Empleos de senior backend engineer java en Madrid

Seeking a Senior Java Backend Engineer with 7+ years of experience in Java, SpringBoot, microservices, and cloud platforms like AWS.Requires proficiency in Kotlin/Go, SQL/NoSQL databases, and strong English communication skills.

Experis Manpower Group in Madrid seeks an engineer to own technical products and drive end-to-end projects with a cross-functional team. You will apply deep programming knowledge and cloud experience to deliver tangible business value from day one. The role favors an entrepreneurial mindset, proactive problem solving, and a passion for learning in a dynamic,...

Se busca desarrollador backend senior con experiencia en Java y Spring Boot para diseñar, desarrollar y mantener aplicaciones escalables, APIs REST y microservicios.Participará en todo el ciclo de vida del software, asegurando calidad y rendimiento.Ofrece contrato indefinido y teletrabajo.

Work Your Magic with us! Ready to explore, break barriers, and discover more? We know you've got big plans – so do we! Our colleagues across the globe love innovating with science and technology to enrich people's lives with our solutions in Healthcare, Life Science, and Electronics.¿Le gusta esta oportunidad? Asegúrese de inscribirse rápido, ya que se...

We're looking for a Senior Java Engineer to join our team in Malaga, Spain in a remote working mode. In this role, you will develop and enhance backend services supporting MLS Touch and MLS Client, two mobile applications enabling real estate professionals and their clients to collaborate seamlessly throughout the property search and transaction journey.You...

airapps is seeking a Backend Software Engineer to design and build server-side components in a dynamic environment. This is a fully onsite position based in Lisbon, requiring strong collaboration with cross-functional teams. The ideal candidate will have 5+ years of experience with Node.js, TypeScript, and cloud platforms like GCP. Benefits include top-tier...

Incode is seeking a backend engineer to design and implement scalable backend services powering millions of users. You will work across API design, data migrations, and fraud-detection‑oriented features, ensuring performance and reliability. You'll collaborate with DevOps, ML engineers, and product teams, applying robust engineering practices, code...

Softtek busca un Desarrollador Senior Python para fortalecer la capa backend, con al menos 4 años de experiencia. El rol se centra en crear soluciones robustas, escalables y seguras, con énfasis en APIs y servicios. Se valorará experiencia en ciberseguridad y buenas prácticas de desarrollo.Modelo híbrido con oficinas en Madrid y trabajo en equipo,...

AiFi is seeking a Backend Software Engineer to optimize highly concurrent systems and scale our store operating systems from small to large venues. You will shape core backend microservices and collaborate with app developers and product managers to address real-world use cases and bottlenecks.Join a platform that enables real-time analytics and scalable...

Finom is seeking a Senior Backend Engineer who thinks like a product builder and thrives in a collaborative cross-functional team. You’ll own backend systems, focusing on robust, scalable financial infrastructure, in a domain team with frontend, mobile, ML/AI, and QA partners across Europe.You’ll bring deep .NET/C# expertise, experience with...

Join our expanding engineering team! We're actively recruiting a Senior Backend Engineer to help scale M-KOPA Mobility, our fast-growing e-mobility business. This is an initial 12-month Fixed Term Contract, with the potential to extend or transition into a permanent role. Build the event-driven microservices that power clean, affordable transport for riders...

Kleo is seeking a talented Senior Backend Engineer to develop and optimize our AI-native financing platform. You will contribute to the entire product lifecycle, building features using NestJS, TypeScript, and PostgreSQL, while integrating advanced AI solutions to enhance automated workflows.Join a dynamic startup environment in Madrid, where you will...

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,...

Scrambly S.R.L. is seeking a Senior Backend Engineer to help build the core systems behind Scrambly. You’ll work on user-facing product systems and the internal platform, solving scalability challenges for a global, adtech product.You’ll design and maintain scalable Node.Js/NestJS RESTful APIs, mentor engineers, and collaborate with Product, Design and...

Aircall, a unicorn AI-powered customer communications platform, is hiring a Senior Backend Engineer in Madrid. You will design, build, test, and deploy backend systems using TypeScript/Node.Js with a strong emphasis on security, scalability, and performance.Collaborate with product managers, designers, and engineers to deliver end-to-end solutions, mentor...

Merlin Digital Partner is seeking a Senior Software Engineer (Python) to design backend systems, cloud infrastructure and APIs powering its connected health technologies. You will work closely with Product, AI, Embedded and Frontend teams to deliver scalable, reliable software across the stack.You will own architectural decisions, build robust APIs, optimize...

Ciklum in Málaga, Spain, is seeking a Senior Python Engineer to join a cross-functional team building backend features. You will implement AI on the client's internal platform, support high-quality code, and collaborate across planning, development, testing, and deployment.The role emphasizes PostgreSQL design, Alembic migrations, and REST API work, with a...

A global consulting firm is looking for a skilled Backend Developer (Node.Js) based in Barcelona, Spain. In this role, you will design and develop scalable backend systems that support high-impact digital solutions for international clients. Ideal candidates have at least 5 years of software engineering experience and proficiency in Node.Js with Fastify. The...

MediaMarktSaturn Plattform Services GmbH in Barcelona is seeking a senior backend developer to design, implement and operate scalable services for our Global Loyalty ecosystem. You will work with Kotlin, GCP, and modern DevOps practices to deliver reliable solutions that power millions of interactions across Europe.The role emphasizes event-driven...

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...