Requisition ID: JOBREQ-2615894

Middleware Engineer, Generalist

Copenhagen, Denmark, Full-time

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The opportunity

We are seeking a skilled Middleware Engineer with expertise in Ceph, OpenStack, and Linux Systems Administration to join our Infrastructure Team. In this role, you will operate, improve, and scale critical infrastructure services, bringing a balanced and expert focus across storage, cloud infrastructure, and operating systems.

This position is ideally suited for a technically deep engineer who thrives working across multiple infrastructure domains — contributing both strategically and hands-on. You will play a key role in maintaining resilient platforms, improving operational efficiency through automation, and driving continuous gains in reliability for our internal teams.

We are looking for a collaborative engineer with a proactive mindset who values documentation, knowledge sharing, and continuous improvement — someone who elevates the team around them as much as the infrastructure they manage.

What you'll be doing

Support and maintain OpenStack infrastructure, ensuring stable integration with storage services while continuously contributing to the ongoing operation, improvement, and scalability of the platform.
Administer and optimise Ceph storage clusters, overseeing cluster health, capacity planning, performance tuning, reliability, and all day-to-day operational responsibilities across the storage environment.
Perform comprehensive Linux systems administration across infrastructure environments, including provisioning, configuration management, patching, performance tuning, troubleshooting, and full lifecycle management.
Automate operational workflows using scripting languages and infrastructure automation tools such as Ansible to drive consistency, scalability, and efficiency across Ceph, OpenStack, and Linux platforms.
Troubleshoot complex, cross-platform infrastructure issues spanning storage, compute, networking, and operating systems — conducting thorough root-cause analysis and implementing long-term, sustainable improvements.

What we're looking for

Solid experience working with OpenStack in an operational or engineering capacity, with a strong understanding of its integration with underlying storage and networking layers.
Demonstrated expertise in Ceph storage administration, including cluster operations, configuration, health monitoring, troubleshooting, and performance tuning in production environments.
Strong Linux systems administration skills, with proven experience managing and maintaining production Linux environments at scale.
Hands-on experience with automation, scripting, and infrastructure-as-code tooling for provisioning, configuration management, and operational workflow optimisation.
Strong knowledge of Linux and host networking, with the ability to troubleshoot and problem-solve effectively across distributed systems and complex infrastructure services.

You might also have

Experience with monitoring and observability platforms such as Prometheus, Grafana, or the ELK Stack.
Familiarity with network infrastructure configuration, including switches and routers.
Knowledge of security best practices, including hardening, patching, and compliance considerations in enterprise infrastructure environments.
Experience with disaster recovery, backup strategies, and business continuity planning.
Exposure to public cloud platforms such as AWS, Azure, or Google Cloud.

Additional information

Relocation support is not available for this position
Work visa/immigration sponsorship is not available for this position

Benefits

At Unity, we want our team members to thrive. We offer a wide range of benefits designed to support well-being and work-life balance.

Please note: Benefits eligibility, specific offerings, and coverage vary based on the country and employment status.

While specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally: Comprehensive health, life, and disability insurance | Commute subsidy | Employee stock ownership | Competitive retirement/pension plans | Generous vacation and personal days | Support for new parents through leave and family-care programs | Office food snacks | Mental Health and Wellbeing programs and support | Employee Resource Groups | Global Employee Assistance Program | Training and development programs | Volunteering and donation matching program

Life at Unity

Unity [NYSE: U] is the world’s leading game engine, powering play for more than 3 billion consumers each month. The top mobile games in the world, the most played PC indie titles, the most innovative console games, and virtually all of the top XR and Web Games are developed, deployed, and grown in Unity. Unity also enables teams across industries like automotive, manufacturing, and healthcare to design, simulate, and collaborate in 3D — closing the gap between ideas and reality. For more information, please visit www.unity.com.

Unity is a proud equal opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, or any other protected status in accordance with applicable law. Our differences are strengths that enable us to support the growing and evolving needs of our customers, partners, and collaborators. If you have a disability that means there are preparations or accommodations we can make to help ensure you have a comfortable and positive interview experience, please fill out this form to let us know.

This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English.

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Location: Copenhagen, DenmarkDepartment: EngineeringType: Full-timeRequisition ID: JOBREQ-2615894