Empleos de java backend senior en Barcelona

Lever, Inc. is seeking a Senior Backend Engineer for Payments & Fintech in Spain.You will rebuild and scale the financial systems at the core of a growing global platform, owning architecture for billing, subscriptions, and entitlements.You will lead migrations from legacy systems while ensuring correctness, reliability, and auditable financial...

Jobgether is seeking a Senior Backend Engineer – Data Core based in Spain.This remote-first role focuses on building infrastructure for a large-scale creator data platform, collecting data on hundreds of millions of creator profiles across major social platforms.You will own end-to-end backend systems, tackle distributed-systems challenges, and optimize...

Desarrollador Backend Blockchain (Remoto) Nuestro cliente busca un Desarrollador Backend Blockchain para unirse a su equipo de ingeniería de forma remota.Serás clave en el diseño, desarrollo y mantenimiento de nuestras soluciones descentralizadas, trabajando en la arquitectura de contratos inteligentes, la integración con redes blockchain y la...

SYLO Advisory busca un/a Programador/a Senior para evolucionar sus sistemas, aplicaciones y soluciones tecnológicas.Se valora capacidad para transformar requerimientos de negocio en soluciones eficientes, escalables y mantenibles.La posición combina análisis, tecnología y negocio, trabajando estrechamente con los equipos implicados.Se busca experiencia...

Proton Technologies AG is hiring for a backend-focused role in our Payments team.You will build features across Proton products, work closely with product engineers, and shape scalable software architectures that power a general subscription ecosystem. A strong emphasis is placed on performance, security, and high-quality API design to enhance user...

Knowmad Mood busca un perfil senior de desarrollo Java para liderar proyectos en arquitectura hexagonal, con experiencia en Docker, Kubernetes y microservicios. Se valorarán 5+ años en Java y conocimientos de Spring Boot, SQL/NoSQL y pruebas automatizadas.La empresa ofrece contrato indefinido con modelo de trabajo en remoto (opción de oficinas), 22 días...

Dow Jones in Spain (Catalonia) seeks a Senior Software Engineer to design, build, and operate reliable backend services and APIs powering product experiences and internal tools.You will lead complex features, improve performance and observability, and collaborate with cross-functional teams.You will work with Java, Spring Boot, and Python; AWS, Linux, CI/CD;...

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. WHY JOIN US If you're looking for a place to grow, make an...

About Nutrient At Nutrient, we're revolutionizing how the world works with documents. Our tools transform static files into intelligent, secure workflows, empowering businesses to innovate faster and smarter. Trusted by thousands of organizations across 80 countries, including Fortune 500 companies and public sector leaders, our platform supports nearly a...

Nutrient is building a scalable backend platform that powers Document Engine and related services. We seek a backend engineer who focuses on database-first design, with a track record of handling large volumes of data and annotations across global deployments.You will design data models, ensure fast query paths, and own architecture decisions. This role is...

Senior Backend Engineer - PaymentsAbout the opportunityYou will work in the Everyday Banking domain for the Payments team. This is where all payment and card transactions are being managed and processed by modern and high-volume systems that power the best customer experience possible. These teams make banking easy, reliable, seamless, and secure —...

Job ID: *****Location: Valencia, SpainEmployment type: permanentPosted: **********Valid through: ********** Cuentas con al menos 4 años de experiencia desarrollando aplicaciones con Java y experiencia trabajando en entornos web backend o fullstack?Has trabajado con Apache Git o Maven y te interesa formar parte de un proyecto tecnológico consolidado?Si...

Miratech is hiring a Senior Java Developer to contribute to development and maintenance of customized software for a large European client in the public sector.The project focuses on tax administration systems with end-to-end lifecycle coverage and integration with multiple external systems.You will work with a team of 20+ people, implementing components,...

We are on a mission to pioneer the world’s next era of play. As we grow across Europe and Latin America, we’re building The Playstack - the technology powering the next generation of sports, gaming, and fan experiences. Join us, and help make it the most widely used platform in the world! From operations, to marketing, to product, we are looking for...

Overview In this role, you will help design and implement core security features for Elasticsearch, focusing on authentication, authorization, and tenant isolation. You’ll work with engineering and product leaders to deliver high-performance security at scale in a distributed data store. The role emphasizes building secure, scalable components and applying...

Role Description We are looking for a Senior Backend Developer to join our IT Digital Marketing team within the Digital Sales Hub in Barcelona. In this role, you will design, build, and continuously improve backend services, APIs, databases, and integrations that support our digital marketing and sales capabilities.You will develop scalable, secure, and...

A technology recruitment firm is looking for a Senior Back-end Engineer with PHP expertise to develop and enhance

Una empresa de tecnología en Barcelona busca un Programador/a de IA Generativa para desarrollar y mantener una plataforma interna. El candidato ideal tendrá experiencia en Java backend y APIs, y habilidades en Python para integrar LLMs. Se ofrecen salario competitivo entre 35.000 y 45.000 euros brutos anuales, horario flexible, y beneficios como cheque...

Our Culture An exciting aspect of joining a newly created business at this stage is the opportunity to be in from the start and help define the culture. Part of this role will be to help build the culture and environment in Madrid as we expand our footprint. There are things that we won’t compromise on though: * We are looking for exceptional talent with...

Overview¿Te motiva desarrollar aplicaciones web robustas y participar en proyectos con impacto real en el sector educativo en Barcelona?En Nunsys Group buscamos un/a Desarrollador/a de Software con experiencia en tecnologías Java para incorporarse a un proyecto estable y de largo recorrido en Barcelona. Si te motiva trabajar en entornos técnicos...