About the role

We’re looking for a senior engineer with deep hands-on expertise in Rook (Ceph on Kubernetes) to help stabilize — and potentially redesign — a production object storage stack. This is part-time and long-term opportunity.

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What you'll do

What we need help with

This project is focused on Rook-based architecture and production hardening, including:

• diagnosing root causes of instability and performance collapse

• designing a reliable Rook/Ceph architecture for Kubernetes

• improving upgrade safety, operational stability, and performance

• advising whether we should stay on Ceph (via Rook) or migrate awayWe are also open to alternatives (e.g., managed object storage like Wasabi), but the primary goal is to engage someone who can own Rook/Ceph decisions end-to-end.

Environment (current)

• ~10 Kubernetes nodes

• VMs running on Proxmox

Current challenge

We are currently running a self-hosted Ceph-based object storage setup that becomes unstable under:

• heavy read/write traffic (S3 + RADOS writes)

• rebalancing events

• ongoing Ceph upgrades

Additional context:

• No namespacing in the current design

• ~0.5TB stored data

• Current infrastructure costs: ~$15–20k/month (Leaseweb)

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What we're looking for

Strong production experience with Rook (Ceph on Kubernetes)

Deep understanding of Ceph internals (rebalancing, OSD behavior, CRUSH, recovery tuning, etc.)

Comfortable owning architecture decisions in real production systems

Fluent English (daily communication)

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Frequently Asked Questions

What are the working hours and expectations for this job?

Since this is a remote role, the working hours are flexible. The work model in some cases could be hourly-based, and in other cases project-based.

How does the hiring process work?

1. Initial Screening of your application and CV 2. An introductory interview to assess fundamental qualifications and key criteria. 3. Technical interview/s covering DevOps, Platform Engineering, and SRE principles, as well as proficiency and problem-solving skills. 4. CEO interview assessing both advanced technical skills and personal character.

What types of projects will I be working on?

We work on a wide variety of projects across multiple industries and company sizes, each involving different technologies. Our clients are located in different countries worldwide, providing opportunities to work on international projects. Projects are matched based on the candidate's expertise, ensuring the best fit for both the project requirements and your skillset.

How is the payment structured?

We offer hourly contracts and you get paid for the hours worked every month.

Is there potential for long-term collaboration?

Absolutely! Most of our engineers stay with us long-term. Even after a project concludes, we usually have new opportunities available, allowing us to continue our collaboration.