Empleos de senior backend java engineer remote en Barcelona

SlashMobilitySlashMobility es una firma boutique tecnológica que está construyendo algo diferente a la consultoría tradicional. No queremos ser una fábrica de horas ni una consultora masiva. Estamos creando una casa para la Tecno Élite: profesionales que quieren trabajar con grandes corporaciones en retos reales, con equipos pequeños, muy buenos y con...

Build and maintain the iOS mobile app for Qonto's finance workspace, focusing on product features, real-time challenges, and code quality using Swift and SwiftUI.

Lever, Inc. is seeking a Backend Engineer based in Spain to join a small, ambitious product team. You will own the central API and backend services, primarily using Node.js and TypeScript, and focus on API design, data modeling, performance, and developer experience. This remote, asynchronous role offers substantial technical ownership, collaboration with...

Reference: Job ID: Posted: Closing date: Location: Barcelona - 4 remote work days per weekSalary: up to 50.000 euros gross anual (per annum)Job type: PermanentIndustry: Tecnología e Internet / TechnologyCompany: HaysConsultant: Anna GarrigaHays office: Barcelona — Hays Barcelona, Calle Valencia, 307-313, bajos 1aPhone: Email: new companyElectronic...

Lever, Inc. is seeking a Senior Backend Software Engineer for its Future Hiring Program, based in Spain.You will join a forward-thinking engineering team delivering high-impact software for global enterprise clients across diverse industries. Working remotely within Europe, you will contribute to design, development, and deployment of scalable backend...

Naphora Games Group is seeking a Senior Backend Engineer to design, build, operate, and scale robust backend systems and platforms. This fully remote role aligns with our Saudi working schedule (Sun–Thu, 9:*****:00 KSA time).You will work across backend services, databases, and integrations, focusing on reliable, scalable solutions that support large user...

Giesecke+Devrient is seeking a Senior Java Backend Developer to lead the design, development, and maintenance of secure, cloud-native microservices for our TSM platform. You will build robust Spring Boot 4 applications, implement API-first architectures, and drive automated tests in a Kubernetes environment. You will collaborate with architects, product...

About The CompanyScrambly is one of the fastest-growing adtech startups in the world, featured in the AppsFlyer Performance Index and Singular ROI Index in just 3.5 years. We're growing 250%+ YoY across revenue, team, product, and technology - fully bootstrapped and profitable. We're building the future of app discovery: a reward-powered alternative to the...

PMAT Inc. is seeking a Senior Systems Engineer to oversee multiple subsystems and drive high-level designs for world-class weapon systems.You will collaborate with technical leads, program management, and external partners to resolve system-wide challenges and align architectures with business objectives.The role emphasizes leadership, rapid prototyping, and...

Initium Software busca un Automation Engineer con más de 8 años de experiencia en automatización de pruebas para diseñar y mantener frameworks para Guidewire PolicyCenter y BillingCenter.Colaborarás con equipos globally y stakeholders alemanes, implementando pruebas de extremo a extremo y asegurando la calidad de sistemas críticos.El rol es 100% remoto...

Lever, Inc. is partnering to hire a Product Engineer (AI-Native) based in Spain.You will own features end-to-end, from problem discovery to production, working with AI agents as primary development partners in a fully remote, international team.You'll shape architecture, integrations, and production readiness, reviewing AI-generated implementations for...

Smart Working is a remote-first company seeking a Senior PHP/Symfony Engineer to own backend work for enterprise marketing and revenue data. The role involves Symfony 6.X with an upgrade to Symfony 7, Angular front end, and Python AI microservices, requiring strong architectural thinking and independence.Expect to work in a remote, cross-functional squad...

Flight Centre Travel Group in Barcelona seeks a Software Engineer to build AI-native products powering travel experiences for clients worldwide. You will join agile squads, own backend services, and contribute to a Rails stack while advancing in a global, collaborative environment.Responsibilities include developing LLM-powered features, implementing CI/CD,...

Descripción del puesto En The Whiteam Consulting estamos buscando un/a Senior Java Back End Developer centrado en el desarrollo y soporte de los componentes backend de productos internacionales de alto impacto. El rol implica desarrollo backend avanzado, despliegue en entornos cloud, análisis en fases de integración y producción, revisión de código,...

Marfeel group is seeking a Backend Engineer in Barcelona to join their high-ownership engineering team. The role requires 5+ years of experience in backend service production, strong proficiency in Node.js and TypeScript, and an understanding of API design and performance optimization. Benefits include flexible working arrangements, subsidized health...

Accessiway is seeking a Backend Developer (Mid / Senior) to design and build scalable backend systems that power digital accessibility worldwide. You will work in a hybrid setup with remote work and on-site presence in Turin, Italy, contributing to Lambda, ECS, REST APIs, and data storage strategies while collaborating with cross-functional teams. Ideal...

HSP Group in Barcelona is seeking a Lead Backend Engineer responsible for the technical direction of Gateway HR. The ideal candidate should have over 7 years of backend development experience and a strong technical leadership background. Responsibilities include evolving the architecture for scalability and leading external teams. This remote role offers the...

SlashMobilitySlashMobility es una firma boutique tecnológica que está construyendo algo diferente a la consultoría tradicional. No queremos ser una fábrica de horas ni una consultora masiva. Ayudamos a grandes organizaciones a diseñar y construir productos digitales y plataformas tecnológicas que realmente mueven su negocio. No nos limitamos a ejecutar...

About SeqeraSeqera is on a mission to empower scientists and organizations to solve humanity’s biggest challenges through data-driven science. As the company behind Nextflow and the Seqera Platform, we enable global enterprises, biotech innovators, academic institutions, and public sector organizations to scale complex data workflows with...

Job DescriptionJob Title: Python DeveloperJob Type: ContractLocation: RemoteJob Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.Key...