Hi, I'm
Sergio Fernández
Senior Software Engineer
Senior software engineer specialized in creating scalable and efficient solutions. I transform complex ideas into robust and high-quality digital products.
About Me
Learn about my journey as a software engineer and my passion for technical excellence

Sergio Fernández
Senior Software Engineer
Mérida, Extremadura, Spain
Hi! I'm Sergio, I've been passionate about technology since I was very young. As a child, my curiosity led me to take apart everything I could get my hands on -radios, remote-controlled cars, remotes, even televisions- to understand how they worked inside. That same inquisitive spirit led me to get started with computers at the age of 12, when the first computer arrived home. Since then, I have not stopped learning, experimenting and sharing knowledge, actively participating in communities and forums such as APP Informática and Coolmod.
Currently, I am a Senior Software Engineer with more than 6 years of experience, and I have had the opportunity to lead teams since my professional beginnings. In my first position as a junior programmer, I was promoted in just three months to lead a team of four people. Since then, I have continued to develop as a technical reference, leading high-impact initiatives in both software architecture and development processes.
My focus is oriented to create quality software, implement scalable and efficient solutions, and coordinate teams under agile methodologies to achieve concrete goals aligned with the business. Today, I lead a team of four people with whom I manage the daily development, ensuring code quality and fostering an environment of continuous improvement.
I am convinced that technology should not only work well, but also be built well. And that is the philosophy I apply in each project.
My professional career is built on the constant pursuit of technical excellence and continuous growth. I firmly believe in the power of technology to transform ideas into real solutions that generate positive impact.
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Years of Experience
In software development
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Team Members
Led across different projects
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Age of Initiation
First contact with computing
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% Reduction
Infrastructure costs
Areas of Specialization
Architecture & Quality
- Maintainable and scalable software systems
- Clean Architecture and Design Patterns
- Code Quality and Technical Debt Management
DevOps & Monitoring
- CI/CD Pipelines and Automation
- Infrastructure as Code and Containerization
- System Monitoring and Performance Optimization
Technical Leadership
- Technical Leadership and Team Management
- Resource Planning and Stakeholder Management
- Mentoring and Professional Development
My Journey and Philosophy
During my university career, I was a class delegate and member of the student council, leading teams of up to 15 people and representing UEx at the national level in RITSI. I have also been a student tutor and mentor in the Cómplice project.
In 2019, we undertook the adventure of founding MétrikaMedia, an exciting project that sadly ended after years of professional and personal growth. Currently, I have started a new stage as CTO at Findder, where exciting challenges and the opportunity to lead technological innovation in a dynamic and cutting-edge environment await me.
Tech Stack
The technologies and tools I master to create exceptional solutions
Frontend
Frontend Development
DevOps & Infrastructure
Infrastructure & CI/CD
Databases & Architecture
Databases & Architecture
Tools & Methodologies
Tools & Methodologies
My Languages
Global communication without linguistic barriers
My Trajectory
A professional journey marked by technological innovation and strategic leadership
Senior Software Engineer
Developing advanced technological solutions and leading software development projects from a hybrid perspective in Badajoz, Extremadura. Focused on architecture, development and delivery of high-quality products.
Senior Software Engineer
Management and preparation of software project architecture: backend, frontend, database, infrastructure, CI/CD. Led a team of 4 people organizing their daily work using agile methodologies.
Software Engineer
Frontend development with React, Redux and Saga for music list management. Backend with Python/Flask and Java/SpringBoot. Optimized relational database design and process automation.
Researcher
Automatic management and execution of continuous deployment (CD) and continuous integration (CI). Frontend architecture, design and programming with ReactJS, Redux and redux-saga for important client like PRISA.
Junior Programmer
Continuous development and improvement of web application in ReactJS with Redux for global state management and Jest as testing tool. Backend with Python/Flask, JWT and PyTest.
Junior Programmer
Web application development for Telefónica client as part of code and architecture migration using AngularJS for Frontend and Jasmine as testing framework. Backend with JavaEE, SpringBoot and JPA.
My Education
Academic training and professional development in the field of computer engineering
Master's in Computer Engineering
Advanced specialization in computer engineering with focus on software development, distributed architectures and applied research methodologies.
Bachelor's in Software Engineering
Comprehensive training in software engineering with active participation in university life and student representation. Experience in student leadership and collaborative projects.
Contact 📧
I'm here to help you with your next project
Contact information
Available for projects
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