Trabajo de backend engineer en Barcelona

Web3 Insights is proud to represent a well-funded fast-growing company redefining how developers build secure, seamless, and scalable wallet infrastructure. Their platform provides open-source, programmable, and gasless wallet infrastructure that lets developers focus on building great products instead of managing complex crypto tooling. We're hiring a Backend Engineer - someone who'll own the...

En CAPITOLE, ¡seguimos creciendo y queremos hacerlo contigo! Buscamos un/a Senior Backend Engineer para incorporarse a un proyecto internacional, técnico y retador. Si te motiva tener ownership end-to-end del backend y trabajar con buenas prácticas, ¡esta es tu oportunidad! La posición es híbrida, con dos días de teletrabajo y oficinas en los alrededores de Barcelona. ¿Qué perfil estamos...

En NTT DATA , estamos impulsando grandes programas de modernización tecnológica que están redefiniendo cómo las organizaciones operan, deciden y se transforman.Y lo estamos haciendo con lo más avanzado que existe hoy: plataformas agentic basadas en GenAI , capaces de aprender, razonar y ejecutar tareas de forma autónoma para acelerar la innovación.Buscamos talento tanto en Cataluña, Valencia y...

We’re hiring a Senior Backend Engineer to design, build, and scale high-performance backend systems that protect governments and critical infrastructures.If Python is your home , C is your sharp tool , and you enjoy building systems that must never fail , keep reading.About the company: Fast-growing cybersecurity company redefining digital security standards in the B2G (Business to Government)...

An international SaaS company in Barcelona is seeking a Senior Software Engineer. This backend-focused role offers ownership and impact on Identity & Access Management, APIs, and integrations. The ideal candidate will have extensive experience in Ruby on Rails and backend development. This position includes a permanent contract, equity options, and various perks like health insurance and public...

A tech company specializing in AI is seeking a Senior Backend Engineer to build backend systems for conversational AI and digital humans. This hybrid role in Barcelona involves both architecture and hands-on development, particularly with LLMs and AWS services. Candidates should have 5 years in backend engineering and experience building LLM-powered products. The position offers significant...

A dynamic travel company is looking for a Node.js Engineer to design and build scalable backend services with a strong emphasis on performance and reliability. Join a multicultural team dedicated to delivering unique travel experiences, with benefits including a competitive salary, flexible working schedule, and the opportunity to travel at reduced prices. This role offers 100% remote working...

Sanno Ltd, a leading health tech company, is on the lookout for a passionate Backend Engineer to join their team in Barcelona. This role involves designing and developing scalable backend systems, managing databases, and leading API integrations. Ideal candidates will have at least 3 years of experience in a startup environment and proficiency in Node.js. With competitive salary, equity options,...

A tech recruiting software firm in Barcelona is seeking a Backend Engineer to help build robust, scalable features as they launch their new office. You'll collaborate in a modern Agile environment, define technical requirements, and contribute to peer code reviews. Ideal candidates will have over 5 years of experience in backend development and a strong understanding of RDBMS and TypeScript. The...

Craft:Technology & DevelopmentJob Description:Senior Backend EngineerYour role within our KingdomAs a member of the ML Operations team within the Live Operations department, you will collaborate closely with our game teams. Your responsibilities will include developing the platform and integrating our decision automation platform into our games such as Candy Crush Saga. We are looking for an...

A global leader in open source software is seeking a Software Engineer to join their innovative team focused on IoT solutions. In this remote role, you'll design scalable backend services, manage data governance, and drive technical excellence across projects. Ideal candidates will possess strong skills in Golang or Python, cybersecurity expertise, and experience with data streaming technologies....

A leading communication technology company in Barcelona is seeking a Senior Backend Software Engineer to join their Auxiliary Squad. The ideal candidate will have over 10 years of software development experience, specializing in Java and PostgreSQL. This role offers a supportive environment with opportunities for innovation and professional growth while working with cutting-edge technology....

A leading deep-tech company is looking for a Backend Engineer to develop and maintain backend systems using Python or Go in a hybrid role based in Barcelona or Madrid. Offering a competitive salary starting from €45,000, the position includes unique bonuses and a relocation package. Ideal candidates have 2–5 years of experience and expertise in API design, Docker, and relational databases. Join a...

A global marketplace for refurbished devices is looking for a Staff Backend Engineer to define architectural vision and mentor engineers. The role emphasizes technical ownership and collaboration across the tech division. Candidates should have depth in software design and be comfortable with Go and distributed systems. Join a mission-driven team with a hybrid work environment and a commitment to...

Bynder goes far beyond managing digital assets. Our AI-powered digital asset management platform enables teams to conquer the chaos of proliferating content, touch points, and relationships in order to thrive. With intuitive, AI-powered solutions that enhance content creation, simplify asset discovery, and maximize the value of every asset, we are the brand ally that unifies and transforms the...

Join to apply for the Backend Engineer (Typescript) (50K€-65K€) role at Joppy We’re hiring a Backend Engineer for our client — someone who’ll own the backend systems that power our crypto and self‑custody platform. You’ll bring deep expertise in Go, TypeScript, RabbitMQ, and Kubernetes, paired with a passion for distributed systems, cryptography, and fintech. What you’ll do - Design,...

Una plataforma SaaS en crecimiento busca un/a Senior Backend Engineer que diseñe y desarrolle servicios backend escalables usando Django y Python. Este rol clave incluye mentorizar a ingenieros junior, implementar buenas prácticas y colaborar en un entorno Agile. Se requiere experiencia en cloud computing y habilidades de comunicación excepcionales. Ofrecen un modelo híbrido, ubicación a 20...

En NTT DATA , estamos impulsando grandes programas de modernización tecnológica que están redefiniendo cómo las organizaciones operan, deciden y se transforman. Y lo estamos haciendo con lo más avanzado que existe hoy: plataformas agentic basadas en GenAI , capaces de aprender, razonar y ejecutar tareas de forma autónoma para acelerar la innovación. Buscamos talento tanto en Cataluña, Valencia...

Ready to build and scale a fast-growing B2B SaaS product?We’re hiring 2 Senior Python Engineers to design and architect web solutions, build maintainable and scalable software, and contribute to a cloud-native platform with AI-powered capabilities. If you’re passionate about Python, cloud technologies, and creating user experiences that actually make an impact, this one’s for you.About the...

Una empresa líder en tecnología busca un Backend Software Engineer con sólidos conocimientos en Java y experiencia con Spring y Microservicios. Se ofrece un entorno de trabajo híbrido en Barcelona, desarrollo de carrera personalizado, formación adaptada a las necesidades del empleado y beneficios sociales como seguro médico y tickets de comida. Se requiere buen nivel de inglés y habilidades en...