Lead / Senior Java Analyst

Treasury Web Application for Sales, Risk and Banking departments · Madrid

Team Lead of 5 developers · full SDLC ownership · Java J2EE & Oracle

// side projects

Projects

Personal experiments and open-source work built outside of client engagements

MyFoodMap.tsx

MyFoodMap

Mobile App

TypeScript 95%

Cross-platform mobile application for discovering and managing restaurants on an interactive map. Features user profiles, restaurant details, and admin panel for content management.

› Interactive map with restaurant markers and location services
› User authentication and profile management with Supabase
› Restaurant details with photos, ratings and contact info
› Admin panel for CRUD operations on restaurants
› Offline-capable with local storage and optimistic updates

NewsAggregator.java

News Aggregator

Reactive API

Java 100%

Reactive REST API that queries HackerNews, Reddit and Dev.to in parallel, merges the results with Reactor streams and delivers a single feed sorted by date. Each source has independent circuit breaker protection.

› Parallel querying across 3 independent news sources
› Circuit breaker per source — opens after >50% failure rate
› Exponential backoff retry logic with up to 3 attempts
› Filter by source and article limit (max 25)
› Health endpoint exposing real-time circuit breaker states