Empleos de senior javascript engineer en Zaragoza

Jobgether SRL is seeking a Senior SRE Engineer based in Spain to build reliable, scalable cloud-native infrastructure for an international gaming platform. You will shape DevOps and SRE practices, mentor teams, and champion Kubernetes-native approaches across engineering.The role blends hands-on infrastructure, observability, automation, and incident...

Yazio seeks a Senior Mobile Engineer to drive features end-to-end for our wellness app, leveraging Kotlin Multiplatform to support both Android and iOS platforms. You’ll partner with product, engineering, and design to shape roadmaps and deliver high-impact experiences across a globally used product.Ideal candidates bring deep mobile expertise, strong...

Appfire is seeking a skilled Senior JS/TS engineer to join the Astroneers team, working on JMWE/JMCF products and related features. You will contribute across ideation, design, development, release, and maintenance in a transparent, supportive environment. You will design scalable applications using Effect-TS and Node.js, applying best practices, and...

A prominent recruitment partner is seeking a Mid-Senior Level Data Engineer to develop scalable data systems. The role is fully remote, requiring 4+ years in cloud environments like AWS or GCP, strong software engineering skills, and proficiency in data processing technologies like Databricks. You will have opportunities for mentorship and a collaborative...

Jobgether SRL, on behalf of a partner, is seeking a Senior Full Stack Developer (React + Node.js) based in Spain. You will design and implement modern frontend with React, and robust backend with Node.js/NestJS, on a cloud-native AWS platform.Join an international team, work remotely, influence architecture, CI/CD, and AI-assisted development. Requires 7+...

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...

Jobgether SRL is seeking a Founding Senior Software Engineer based in Spain to build and scale an AI-powered platform. You will own architecture decisions, shape product direction, and drive end-to-end development in a lean, autonomous team.You will integrate AI capabilities, work on high-performance APIs, and influence infrastructure choices to support...

BBVA busca un/a Senior AI Platform Engineer para liderar la implantación y evolución de una plataforma corporativa de LLM Gateway. Se trabajará en acceso seguro, gobernado y observable a modelos de IA generativa, integrando con aplicaciones y agentes de IA del grupo.El candidato debe dominar plataformas cloud, APIs, seguridad y operación en entornos...

Jobgether is seeking a Senior Automation QA Engineer (Playwright/TypeScript) based in Spain. You will design, develop, and maintain end-to-end and API tests, migrating legacy Java-based tests to Playwright, and leading test automation architecture improvements.You will also develop load-testing scenarios with k6, evaluate performance metrics, and collaborate...

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,...

Titles? Meh, we’re not big on them, but let’s call this one Data Scientist like the other colleagues at the team As part of our international AI/ML squad, you’ll craft tailor-made solutions that wow our clients. We’re hunting for a passionate Senior AI Engineer with a solid technical background. Your mission? Train, deploy, and put groundbreaking...

Jobgether SRL, on behalf of a partner company, is seeking a Senior Backend Software Engineer as part of a Future Hiring Program. This remote Europe role is based in Spain and focuses on building scalable backend services for global enterprise clients.You will design, develop, and deploy cloud-based systems using C#, .NET, C++, and related technologies while...

EPAM Systems busca un Ingeniero/a de Datos Senior para liderar la migración de pipelines de productos de datos desde Oracle a Databricks. Se trabajará en un entorno ágil con clientes Fortune 1000, manteniendo altos estándares de ingeniería.La posición admite Madrid, Málaga o trabajo remoto en toda España, con comunicación fluida en inglés (B2+/C1)....

MEDvidi is seeking a Senior Frontend Developer to lead end-to-end frontend delivery on AI-powered clinical and administrative products. You will work with an evolving Angular monorepo, contributing to patient-facing apps and AI-assisted features, while aligning with a cross-functional team across design, product, and backend interfaces.You will own frontend...

Conteg Spain busca un Ingeniero Industrial Senior para diseñar, construir y mantener sistemas de producción escalables que impulsan productos utilizados por miles de clientes. Trabajarás con gerentes de producto, ingenieros y DevOps, en un entorno que valora la propiedad, la mentoría y la mejora continua.El rol es totalmente remoto. Requisitos: más de 5...

Knowmad Mood busca un perfil de desarrollo backend senior con más de 6 años de experiencia para diseñar y evolucionar soluciones basadas en microservicios, Java y Spring en un entorno tecnológico avanzado, orientado a IA y soluciones escalables.Trabajarás en APIs REST, arquitectura hexagonal, pruebas y DevOps (CI/CD, Kubernetes). Ofrecemos contrato...

Playtomic is seeking a Senior Backend Engineer to build robust, scalable APIs and services. You will own your domain end-to-end, balancing technical excellence with business impact while collaborating with product, design, and frontend teams.You will work in a fast-paced, pod-based environment, shipping production-ready software and integrating AI-assisted...

Nuitée is hiring Senior Product Engineers to join Connect, the heart of our platform. Connect unifies hotel supply into a single clean API that partners build on, enabling real-time pricing and inventory at scale.You’ll own the full lifecycle, move fast from idea to production, and ship iterations that matter with measurable impact on partner traffic and...

Elastic, a distributed company, is seeking a Senior Software Engineer to join the Elasticsearch - Search Relevance team. You will help shape the technical direction, design and implement new search features, and tackle challenging bugs to improve speed and relevance. You will work with a globally distributed team focused on vector search capabilities,...

Want to shape the future of #EUSpace Programme? If you have experience in Space projects such as #Galileo, #EGNOS, #SST or if you have #Cyber or #IT background… We have good news for you! We have exciting opportunities! CETRA BASE is currently looking for Senior Cyber security engineers to support EUSPA , the EU Agency for the Space Programme. ...