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Félix Alejandro Rodríguez GuerraFA

Félix Alejandro Rodríguez Guerra

Senior Developer & Tech Lead

€275/day
Madrid, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Félix Alejandro


Hi 👋, I'm Félix.
Software Engineer and Tech Lead/Developer with over 14 years of experience.
Unlike a traditional developer, my approach is not just "writing code and putting out fires." My goal is to build robust, secure, and scalable architectures, delivering real business value. I come from leading critical projects in the high-traffic banking sector, so resilience and security are my priority.

How can I help your project?

1️⃣ Backend Development and Cloud Architecture
I design microservices ready to scale. If you need to migrate a monolith to the cloud or build a platform from scratch, this is my territory.
👉 Stack: Java 17, Spring Boot, Node.js, Apache Kafka.
👉 Patterns: Hexagonal Architecture, DDD, Microservices.
👉 Security: OAuth 2.0 and B2B integrations.

2️⃣ Frontend Development
I have the ability to take a product end-to-end, building modern and efficiently connected interfaces.
👉 Web: SPA development with Angular and React.
👉 Integration: Secure consumption of RESTful APIs and state management.

3️⃣ Hands-on Technical Leadership
I'm not a desk manager. I get my hands dirty with code while guiding the team.
👉 Methodologies: Scrum / Kanban / Scrumban.
👉 Quality: SOLID, Clean Code, Testing (JUnit, Mockito, JMeter).
👉 DevOps: Roadmap definition and CI/CD automation.

4️⃣ The Plus: AI, Data, and Automation
I help you optimize processes by integrating modern solutions to make your business more efficient.
👉 Automation: Workflows and AI Agents (n8n, Make).
👉 Data: Analysis and process automation with Python, Pandas, and FastAPI.

🚀 Extra1: Diploma in Data Science.
🚀 Extra2: Master's in Business Administration and Management.

💪 My philosophy: I get 100% involved. I speak the language of technology as well as the language of business. If you're looking for a proactive professional who communicates clearly and builds software with your company's future in mind, let's talk!
  • Spanish

    Native or bilingual

  • English

    Fluent

  • German

    Conversational

Can work on-site
Madrid (up to 50km)

Experience

  • Santana Red de Negocios SPA
    Strategic Consultant in Digital Transformation and IT Talent
    May 2025 - Today (1 year and 1 month)
    Chile España, Santiago, RM, Chile
    • ➢ Development and Automation of Digital Solutions: Design, development, and optimization of high-impact digital assets, including website development, AI agent integration, and orchestration of automated workflows with leading platforms like N8N and Make.
    • ➢ Backend Development and Automation: Design and implementation of automation scripts and RESTful APIs using Python with FastAPI, Flask for data orchestration and connection with AI Agents.
    • ➢ Data Reporting and Analysis: Creation of dynamic KPI reports and exploratory data analysis (EDA) using Python with Pandas and Matplotlib in Google Colab and Jupyter Notebook environments to support strategic decision-making.
    • ➢ Strategic IT Talent Consulting: I lead the identification and technical screening of high-level talent for critical roles such as DevOps, QA, Full Stack Frontend, and Backend.
    Python FastAPI digital-transformation Node.js agile-project-management
  • Banco de Credito e Inversiones (BCI),
    Senior Tech Lead
    July 2018 - April 2025 (6 years and 9 months)
    Chile
    • ➢ Java Leadership: Management of agile teams of up to 17 people, developing robust microservices in Java 17 with Spring Boot 2.5, Kafka, and Frontend with Angular 12 and Mobile (Android and iOS).
    • ➢ Node.js Backend Development: Led the design of the BFF layer with Node.js 22 and Express, decoupling microservices to optimize response in high-traffic applications.
    • ➢ Quality and Architecture: Ensured standards through Hexagonal Architecture, DDD, SOLID, and CI/CD pipelines with automated tests using JUnit, Mockito, JMeter, and security (OAuth 2.0).
  • Imagemaker
    Software Engineer
    December 2016 - July 2018 (1 year and 7 months)
    Developed and maintained Java systems for Falabella Seguros (Chile, Colombia, Peru) using Kanban. Led frontend development for Banco de Chile's Factoring project using Scrum.

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Education

  • Diploma
    Diplomado
  • Master in Management
    University of Alicante
    2026
    Master Gestión

Skill set

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