Empleos de software engineer open source en Madrid

Software Engineer (Open Source Contributor)Position:Software Engineer (Open Source Contributor)Type:ContractorCompensation:$50–$100/hourLocation:Remote — WorldwideAbout the OpportunityWe're seeking experienced software engineers and open-source contributors to create realistic coding challenges that help train next-generation AI systems.You'll develop...

Mozilla seeks a Senior Software Engineer for AMO, delivering features and platform modernization across Python/Django-based systems. You’ll drive architectural improvements, enhance automated moderation pipelines, and collaborate with engineers, reviewers, and community contributors to ship reliable software used by millions. You’ll contribute to CI/CD...

Software Engineer (Open Source Contributor)Position:Software Engineer (Open Source Contributor)Type:ContractorCompensation:$50–$100/hourLocation:Remote — WorldwideAbout the Opportunity We’re seeking experienced software engineers and open-source contributors to create realistic coding challenges that help train next-generation AI systems. You’ll...

Software Engineer (Open Source Contributor) Position: Software Engineer (Open Source Contributor) Type: Contractor Compensation: $50–$100/hour Location: Remote — Worldwide About the Opportunity We’re seeking experienced software engineers and open-source contributors to create realistic coding challenges that help train next-generation AI systems....

Flexible, Spain / Flexible ¿Todo listo para enviar su solicitud? Por favor, lea la descripción al menos una vez antes de hacer clic en "Solicitar". SerbiaEngineering – OSS TEAM /Regular Full Time /RemoteIn the cloud, every second counts. On the leading edge of security, Sysdig stops attacks in real-time by instantly detecting changes in cloud security...

Flexible, Spain / Flexible¿Todo listo para enviar su solicitud? Por favor, lea la descripción al menos una vez antes de hacer clic en "Solicitar".- SerbiaEngineering – OSS TEAM /Regular- Full Time /RemoteIn the cloud, every second counts. On the leading edge of security, Sysdig stops attacks in real-time by instantly detecting changes in cloud security...

A leading data technology company in Madrid is looking for motivated Software Engineers to join their dynamic development teams. You will solve data engineering challenges, work on both open-source and proprietary products, and mentor junior developers. Candidates should have a strong background in Java and be passionate about open-source projects. This role...

SUSE is seeking a Premium Support Engineer to provide post-implementation support for enterprise customers, troubleshooting issues and delivering timely resolutions. You will build strong relationships with technical and management staff, aligning SUSE solutions with customer business needs. The role emphasizes open source values, cross-functional...

Synthires is seeking a Software Engineer to contribute to open-source projects from anywhere in the world. You will help design and implement realistic coding challenges, build reinforcement learning environments, and create deterministic verifiers to evaluate solutions. Collaboration spans multiple languages including Python, Java, Rust, Go, C++, and...

Qdrant is a remote-first company building the vector search infrastructure for AI applications. We are seeking a Mid-Level Security Engineer to own hands-on security work within our Cloud Engineering team, reporting to the Security Officer, and driving remediation across the product and engineering org. You will triage vulnerability reports, secure code...

The Speech Team at the Barcelona Supercomputing Center is seeking a Machine Learning Engineer with hands-on experience in speech technologies, deep learning, and model development for speech synthesis. The role focuses on TTS research, implementation, and collaboration with open-source initiatives. You will work on state-of-the-art language technologies,...

Liferay, Inc. is seeking a backend-focused engineer with strong frontend architecture understanding to join the Frontend Infrastructure team. You will design, build, and optimize backend frameworks, tooling, and delivery pipelines powering the frontend ecosystem, while maintaining robust server-side practices and a broad view of client‑side consumption....

Mozilla Corporation is seeking a Senior Software Engineer to advance Firefox security. You will design, implement, and ship security features for enterprise users, contribute to Firefox security architecture across multiple OS, and collaborate with cross-functional teams. You’ll bring 3+ years in low-level software, strong C/C++, knowledge of security...

OpenNebula Systems is hiring a Senior Full-Stack Developer to work on the OpenNebula web interface and its edge computing initiative. You will lead frontend development with opportunities to contribute to backend components, thrive in an autonomous, cross-functional team, and impact a widely used open-source cloud platform. The ideal candidate has strong...

SearchApi is seeking an AI Integrations Engineer to ship real open-source integrations across Ruby, Python, and TypeScript/Node. You’ll contribute PRs to frameworks and MCP servers, writing docs and example apps that developers can drop into their stacks. You’ll stay current with agent and automation spaces like LangChain, n8n, and OpenClaw, finding...

Grafana Labs, the company behind the open observability cloud, is a fully remote organization with 1,600+ team members across 40+ countries. This Senior Engineer role on Pyroscope focuses on scaling a distributed database, improving profiling capabilities, and integrating with the Grafana stack. You will own end-to-end projects, drive operational excellence,...

OpenNebula Systems seeks a Cloud Systems Engineer to design, deploy, and support large edge and cloud-based solutions across Europe. You will work with open source technologies, interfacing with users, and helping optimize cloud-edge use cases. The role requires hands-on experience with cloud integration, virtualization, and monitoring, plus strong English...

It Partner busca un/a DevOps / Platform Engineer para unirse al equipo OSPO y apoyar la plataforma Open Source de la compañía. Participarás en diseño, automatización, operación y evolución, enfocándote en fiabilidad, escalabilidad, seguridad y observabilidad.Trabajarás con tecnologías cloud-native, Kubernetes/OpenShift, IaC con Terraform y CI/CD...

Grafana Labs is seeking a Solutions Engineer to bridge customers, sales, and product teams. You will listen to prospects, extract needs, and translate them into Grafana solutions, delivering demos, enablement, and technical evaluations.In this remote-first role, you will collaborate with global teams and customers, demonstrating Grafana technologies,...

Treelogic busca un Consultor de Ingeniería de Datos con amplia experiencia en consultoría y en proyectos internacionales para unirse a su equipo. El candidato debe estar orientado al cliente y familiarizado con mantenimiento y entornos de servicio.Se valorará experiencia en AWS, Data Engineering, orquestación de pipelines y herramientas open source....