Empleos de java backend senior en Madrid

Aircall is seeking a Senior Backend & AI Engineer responsible for designing, developing, and deploying critical AI features. With a focus on LLMs, you will be involved in building chatbots and automated content generation tools. The position emphasizes collaboration, innovation, and high-quality coding practices in a fast-paced environment.Join Aircall to...

Senior/Principal Statistical Programmer SAS + R (Remote)Sponsor-dedicated:Working fully embedded within one of our pharmaceutical clients, with the support of Cytel right behind you, you'll be at the heart of our client's innovation. As a Principal Statistical Programmer you will be dedicated to one of our global pharmaceutical clients; a company that is...

En Experis, compañía de ManpowerGroup, trabajamos seleccionando el mejor Talento tecnológico para conectarlo con todo tipo de organizaciones, desde grandes corporaciones hasta start ups.Somos una compañía especializada en consultoría IT y en selección de profesionales del sector Tecnológico asociados a nuestras 3 prácticas: Business Transformation,...

Adlanter busca un/a desarrollador/a backend para unirse a su equipo internacional de e-commerce en Barcelona. Esta persona liderará el desarrollo y la integración de funcionalidades en la plataforma Salesforce Commerce Cloud (SFCC), garantizando la calidad del código y tomando decisiones clave sobre la arquitectura técnica.Se requiere formación técnica...

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,...

Tecdata busca Senior Scala Backend Developers para unirse a un proyecto internacional en modalidad 100% teletrabajo. Los candidatos participarán en el desarrollo y evolución de una plataforma SaaS empresarial basada en tecnologías Scala y AWS.El rol implica desarrollo backend, diseño de APIs, optimización de consultas SQL, y colaboración en entornos...

Rain is looking for a Senior Software Engineer in EMEA. This remote position involves managing backend platform areas, including API integrations with 3rd-party vendors. The ideal candidate has at least 5 years of experience, is proficient in backend languages like Go and Python, and skilled in creating scalable, reliable systems. Responsibilities include...

Spain | Remote | Senior Engineering OpportunityMaxIT Consulting – Max Corporate Groupis looking for aSenior Backend Engineer, Payments and Ledgerto join a fast-growing New York fintech company building banking, payments, and settlement infrastructure for US prediction markets and regulated gaming.The company operates financial infrastructure that has...

Rechat Inc is seeking an experienced Backend Engineer to architect and maintain core services powering our CRM and Marketing platforms. You will design scalable data models and write high-performance SQL queries, ensuring robust testing and smooth API evolution.The role emphasizes collaboration with Customer Success and cross-functional teams, driving...

Ebury's FinCore Engineering team seeks a Senior Software Engineer to modernize our FX platform, reduce technical debt, and build high-throughput backend systems. You will lead architecture choices, own delivery from discovery through production, and mentor others across Europe and South America.We value strong domain knowledge in FinTech, excellent English,...

About the companyBiorce is a pioneering Healthtech company dedicated to revolutionizing drug development through the power of AI. We are passionate about accelerating medical advancements and improving patient outcomes.Our team comprises seasoned clinical research professionals, data scientists, and AI experts, working collaboratively to bridge the gap...

NTT DATA is seeking a Software Solutions Architect in a hybrid Barcelona-based role to design, implement, and optimize infrastructure software solutions for diverse clients. You will specialize in licensing, governance, and multi-technology integration across Cisco, Microsoft, VMware and Palo Alto ecosystems.You will lead architecture discussions, assess...

About the teamThe AI/ML Engineering team builds and operates ClickHouse's AI and machine learning products end-to-end. This includes the Agentic Data Stack, AI Functions, chDB, the in-Console copilot, and the AI/ML partnerships that distribute them — together with the shared components and expertise that let every other ClickHouse team ship AI in the...

Swiss Re, a global leader in reinsurance and risk transfer, seeks a Senior Backend Engineer to shape engineering across backend services, integrations and automation. You will mentor peers, contribute to AI/automation capabilities, and work on scalable solutions within the IT Resilience unit.You will join the SACM team and collaborate across Enterprise data...

JetBrains seeks a backend specialist to own entitlement, metering, and billing systems. You will design and operate JVM-based services, evolve data flows from licensing to quotas, and ensure correctness across distributed components.The role focuses on building reliable APIs, migrations without downtime, and observability, collaborating across teams to keep...

Crew buscaAnalista Programador/a Senior para liderar el desarrollo backend con Spring Boot. El proyecto se basa en microservicios, usando Java, JPA/Hibernate y PostgreSQL, con seguridad mediante OAuth2 y JWT. Se valora experiencia en APIs REST y despliegue en AWS, trabajando en un entorno técnico avanzado.El candidato ideal tendrá capacidad para comprender...

Block Labs is seeking a Go backend engineer to build distributed, transactional backend services across crypto, fintech, and real-money gaming. You will own architectural decisions and be responsible for production behaviour in a high-velocity environment.The role focuses on writing robust Go services, ensuring correctness, and operating the system with...

Mystery Project busca un Senior Backend Developer para Barcelona, con funciones de diseño, desarrollo y despliegue de APIs escalables usando Node.Js, TypeScript y NestJS. El candidato trabajará en migración hacia una arquitectura serverless en AWS y contribuirá a soluciones basadas en eventos con Lambdas, API Gateway y RDS.Formarás parte de un equipo...

Bsport is an all-in-one platform for boutique fitness and technology. We are hiring a Senior Backend Engineer in the Community & Engagement team to build scalable backend systems for marketing, communications and member data across thousands of studios worldwide.You will own complex backend projects, contribute to re-architecture, and collaborate with...

Jobgether SRL, listed on behalf of a partner company, seeks a Senior Software Engineer (Node.Js/Python) based in Spain to build backend and AI-enabled systems powering an innovative mobility platform. You will design, develop, and operate scalable web services and APIs using Node.Js, TypeScript, and Python, owning architecture and working with AI engineers...