Arbetsbeskrivning

Ceph is the foundation of our storage services. As Ceph R&D Architect, you’ll design and evolve large-scale distributed storage for OpenStack — balancing performance, durability, and cost efficiency. You’ll own architecture and tuning, guide teams through complex change, and contribute upstream to strengthen the ecosystem. Your work will directly define how data flows, scales, and stays resilient across Cleura’s cloud regions.

Cleura is the European cloud built on open source and data sovereignty.

As part of the Iver Group, Cleura provides secure, compliant, and scalable cloud infrastructure across multiple European regions — fully aligned with GDPR and local data protection frameworks.

We are a Gold Member of the OpenInfra Foundation, actively contributing to OpenStack and related open-source communities.

Our mission is to empower organizations to run critical workloads in an open, transparent, and sovereign cloud.

About the team :

You’ll join Cloud Services R&D, Cleura’s core engineering organization responsible for evolving our OpenStack-based platform and surrounding services.

We work in a Spotify-model setup of autonomous Tribes and Squads, each owning a specific area such as IaaS, PaaS, AI & Data, or Integration.

Our culture is built on servant leadership, self-leadership, and collaboration across distributed teams in Sweden, Poland, and beyond.

Expect an environment that values experimentation, open communication, and continuous learning.

Responsibilities:

• Deep-dive into Ceph code and architecture (esp. core storage, RADOS, RGW) to optimise performance and scalability for our production workloads.
• Profile, benchmark, and troubleshoot performance issues at scale (tens of PB, thousands of clients), identifying architectural or operational bottlenecks.
• Lead internal knowledge development and mentorship for Ceph-related competencies across our IaaS and Operations teams.
• Actively contribute upstream to the Ceph project:
• Submit patches and fixes
• Engage in design discussions and community meetings
• Influence roadmap for features critical to cloud provider use-cases (e.g., multi-AZ, RGW performance, tiering)
• Develop and maintain internal build pipelines and extensions where necessary, ensuring compliance and maintainability.
• Partner with Platform Operations to improve observability, maintain stability, and accelerate incident resolution in production clusters.
• Collaborate closely with other squads to ensure Ceph capabilities support upcoming roadmap items such as GPU-aaS, Backup-aaS, Bare-metal-aaS, and DB-aaS.

Requirements( Must have):

• Proven track record of operating Ceph at scale(multi-petabyte, high-availability clusters) in production.
• Strong expertise in C++ developmentfor system-level software (experience with Ceph core components).
• Practical experience in performance tuning(e.g., OSD placement, CRUSH maps, BlueStore tuning, cache tiering, RGW optimizations).
• Solid knowledge of Linux systems engineering, networking, and storage IO paths.
• Required: Strong experience with Ansible(playbooks, roles, collections) for large-scale ops; Python for custom modules, Ceph tooling, and integration workflows.
• Nice to have: Gofor ecosystem tooling and performance-sensitive utilities
• Hands-on troubleshooting skills with tools such as perf, flamegraphs, and distributed tracing.

Good to have (Merit skills):

• Prior contributions to Ceph or other distributed storage projects (patches, reviews, design docs) is highly valued.

Qualification:

• Engineering degree in a related field or equivalent experience and training.
• or if any certification is required.

Personal Qualities:

We believe success in this role comes from curiosity, ownership, and teamwork.

You’re someone who:

• Thrives in collaborative, cross-functional environments.
• Communicates clearly and transparently in English (spoken and written).
• Enjoys working in distributed teams and takes responsibility for results.
• Balances technical depth with practical problem-solving.
• Shares knowledge generously and contributes to a culture of learning and trust.

What we offer:

• Cleura has a corporate bargaining agreement (kollektivavtal) with Almega
• Full-time position
• 6 weeks vacation
• Yearly wellness allowance of 5000 SEK.
• Personal competence development plan.

Who would be my direct manager? Daniel Nolte

I'm interested. What's next?

We review applications on an ongoing basis. Please apply as soon as possible. In order to qualify for this position, you must be able to pass a background check.

At Cleura, we believe that a diverse and inclusive workforce drives innovation and success. We welcome applicants from all backgrounds, and we actively strive for a workplace that reflects a broad range of perspectives, skills, and experiences. We are particularly committed to achieving gender balance and fostering an environment where everyone feels respected and empowered to contribute their best.

We encourage candidates of all genders, ethnicities, abilities, and orientations to apply. Together, we can create a work culture that is not only more representative, but also more dynamic and inclusive.

We conduct background checks in the final stages of the Recruitment process.

Type of Employment : Full time position.

Location: Office Locations (Hybrid) or Fully remote.

Start Date : At your earliest convenience.