HPC Systems Administrator

• Own the day-to-day administration of compute nodes, workload schedulers, parallel storage, high-speed interconnects, and licence servers
• Ensure the environment remains highly available and consistently performant through proactive monitoring, patching, firmware updates, and incident response
• Administer the workload scheduler (Slurm, PBS Pro, or similar), managing queues, fair-share policies, accounting, and quotas to optimise resource utilisation
• Manage the simulation software stack and user environments using tools such as Lmod, Spack, or EasyBuild
• Collaborate with hardware and software vendors to resolve support cases, process RMAs, and ensure upgrade quality
• Automate operational workflows using Bash, Python, and Ansible to improve system efficiency and reduce manual intervention
• Maintain the strict security posture required for cleared work and support ongoing compliance reviews
• Onboard users and maintain comprehensive documentation to empower engineers to self-serve

• have administered Linux systems within a production HPC or large shared compute environment
• have hands-on experience managing workload schedulers such as Slurm, PBS Pro, LSF, or similar
• possess production experience with parallel filesystems (Lustre, BeeGFS, or GPFS) and high-speed interconnects (InfiniBand or RoCE)
• are capable of scripting and automating complex workflows with Bash, Python, and Ansible
• can effectively manage commercial simulation software (CAE, CFD, or EM) and licence servers, including FlexLM

Note: We operate in an industry where women, as well as other minority groups, are systematically under-represented. We encourage you to apply even if you don’t meet all the listed qualifications; ability and impact cannot be summarised in a few bullet points.

• Experience administering Altair or Siemens simulation suites
• A background working within classified or strictly regulated environments
• Expertise in GPU computing, including CUDA and NVIDIA toolchains, alongside MPI stack management
• Familiarity with HPC containers using Apptainer, Enroot, or Pyxis
• Experience with identity management systems such as Keycloak, FreeIPA, Active Directory, or Kerberos
• Competence in infrastructure-as-code practices using tools such as Terraform

• Helsing’s work is important. You’ll be directly contributing to the protection of democratic countries while balancing both ethical and geopolitical concerns

• The work is unique. We operate in a domain that has highly unusual technical requirements and constraints, and where robustness, safety, and ethical considerations are vital. You will face unique Engineering and AI challenges that make a meaningful impact in the world

• Our work frequently takes us right up to the state of the art in technical innovation, be it reinforcement learning, distributed systems, generative AI, or deployment infrastructure. The defence industry is entering the most exciting phase of the technological development curve. Advances in our field of world are not incremental: Helsing is part of, and often leading, historic leaps forward

• In our domain, success is a matter of order-of-magnitude improvements and novel capabilities. This means we take bets, aim high, and focus on big opportunities. Despite being a relatively young company, Helsing has already been selected for multiple significant government contracts

• We actively encourage healthy, proactive, and diverse debate internally about what we do and how we choose to do it. Teams and individual engineers are trusted (and encouraged) to practise responsible autonomy and critical thinking, and to focus on outcomes, not conformity. At Helsing you will have a say in how we (and you!) work, the opportunity to engage on what does and doesn’t work, and to take ownership of aspects of our culture that you care deeply about

These are the core benefits across all locations, there may be additional benefits in certain locations.

Helsing is an equal opportunities employer. We are committed to equal employment opportunity regardless of race, religion, sexual orientation, age, marital status, disability or gender identity. Please do not submit personal data revealing racial or ethnic origin, political opinions, religious or philosophical beliefs, trade union membership, data concerning your health, or data concerning your sexual orientation.