Principal Private Cloud Engineer

Job ID 2026-17560 Date posted 12/06/2026 Location Cambridge, United Kingdom Category IT Job Description You will define and lead the technical strategy for a private cloud platform based on OpenStack, delivering scalable and reliable infrastructure services for engineering teams. The platform underpins large-scale engineering workloads and is central to the organisation’s infrastructure strategy. The platform is to be built using modern platform engineering principles, with strong emphasis on automation, APIs, and developer experience. You will operate across teams and functions to drive architectural direction and platform evolution - the remit of the team is to develop the capabilities of the platform as an active participant within the OpenStack community rather than simply consuming and running upstream projects. Responsibilities Define and design the long-term architecture and strategy for multi-tenant Private Cloud.Lead the integration of OpenStack across compute, networking and storage systems.Develop standards for Infrastructure as Code (Terraform), APIs and automation.Drive reliability, scalability and performance improvements across all platform components.Provide technical leadership in collaboration with multiple teams and domains.Guide platform engineering practices including CI/CD, telemetry and observability.Solve complex cross-system challenges in distributed environments and HPC.Champion and enable seamless adoption of the new platform.Partner with the Internal Developer Platform teams to ensure a 1st class self-service experience.Identify and improve workflow friction across multi-disciplinary teams.Collaborate with the OSS community to drive upstream feature adoption. Required Skills And Experience Deep expertise of the OpenStack ecosystem, Linux and distributed systems.Strong software engineering background (Python, APIs, systems design).Extensive experience with Ansible, Terraform and infrastructure automation.Experience with large-scale or multi-region systems and operating at significant scale.Deep understanding of networking, storage and Linux systems both physical and software defined.Proven track record in influencing technical direction across teams. “Nice To Have” Skills And Experience Experience with Kubernetes and cloud-native platforms.Low level debugging, performance and tuning engineering.Full stack expertiseExposure to IDPs such as backstage, Roadie, etc In Return You will shape the direction of a critical engineering platform. You will influence organisation-wide technical decisions. We provide an environment focused on impact, innovation and teamwork. Accommodations at Arm At Arm, we want to build extraordinary teams. If you need an adjustment or an accommodation during the recruitment process, please email Hybrid Working at Arm Arm’s approach to hybrid working is designed to create a working environment that supports both high performance and personal wellbeing. We believe in bringing people together face to face to enable us to work at pace, whilst recognizing the value of flexibility. Within that framework, we empower groups/teams to determine their own hybrid working patterns, depending on the work and the team’s needs. Details of what this means for each role will be shared upon application. In some cases, the flexibility we can offer is limited by local legal, regulatory, tax, or other considerations, and where this is the case, we will collaborate with you to find the best solution. Please talk to us to find out more about what this could look like for you. Equal Opportunities at Arm Arm is an equal opportunity employer, committed to providing an environment of mutual respect where equal opportunities are available to all applicants and colleagues. We are a diverse organization of dedicated and innovative individuals, and don’t discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. Salary Range £126,200 - £170,800 per year