Ceph Engineer / Developer

ELITS • Montreal, QC

16h • Remote

About The Position

Join ELITS Canada’s R&D organization, where innovation, collaboration, and technical excellence shape the backbone of our cloud infrastructure. You’ll work with experienced engineers to evolve and optimize our large-scale OpenStack-based platform and its storage foundations.
We organize our work through small, agile teams focused on specific areas like IaaS, PaaS, AI & Data, and Cloud Integration. Our culture is defined by trust, self-leadership, and close collaboration between our teams in Canada and Sweden. Expect an environment that values experimentation, open communication, and continuous learning.

Requirements

• Proven track record operating Ceph at scale (multi-petabyte, high-availability clusters) in production environments.
• Strong C++ development experience for system-level software, especially within Ceph core components.
• In-depth knowledge of performance tuning (OSD placement, CRUSH maps, BlueStore tuning, cache tiering, RGW optimization).
• Solid understanding of Linux systems engineering, networking, and storage I/O paths.
• Proficiency with Ansible (playbooks, roles, collections) for large-scale operations and Python for custom modules, Ceph tooling, and automation workflows.
• Hands-on experience with performance analysis tools (perf, flamegraphs, distributed tracing).

Nice To Haves

• Familiarity with Go for building lightweight or performance-sensitive utilities is an asset.
• Prior contributions to Ceph or other distributed storage projects (patches, reviews, or design documents).
• Knowledge of cloud platforms such as OpenStack and their storage integrations.

Responsibilities

• Deep-dive into Ceph code and architecture (RADOS, RGW, core storage) to optimize performance and scalability for production workloads.
• Profile, benchmark, and troubleshoot performance issues at scale—spanning tens of petabytes and thousands of clients—to identify architectural and operational bottlenecks.
• Lead internal knowledge development and mentorship on Ceph expertise across the IaaS and Operations teams.
• Actively contribute upstream to the Ceph project by submitting patches, participating in design discussions, and influencing features critical to cloud provider use cases (e.g., multi-AZ, RGW performance, tiering).
• Develop and maintain internal build pipelines and necessary extensions, ensuring compliance and long-term maintainability.
• Partner with Platform Operations to enhance observability, maintain stability, and accelerate issue resolution in production clusters.
• Collaborate with other squads to ensure Ceph capabilities evolve in line with upcoming roadmap items such as GPU-aaS, Backup-aaS, Bare-metal-aaS, and DB-aaS.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior