Hire the Top 2% of
Freelance SQL Developers
in Spain

Carlos G.

Vetted SQL developer in Spain (UTC+2)

Experienced Python Developer with a strong background in software and data engineering across finance, logistics, and e-commerce sectors. Proficient in SQL, AWS, and full-stack development, with a proven track record of optimizing operations and deploying scalable AI solutions. Adept at data analysis, problem-solving, and driving impactful business results.

Jakub M.

Vetted SQL developer in Spain (UTC+1)

I’m passionate about software, exprienced delivering projects on time and on budget and I'm always looking for new challenges. Available for a variety of roles, just as comfortable leading solo projects and working directly with the stakeholders to establish and refine the requirements, as part of or lead of a technical team.

Ivan M.

Vetted SQL developer in Spain (UTC+1)

Software Engineer who likes to make end-to-end solutions. Currently focused on JavaScript stack and open source software.

Roman O.

Vetted SQL developer in Spain (UTC+2)

Backend developer since 2005. Primarily Python/Django, lots of experience in adjacent areas. I had many responsibilities since I started professional work in the IT industry in 2005. Some projects I built by myself from the ground up, to create others I led a team. These days I tend to work independently on website backends, primarily in Python/Django.

Íñigo C.

Vetted SQL developer in Spain (UTC+1)

Accomplished Artificial Intelligence Lead with over eight years of progressive experience in software engineering, specializing in AI-driven solutions for marketing and sales ecosystems. Expert in leading cross-functional teams to innovate and implement AI tools that enhance operational efficiency. Currently spearheading a research and development team focused on creating bespoke machine learning models to optimize marketing strategies and sales processes. Holds a robust academic background with ongoing Ph.D. research in computer vision and machine learning applications. Proven track record in project management, having successfully developed and deployed a pioneering framework integrating differential privacy, in-database machine learning, and federated learning. Proficient in Python, C++, and Rust, with extensive experience in managing complex data systems and adapting new technologies to meet business needs. Committed to leveraging artificial intelligence to drive digital transformation and achieve business excellence in the global market.

Jose G.

Vetted SQL developer in Spain (UTC+2)

Experienced developer skilled in building high-performance web applications. Proven ability in using modern technologies like Node.js, TypeScript, NestJS, React, MySQL and MongoDB. During my time at Zegel IPAE as a Backend Developer, I had the opportunity to work on APIs for a Massive Open Online Course (MOOC) platform using PHP, Laravel, and MySQL. However, what stands out is that Zegel IPAE was my first project in Node.js, which allowed me to learn and gain valuable experience in this technology. Working with Node.js, alongside technologies like Laravel and MySQL, provided me with a strong foundation in backend development using a modern and efficient language. One project that benefited from my contribution was "App Mi Tienda" at Encora. As a Software Engineer, I designed and developed a scalable microservices architecture using Node.js, TypeScript, TypeORM, NestJS, MySQL, and GCP. My key performance optimizations, such as utilizing Cloud Pub/Sub and Cloud Functions, helped reduce load times and improve the overall scalability of the web application. My colleagues valued my ability to identify and solve complex technical challenges, which contributed to building robust architectures and optimizing performance. Additionally, they appreciated my strong teamwork and communication skills, as I actively collaborated with both the frontend and backend teams, ensuring seamless integration and successful project outcomes.

Sebastian M.

Vetted SQL developer in Spain (UTC+1)

I am a motivated, adaptable and responsible software engineer with hands-on experience on several technologies seeking challenging roles in globally distributed teams and projects. I have a strong passion for both software development and cybersecurity. I believe that these areas will lead the path forward for the upcoming years and as a result I would love to continue growing my experience in common fields such as automation, IoT, NLP and the cloud native ecosystem.

Dan G.

Vetted SQL developer in Spain (UTC+2)

I'm a software engineer and teacher, passionate about bringing technology to people and using it to advance science, social impact and wellbeing. I've worked at such places as Google, Magic Leap and Trilogy and taught in Tel Aviv university, creating 2 novel courses and co-creating another one that ended up top rated in its category on EDX, with more than 100K students.

Sergiu P.

Vetted SQL developer in Spain (UTC+2)

I am a passionate developer with more than 10 years of experience in PHP software development. Certified as a Zend Certified Engineer, I am interested in Clean Code, SOLID principles, best practices and design patterns, Test-Driven/Behavior-Driven development and Domain-Driven Design. I am continuously learning and striving to write good and maintainable code that performs well in production. I am an avid supporter of mentoring/coaching as a way to learn and grow your career inside the company and the open-source software community.

Thales P.

Vetted SQL developer in Spain (UTC+2)

15+ years of experience in IT. Researched AI techniques. Mentored other developers. Negotiated with clients. Conducted technical interviews.