Presales Engineer at OpenNebula SystemsJoin to apply for the Presales Engineer role at OpenNebula Systems.
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. We are building an awesome, engineering‐first culture and are currently looking for a Presales Engineer to join our distributed, fully‐remote, international team.
Job DescriptionWe are looking for a Presales Engineer to support the sales cycle from a technical perspective, working closely with Technical Sales Engineers and the Sales team. This role focuses on technical execution and support during presales activities, including demos, evaluations, PoCs, and RFP responses. The Presales Engineer helps ensure that proposed solutions are technically sound, reproducible, and aligned with OpenNebula's product capabilities.
Responsibilities
Support presales engagements by preparing and executing technical demonstrations, use cases, and solution validations.
Contribute detailed technical input to RFQs, RFPs, and RFIs under the guidance of the Account Executive.
Participate in technical discovery sessions to understand customer infrastructure, requirements, and constraints.
Set up, execute, and document Proofs of Concept (PoCs) and technical evaluations, ensuring repeatability and clarity of results.
Validate solution feasibility and identify technical risks, limitations, or dependencies early in the sales cycle.
Collaborate closely with Product and Engineering teams to clarify requirements, validate configurations, and reproduce technical issues when needed.
Maintain and improve technical documentation related to presales environments, demos, PoCs, and reference setups.
Stay current with OpenNebula releases, features, roadmap direction, and relevant open‐source and infrastructure ecosystem developments.
Experience RequiredAcademic Background and Certifications
Bachelor's/Master's degree in computer science, information technology, or engineering.
Professional Experience
2+ years of experience in a Presales Engineer, Systems Engineer, or similar technical role.
Solid background in IT/cloud infrastructure environments.
Experience supporting PoCs, demos, or technical evaluations.
Exposure to customer‐facing technical interactions is a plus.
Technical Experience
Linux administration: RHEL/AlmaLinux, Ubuntu/Debian.
Experience using virtualization technologies such as KVM, LXC, libvirt/QEMU, and/or VMware.
Ability to document technical setups and configurations clearly.
Experience working with other cloud management platforms is strongly preferred.
Experience in AI from an IaaS perspective in relation to use cases, GPUs, etc. would be very advantageous.
Language Skills
English fluency at a professional level.
Soft Skills & Collaboration
Strong customer service mindset, with a focus on responsiveness and user satisfaction.
Clear and structured communication.
Self‐management and accountability with ability to work independently, manage time, and follow defined processes and deliver predictable outcomes.
Technical autonomy and tool proficiency with confidence in using Git, CI/CD, remote collaboration tools (Slack, Zoom, GitHub, etc.), and solving problems without direct supervision.
What's in it for me?
Competitive compensation package and Flexible Remuneration Options: Meals, Transport, Nursery/Childcare...
Company‐provided workstation.
Private Health Insurance.
6 hours workday on Fridays and everyday during August.
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).
Healthy Work‐Life Balance: We encourage the right for Digital Disconnecting and promote harmony between employees personal and professional lives.
Flexible hiring options: Full Time/Part Time, Employee (Spain/Usa) / Contractor (other locations).
We are building an awesome, Engineering First Culture and your opinion matters: Thrive in the high‐energy environment of a young company where openness, collaboration, risk‐taking, and continuous growth are valued.
Be exposed to a broad technology ecosystem. We encourage learning and researching new technologies and methods as part of your everyday duties.
Additional Information
Seniority level: Entry level.
Employment type: Full‐time.
Job function: Sales and Business Development.
Industries: Software Development.
Location: Madrid, Community of Madrid, Spain.
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