Empleos de remote java backend engineer ai en Barcelona

Elastic is seeking a Senior Java Developer to join the Elasticsearch team and drive the Inference API. You will build and maintain the plugin framework and REST API, collaborating with the inference team and the Kibana team to deliver scalable, reliable software across Elastic's cloud and hosted environments. Ideal candidates bring 5+ years of production...

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 and...

DeepRec.Ai is hiring an Applied AI Engineer to join a small founding team building an AI native productivity platform.The role focuses on creating reliable ML-powered features across email-oriented workflows, with an emphasis on context maintenance, decision support, and user-in-the-loop approvals.You will design prompts, tools, memory and agent workflows;...

Airbnb, Inc. is seeking a Senior Systems Engineer for the Content Products team to build and scale content management systems, authoring workflows, analytics, and AI-assisted experiences for writers.You will own multi-workstream projects, mentor engineers, and partner with product, engineering, and content teams to meet evolving needs of content creators and...

Logicalis Spain busca un/a Ingeniero/a de IA con experiencia en AWS para diseñar e implementar sistemas de agentes y flujos con LLMs.Elaborarás arquitecturas, integrarás herramientas y asegurarás seguridad y escalabilidad.Trabajarás con AWS Bedrock, Lambda, API Gateway y CI/CD, montando soluciones desde prototipos hasta producción en entornos...

Mindrift is seeking a CAD specialist to help train and evaluate AI agents within a real CAD environment. You will design part geometry, build reference solutions, and assess the agent's attempts while working alongside CFD engineers who simulate your geometry. The role requires 5+ years of hands-on CAD modelling with industry tools and an active CAD license....

Bending Spoons is seeking a talented security-minded professional to help build one of Europe’s leading tech companies. You will work with small, high-performing teams focused on security, privacy, and robust systems while growing your career in a fast-paced, startup-like environment. The role offers flexible start dates, part-time options initially, and...

Adevinta's Kleinanzeigen unit in Barcelona seeks a Data Engineer (Analytics & Products) to design and build scalable data assets connecting high-traffic backends with user-focused analytics. You will own ingestion through Airflow, transformation with dbt on Databricks, and ensure data quality, observability, and cost-conscious modelling. Strong SQL, Python,...

Eco Vadis is seeking a hands-on Senior Knowledge Graph Engineer to operationalize ontologies into high-throughput graph systems. You will work on Graph RAG, entity resolution, and semantic federation, powering autonomous AI agents solving sustainability challenges. Location: Hybrid in Barcelona with remote options from Spain. Strong emphasis on Cypher,...

Capitole is growing fast, and we want you to be part of the journey! We are looking for a skilled senior Full Stack Developer to join our dynamic team. You will work with cutting-edge technologies, developing robust applications using Next.Js over React and Tailwind CSS for responsive UI. The role involves developing efficient, scalable applications on the...

Logicalis Spain busca un/a Senior AI Engineer para unirse a su servicio de IA en una importante compañía del sector telecomunicaciones. Participarás en el diseño, desarrollo y despliegue de soluciones basadas en LLMs, modelos multimodales y sistemas multiagente, en entornos cloud y contenedores, con AWS.Se valorará experiencia en IA generativa,...

Abi is seeking experienced Data Science / Machine Learning professionals to enhance its AI Lab in Barcelona. The role involves developing AI features, coaching junior team members, and conducting ML experiments. You can work remotely or from our Barcelona office.The ideal candidate has strong knowledge of ML algorithms, enjoys working in a startup...

Lighthouse in Barcelona is seeking a Data Science Engineer to own projects from business questions through to models and AI products delivered to customers. You will work in the Data Science Core, collaborating with ML engineers and customers to turn data into real actions.You’ll apply Python-based ML, cloud orchestration, and generative AI to hospitality...

Tether is seeking a Fullstack Engineer to help QVAC application teams develop, review, test, and deliver reliable software across desktop and mobile platforms. You will shape tooling, implement AI agents, and build developer tools within a global remote team, driving automation and quality.You will work with engineers to identify improvements, own them from...

Alan, the health prevention platform, is hiring in Spain. You would join the Engineering team building AI agents that answer 1M+ members’ questions about reimbursements, coverage and claims — instantly and without a human. We move fast with ownership, ship production AI, and use a stack of React, Python/Flask, PostgreSQL. Remote-friendly, in-person...

AI EngineerAs you contemplate your future, you might be asking yourself, " What's the next step?' Start your journey with us! We're seeking an experienced AI Engineer to join our Data Science team in Barcelona (Hybrid) to build the applications, and agents that put generative AI in front of over 20 million customers. You will be working with the DS, ML...

Amaris Consulting is seeking a Senior Full‑Stack Engineer to join our AI‑powered Payroll Operations platform, building scalable Python/. NET services, Angular micro frontends, and cloud‑hosted AI agents for global payroll workflows. You will design REST APIs, work with SQL Server, Terraform, and modern frontend tech, collaborating across engineering,...

Mirantis is seeking a motivated HPC Network Engineer to support and grow within our infrastructure team. You will work on Infini Band and Ethernet networks, optimize performance for AI workloads, and learn Fortinet security tools under senior engineers. The role offers growth toward a Senior HPC Network Engineer with hands-on experience in RDMA, MPI, and...

Leadtech Group is seeking a talented Full-Stack Developer to help build and scale AI-driven platforms. You will work across our technology stack to deliver seamless user experiences, joining projects with a shipping-fast approach and modern tools. The role involves developing frontend and backend features, integrating external services, and collaborating...

Cavendish Professionals is seeking a fully-remote Senior AI Engineer to design and develop AI-powered applications. The role involves building backend services using Python and Fast API, integrating AI workflows, and optimizing performance of AI systems. Ideal candidates will have expertise in LLMs, relational databases, and frameworks like Lang Chain or...