For over a decade now, OpenNebula Systems has been building the open source technology that helps organizations around the world to manage their corporate data centers and build Enterprise Clouds with unique, innovative features.
Born back in the day as an open source platform for Private Clouds, OpenNebula is a powerful, but easy-to-use, open source Cloud & Edge Computing Platform whose community includes nowadays leading companies and public agencies in a wide range of industry niches and countries.
If you want to join an established leader in the cloud infrastructure industry and the integral open source community, keep reading, because you can now join exceptionally passionate, talented colleagues, and help world´s leading enterprises implement their next-generation edge and cloud strategies. Come join us in our distributed, fully-remote, international team, where we promote Creativity, Innovation, Collaboration, Open Communication and Iterative Work, and we´re seeking a Full-Stack Developer to work in the development of the OpenNebula open-source cloud management platform and its new strategic project in edge computing
Since 2019, and thanks to the support from the European Commission, OpenNebula Systems is leading the edge computing innovation in Europe, investing heavily in research and development, and playing a key role in the key strategic initiatives of the European Union.
The OpenNebula Systems team is looking for a Senior Full-Stack Developer to join the team. You will work across front-end and back-end development, with a stronger focus on front-end, helping us deliver robust, maintainable features for our open-source cloud management platform.




We are looking for a versatile developer with solid professional web development experience who is comfortable moving beyond a narrow front-end role. Experience working in Linux environments is important, while exposure to virtualization, CLI tooling, Ruby, or cloud infrastructure will be a strong plus as the role can evolve across different areas of the product over time.
As we are an international team, please submit your CV in English.
Design, develop, and maintain features across the OpenNebula web interface, working primarily on front-end development while contributing to back-end components when needed.
Own the implementation of new features from development through testing, documentation, and delivery.
Write well-tested, maintainable code with strong test coverage and a focus on long-term software quality.
Troubleshoot and solve development issues across the front-end/back-end boundary in Linux-based environments.
Bachelor’s or Master’s degree in Computer Science, Information Technology, or Engineering.

3+ years of professional software development experience in real production environments, with experience beyond purely front-end work.
~ Hands-on experience developing web applications across both front-end and back-end components.
~ Experience developing and maintaining user-facing web applications in production.




~ Experience collaborating on software projects using modern development workflows, version control, and technical documentation.

Strong web development experience with React, Angular, or Vue; willingness to work primarily with React in the day-to-day role.
Practical experience with Node.js, NPM, and modern JavaScript development workflows.
Comfortable working independently in Linux-based development environments (e.g., RHEL/AlmaLinux, Ubuntu/Debian).
Use of version control systems such as Git and experience with automated testing practices; Cypress experience is a plus.
Knowledge of virtualization, Ruby, or OpenNebula/similar cloud platforms is a strong plus.
Intermediate to Advanced English level (B2 or higher) is required.

Full-stack mindset, with the flexibility to contribute across front-end and back-end development rather than working in a narrowly defined area.
Product-oriented mindset, with the ability to turn ideas and requirements into maintainable, production-ready software.
Curiosity and adaptability to broaden your knowledge over time into areas such as virtualization, networking, cloud infrastructure, or other parts of the OpenNebula stack.
What's In It for Me?
Customized workstation (macOS, Windows, Linux any distro is welcome)
~ Private Health Insurance
~PTO: Holidays, Personal Time, Sick Time, Parental leave.
~ All Remote company with bright HQ centrally located in Madrid, and offices in Boston (USA) and Brno (Czech Republic)
~ We encourage the right for Digital Disconnecting and promote harmony between employees personal and professional lives
~ Full Time/Part Time, Employee (Spain/Usa) / Contractor (other locations)
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📌 Senior Developer (Pozuelo de Alarcón)
🏢 OpenNebula Systems
📍 Pozuelo de Alarcón