Hire the Top 2% of
Freelance Back-End Developers
in Spain

Íñigo C.

Vetted Back-End 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.

Roman O.

Vetted Back-End 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.

Thales P.

Vetted Back-End developer in Spain (UTC+2)

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

Sergiu P.

Vetted Back-End 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.

Josue V.

Vetted Back-End developer in Spain (UTC+1)

I'm an experienced backend developer with 8+ years of expertise, specializing in creating innovative solutions for startups and SaaS platforms. My skills include Elixir, Ruby, and Typescript, along with frameworks like Phoenix, Rails, and Nest Js. I have hands-on experience with both relational and NoSQL databases, AWS, and distributed systems. I'm also skilled in agile methods, and both functional and OOP programming. I enjoy creating scalable systems and have worked on projects ranging from HR - Payrolls to Fintech. With strong communication and teamwork, I'm eager to tackle challenges and contribute to product development in exciting tech projects.

Senén H.

Vetted Back-End developer in Spain (UTC+1)

Software Engineer with industry experience (Marketing, Consulting, Banking, Hospitality) building web applications with more than 10 years of experience in all phases of the software development life cycle. My main experience is on shipping well structured, decoupled, tested and maintainable software written in PHP under Symfony, with relational and non-relation databases such MongoDB and MySQL. Passionate about software design and new technologies. Open to switching my tech stack. Solution-oriented person who quickly adapts to new environments and changing demands that have worked under Scrum methodology. [https://senenhermida.com/](https://senenhermida.com/)

Simon T.

Vetted Back-End developer in Spain (UTC+1)

I am a software engineer with a broad range of experience in in backend development from SaaS software to microservices with a particular focus on graph databases. I have worked on designing multi-region databases complete with metrics, disaster recovery plans and multi-tenancy solutions as well as helping teams to write efficient queries. I like both learning from others and helping bring new members in on a team and I hope to get a chance to work more focused with EP techniques such as pair programming in the future. I have worked in Go, PHP, RoR and when I have to do frontend work I usually fall back to vue.js."

Joaco F.

Vetted Back-End developer in Spain (UTC+2)

I am full stack developer with strong backend skills. I love coding and learning about new technologies. I am allways looking for new challenging jobs in order to test my skills and keep learning from the bests

Cristian H.

Vetted Back-End developer in Spain (UTC+1)

Senior software freelance developer Enhancer of business value bridges along with the technologies power-ups Security system and application manager Agile methodologies role player Sports lover.

Rafael P.

Vetted Back-End developer in Spain (UTC+1)

Senior .NET developer and tech leader with 15 years of experience, building products from start to end, self-taught and constantly learning, I like teamworking, software architecture, good practices and planning with agile methodologies.