Dear all,
currently we are searching for a freelance Ceph developer (m/w/d).
Ceph Developer (m/w/d) C++ / Python
Start: asap
Utilization: 100% (40 hours per week desired, minimum is 30 hours per week)
Duration: 6 months+
Location: 100% Remote - CET Timezone
Language: English
Contract type: Freelance / B2B contract
As a Ceph Developer, you will work on the core components of the Ceph storage platform, with a focus on performance optimization, feature development, and long-term maintainability. You will contribute to both upstream Ceph and internal forks, designing and implementing enhancements across modules like RGW, RADOS, RBD, and CephFS. This role combines deep system-level development with the operational realities of running Ceph in large-scale, Kubernetes-driven cloud-native environments.
Team Activities
1. Design and implement new features in Ceph (RGW, RADOS, RBD, CephFS)
2. Optimize storage system performance, scalability, and reliability
3. Troubleshoot distributed storage issues and debug low-level system behavior
4. Participate in upstream Ceph development and community discussions
5. Integrate Ceph with Kubernetes via Rook and CSI drivers
6. Monitor and improve system observability using telemetry and metrics
7. Plan and execute development tasks using Agile methodologies
8.
Contribute to technical documentation, design reviews, and internal knowledge sharing
Required Skills
1. Strong proficiency in C++ and Python (5+ years)
2. Hands-on experience with Ceph (any of RGW, RADOS, RBD, CephFS)
3. Solid understanding of Linux internals (I/O, memory management, threading)
4. Familiarity with Kubernetes, Rook, and Ceph CSI drivers
5. Experience with Git, GitHub, and CI/CD pipelines
6. Exposure to large-scale infrastructure or cloud-native environments
7.
Proficiency with observability tools (Prometheus, Grafana, etc.)
Optional Skills
1. Contributions to open-source projects (especially Ceph)
2. Experience with cloud platforms: AWS, Azure, or OpenStack
3. Familiarity with performance profiling tools and storage benchmarks
4. Knowledge of S3 and Swift protocols and object storage semantics
Please contact me for applications or questions at jonathan.warnecke(a)nemensis.de
Alternative you can text me on LinkedIn: https://www.linkedin.com/in/jonathan-warnecke-5187baba/
Kind regards
Jonathan
Freundliche Grüsse / Best Regards
Jonathan Warnecke
Account Director & Nearshore Delivery Lead
Nemensis AG | | HamburgEin Unternehmen der Firmengruppe I. K. Hofmann GmbH
Überseeallee 1020457 Hamburg
Direct: +49 40 3609394-43 | Mobile: +4915119501580
mail: Jonathan.Warnecke(a)nemensis.de
web: www.nemensis.de
projekte: jobs.nemensis.de
Folge uns auf:
nemensis AG
Firmensitz: Überseeallee 10 | 20457 Hamburg
HRB. NR.: 181535 Hamburg | UST.-IDNR.: DE310161615
Aufsichtsratsvorsitzende: Frau Ingrid Hofmann
Vorstand: Heinz Ostermann | Benjamin Walker
A member of I. K. Hofmann
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