Empleos de senior python backend en Barcelona

Preply is seeking a Senior Engineer to join the Engineering Team in Barcelona to develop backend features with Python/Django, and to build integrations with third-party vendors for an AI-enabled learning platform. You will collaborate with Product, Design, Data Analytics and Engineering to deliver high-quality features through CI/CD, maintain robust testing,...

Mambu Payments (formerly Numeral) is hiring Senior Backend Software Engineers to help build the next generation of bank connectivity and payment automation products with a focus on security, stability and performance. You will own architectural decisions for high-impact projects, collaborate with Product Managers and Dev Ops, mentor engineers, and contribute...

Affinity (CRM) in Barcelona is seeking a Senior Software Engineer to join the One Platform team and help drive the technical roadmap and implementation of Internal and External API layers, the 3rd party integration platform, and access management systems. The role is hub‑hybrid, with team members in-office 2 days per week, collaborating across engineering,...

M-KOPA is seeking a Senior Backend Engineer to scale M-KOPA Mobility. You will build event-driven C#/.NET microservices powering a growing e-mobility financing platform across Africa. The 12-month Fixed Term Contract can extend or become permanent, with fully remote work across UTC -1 to UTC +3.You will own services end-to-end, collaborate on architecture,...

FCC Medio Ambiente es la empresa líder del sector medioambiental en España, referente en la gestión de servicios públicos de recogida de residuos, mantenimiento y conservación de zonas verdes, limpieza viaria, etc.Presentes en más de 5.300 municipios en 12 países, mejoramos la calidad de vida de más de 65 millones de personas en todo el mundo, y...

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Backend Software Engineer – Future Hiring Program based in Spain.Join a forward-thinking engineering team delivering high-impact software solutions for global enterprise clients across diverse industries.As part of a...

Fin Tech Collective, LLC is seeking a Senior Software Engineer for the Core Platform team that runs a real-time payment ledger. You will work on how transfers are accepted, recorded and confirmed, with strong emphasis on correctness under high concurrency. You’ll own design, write tests, review code, profile performance, and lead cross-team initiatives...

Shalion is seeking a Senior Backend Engineer to lead backend initiatives across multiple products and shape the technical roadmap. You will manage one backend engineer from day one and guide the team as it grows, balancing hands-on architecture with leadership responsibilities.The role emphasizes product-focused engineering, AI-enabled automation, and close...

Neural Trust in Barcelona, Spain, is seeking a Senior Software Engineer to scale our platform and advance AI security technologies. You will contribute to backend systems using Go and Python, own end-to-end initiatives from design to deployment, and collaborate with a talented, multi-skilled team. The role emphasizes building robust, secure, and measurable...

Capitole busca un/a Senior Backend Engineer con amplia experiencia para unirse al equipo en Barcelona. Desarrollarás el backend de la plataforma, creando APIs REST seguras e integraciones con sistemas internos y de terceros. Trabajarás con Node.Js/Type Script, Postgre SQL y Redis, en una arquitectura API-first sobre Azure, con prácticas Dev Ops y...

Super is a global technology group building The Playstack, powering sports, gaming and fan experiences across Europe and Latin America. We are seeking a Senior Backend Engineer to join the Player – Transact Tribe to shape scalable systems and drive platform-wide improvements. You will work on core platform components, cloud-native solutions, and...

Playtomic seeks a Senior Backend Engineer to build robust APIs and scalable services. You will own domain decisions in a pod, collaborating with product and frontend teams to ship secure, high-performance backend systems.Strong Java Spring Boot, API design, and distributed systems experience are essential, with a focus on production health and AI-assisted...

We are looking for a Senior Java Backend Engineer to join our growing Java Development Competence Center . Reporting directly to the Tech Lead , you will be part of an experienced international team, contributing to the design and development of high-quality software solutions for leading international client. This is an excellent opportunity for a...

TechsBCN está buscando un Desarrollador Backend Blockchain para un rol 100% remoto y totalmente enfocado en soluciones DeFi y Web3.Diseñarás, desarrollarás e implementarás contratos inteligentes y APIs seguras, trabajando junto a equipos de frontend y producto para lograr escalabilidad y rendimiento.Se requiere mínimo 2 años en blockchain, dominio de...

Senior Backend Engineer needed for a fintech company in Barcelona to build and maintain core APIs and data connectors. Requires Python experience.

Workato seeks a seasoned Go backend engineer to design and optimize distributed systems that power our runtime platform. You will tackle high-concurrency components, memory-sensitive paths, and performance-critical code, collaborating across teams to ensure reliability and scalability. This role emphasizes low-level engineering and robust concurrency...

Voodoo is seeking a senior backend engineer to design and build the server-side foundation for Castle Busters, moving from client-authoritative to server-validated gameplay. You will define APIs and player-state management, working with client engineers and game designers to deliver scalable, secure gameplay systems. You will own server-side validation for...

Actualmente estamos ampliando equipo y buscamos perfiles Backend JAVA o PYTHON para proyectos en el ámbito de ciberseguridad en Barcelona:INGENIERO BACKEND JAVA o PYTHON SENIOR-Experiencia: 5 años-SBA: 35KINGENIERO BACKEND JAVA o PYTHON INTEMEDIATE:-Experiencia: 3 años-Salario: 30kREQUISITOS PRINCIPALES JAVA:-Experiencia con Java y Spring-Conocimiento en...

We are looking for a Python Developer with strong experience in Python and Flask to help build scalable backend systems.Our client is a global leader in legal research technology, providing access to one of the most comprehensive collections of legal information worldwide. By leveraging AI and advanced data analytics, they’re transforming how legal...

Scorp is a global mobile technology company powering monetization at scale. We seek a Software Engineer to join our Payments Team in Barcelona, building backend services for subscriptions, virtual gifting and in-app purchases, processing millions of events daily. You will work across Product, Mobile, Data and Finance to ship monetization features, improve...