About this role

The challenge

We're at a pivotal stage in the evolution of our cloud platform. To continue scaling efficiently and strengthening reliability, we are evolving our virtualization platform within our IaaS environment. Our infrastructure supports mission-critical services, where performance, stability and continuous improvement are key.

As a Virtualization Engineer, your mission will be to design, deploy, operate and evolve virtualization infrastructures based on KVM in production environments. You will contribute directly to the evolution of the virtualization layer, participate in architecture decisions, and help improve infrastructure-related products.

You will play a key role in resolving critical incidents, analyzing high-impact escalations from the operations team, and optimizing performance, stability and efficiency of the platform. You will also contribute to reducing operational friction through automation and continuous improvement.

You'll be part of a highly collaborative engineering environment, working closely with Network, Systems, Storage and Operations teams to solve cross-functional issues and ensure the platform evolves in a scalable and reliable way.

Collaboration will be essential. You will support infrastructure decisions, participate in architecture changes, migrations and capacity expansions, proactively identify improvements, and ensure the platform continues to evolve with a strong technical foundation.

Requirements that are important for us

• Experience in administration and support of virtualization environments based on KVM in production.

• Proven experience in implementation, operation and troubleshooting of virtualization platforms.

• Advanced knowledge of Linux system administration.

• Strong understanding of KVM virtualization stack, including QEMU and libvirt.

• Experience diagnosing complex issues related to performance, capacity, availability and stability.

• Practical knowledge of networking in virtualized environments: bonding (link aggregation), VLANs or VXLANs, firewall rules (iptables).

Key skills and expected impact

• Strong documentation practices and contribution to technical procedures and operational best practices.

• Optimization of performance, stability and efficiency of the virtualization platform.

• Ability to lead root cause analysis and propose technical improvements to reduce incident recurrence.

• Resolution of complex and critical incidents escalated by the operations team.

• Contribution to automation to reduce manual and repetitive operational tasks.

• Technical judgment in validating new solutions, designs and changes impacting the virtualization layer.

• Acting as a technical reference, contributing to raising the overall technical level with practical knowledge and global vision.

Nice to have

• Experience with infrastructure orchestration platforms such as OpenStack, CloudStack or similar.

• Experience in cloud providers, IaaS platforms or large-scale infrastructure environments.

• Knowledge of centralized storage (NFS, iSCSI) and distributed storage (Ceph).

• Experience in high availability, capacity planning and resource optimization.

• Familiarity with observability, monitoring and performance analysis tools.

• Experience with automation tools such as Ansible.

• Participation in architecture evolution, standardization or platform improvement projects.

• Ability to document technical decisions and communicate clearly in multidisciplinary environments.

Tools

• Virtualization: KVM, QEMU, libvirt

• Networking: bonding, VLANs, VXLANs, iptables

• Storage: NFS, iSCSI, Ceph

• Orchestration: OpenStack, CloudStack or similar

• Automation: Ansible or similar

• Observability & performance: monitoring and performance analysis tools

• Collaboration & documentation: technical procedures and operational documentation

About us

Ready to shake up the tech world? At Jotelulu, we’re on a mission to empower Technology Service Providers with our secure, all-in-one cloud platform. We unite automation, AI, and growth tools, giving our partners the freedom to scale fast, launch big ideas, and build their brand with confidence.
This is the perfect time to join us: the company is growing rapidly, the challenges are exciting, and each person has a real impact.

If you are passionate, ambitious and ready to help shape the future of cloud technology, we want to meet you. You will join a fun, fast-paced, collaborative, and agile team, helping us scale our platform to millions of users while building out Jotelulu’s own infrastructure and data centers with the latest technologies.

Life a Jotelulu

We’re passionate about technology, but we’re also a bit geeky—we love Star Wars, video games, 90s movies, and pop culture.
We work hard and with passion, but we also have a great time together. At Jotelulu, you’ll find a balance between work and fun, where teammates often become friends, and boredom is rare—there’s always something new, unexpected, and memorable happening.



Videos behind the scenes

Meet our team!

This is how we roll at events!



Our own event, the SUMMIT




What We Offer

At Jotelulu, we aim to create an environment where people can grow, enjoy what they do, and bring their best selves to work. That’s why we’ve designed a benefits package that reflects who we are, how we work, and what we value as a company.

Jotelulu Culture

Our culture is how we work, how we relate to one another, and how we build something meaningful together.
It’s not about “cool” values for a website — it’s about real behaviors we live every day: a positive atmosphere, accountability, trust, and effectiveness.

At Jotelulu, we are committed to:
A great working environment built on teamwork, optimism, joy and the drive to do things well.
Responsibility and ownership, because everyone knows what needs to be done and finds the way to make it happen.
Trust, as the foundation of teamwork and our relationships with partners.
Effectiveness, focusing on results and constantly challenging ourselves to ensure we’re on the right path.

Special Days
You’ll enjoy:
December 24th and 31st off,
Your birthday off — because we believe your day should be yours.

Competitive Salary
We offer a competitive salary aligned with the market and reviewed periodically to ensure fairness and recognition.

Continuous Learning
We support your professional growth through internal training, learning resources, and development plans tailored to your career path.

Private Health Insurance
You’ll have access to private health coverage, giving you peace of mind and support in your day-to-day life.

Informal Events
We believe in celebrating achievements, strengthening team bonds, and having fun along the way. We regularly organize informal events and activities to enjoy time together and reinforce our team spirit.