Hpc Operations Engineer

An HPC (high-performance computing) operations engineer keeps large clusters of linked computers running so that researchers and engineers can run big calculations - things like climate models, drug discovery simulations, crash modelling or AI training. The job is mostly Linux system administration at scale: installing and patching software, managing the job scheduler that queues users' work, chasing hardware faults, and helping users get their code to run efficiently. You'd typically work for a university or research institute, a national computing facility, a government or defence organisation, a weather or engineering firm, or a company that builds and supports HPC systems for others.

Starting salary: £28k–£38k
Live graduate jobs: Search all jobs
Main way in: Direct entry to a junior or graduate HPC/systems post…
They usually ask for: A degree in computer science, physics, maths, engineering, or…

Approximate graduate salary

Typically around £28,000–£38,000 to start, though this varies widely. University and public research posts usually sit at the lower end and are set by published pay grades; defence, energy, finance and HPC vendors tend to pay more, and London or clearance-required roles more again.

What you'd actually do

Watching monitoring dashboards and alerts for failed compute nodes, overheating hardware, full filesystems or stuck jobs, and working through whatever the overnight alerts threw up
Managing the batch scheduler (software such as Slurm or PBS that decides whose job runs where and when) - adjusting queues and priorities, investigating why a user's job sat pending for two days, and dealing with people who think their work should jump the queue
Handling user support tickets: a researcher's simulation crashed, a piece of scientific software won't compile, someone needs a particular version of a maths library or a Python environment built for them
Installing and updating software on the cluster, often using module systems or build tools that let dozens of versions of the same package coexist without breaking anyone's workflow

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Working with parallel filesystems and storage - clearing space, diagnosing slow input/output, restoring data, and explaining to users why writing a million tiny files is making everyone else's jobs slow
Scripted automation and configuration management, so that rebuilding a node or rolling out a change across hundreds of machines is repeatable rather than manual
Planned maintenance work: patching for security vulnerabilities, firmware updates, occasionally physical work in the data centre racking hardware, swapping disks or tracing cabling, and acceptance-testing new kit when the system is upgraded

How graduates get in

Direct entry to a junior or graduate HPC/systems post advertised by a university research computing team or a national facility - this is the most common route, and these jobs are often advertised on university vacancy pages rather than mainstream graduate schemes
Graduate schemes at large engineering, energy, defence, weather or financial organisations that run their own compute clusters - here you may rotate through infrastructure teams and land in HPC, rather than applying to HPC directly
Moving across from a research background: many HPC staff started as PhD students or postdocs who became the person in the group who understood the cluster, then took a professional support role. A PhD is common in this field but genuinely not required
Starting in general Linux systems administration, DevOps or data centre operations and moving sideways into HPC once you have solid Linux and automation experience

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Vendor and integrator routes - companies that build, install and support HPC systems for customers hire graduates into support and deployment engineering roles
Apprenticeships and technician posts in university IT or research computing, which some people use as a stepping stone; a degree is usual but not an absolute barrier if you can demonstrate the skills

What employers ask for

A degree in computer science, physics, maths, engineering, or another numerate or computational science subject. The subject matters less than being able to show you can work with Linux and code - plenty of HPC staff come from chemistry, earth sciences or astronomy backgrounds
Usually a 2:1 or above where a classification is specified, though many research-computing employers care far more about demonstrable practical skill than about your grade
Real, hands-on Linux experience - using the command line properly, not just having installed Ubuntu once. This is the single most consistent requirement across adverts
Scripting ability, typically Bash and Python; some roles also want C, C++ or Fortran familiarity because that's what a lot of scientific code is written in

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Any exposure to clusters, job schedulers, parallel programming (MPI, OpenMP), containers, cloud compute or configuration management tools is a strong advantage. Home lab projects, a dissertation that used a university cluster, or a summer placement all count
Some roles - particularly in defence, nuclear, government and certain national facilities - require UK security clearance, which usually means UK residency for a set period. Check adverts carefully as this can rule candidates in or out early

Skills that matter

Linux systems administration

Essentially all HPC runs on Linux, so everything from diagnosing a node failure to building software for a user happens at the shell.

Scripting and automation

You cannot manage hundreds or thousands of nodes by hand, so routine work gets wrapped in scripts and configuration management.

Methodical fault diagnosis

When jobs fail, the cause could be the code, the scheduler, the network, the storage or a dodgy memory module, and you need to narrow it down without guessing.

Translating between researchers and infrastructure

Users often describe a problem in terms of their science, and you have to work out what that means technically - and explain back, without condescension, why their approach is hammering the filesystem.

Understanding of parallel computing concepts

Knowing roughly how MPI, threading and interconnects work lets you tell a genuine system fault from a user whose code simply doesn't scale.

Working calmly under outage pressure

When a shared system is down, a lot of people's work stops at once, and you need to triage and communicate clearly rather than disappear into the problem.

Putting these on a CV? We counted which skills 12,914 live graduate adverts ask for, and what to do with the answer — part of our application advice.

Where it leads

Junior or graduate HPC/systems engineer - supervised work on tickets, routine maintenance, learning the cluster and the scheduler. Expect a year or two before you're trusted with major changes, though this varies by employer.
HPC systems engineer / research software or research computing engineer - owning parts of the system (storage, scheduler, software stack, monitoring), leading upgrades, and taking part in on-call rotas where they exist.
Senior or lead engineer, or specialising: storage and parallel filesystems, networking and interconnects, performance optimisation, or research software engineering where you spend more time improving users' code than running machines.
Branching points that are common from here: HPC architect or technical lead designing the next system and writing the technical side of procurement; service or infrastructure manager with budget and team responsibility; or moving into cloud infrastructure, DevOps/SRE, or vendor-side solutions engineering where HPC experience is well paid and in demand.
Timelines vary widely. University and public-sector teams tend to have flat structures and slower, grade-based progression; vendors, finance and energy companies often move faster and pay more. Some people deliberately stay technical rather than managing.

What people get wrong

“It's a research job where you do science on supercomputers.”

Operations is a service and infrastructure role - you keep the machine running for other people's science. Some posts do include optimising user code or collaborating on projects, but the day-to-day core is systems work and user support. If you want to do the science, look at research software engineer or postdoc routes instead.

“You need a PhD, or at least a strong physics/maths background.”

Lots of HPC engineers have PhDs because that's a common path in, but employers are really buying Linux, networking, storage and automation skills. A capable sysadmin who can learn the scientific vocabulary is often more useful than a physicist who has never administered a server.

“It's all cutting-edge exascale hardware and AI accelerators.”

A fair chunk of the week is unglamorous: ticket queues, patching, filesystem quotas, firmware bugs, chasing a vendor about a replacement part, and occasionally crawling behind a rack. The exciting new hardware arrives, then has to be made boringly reliable.

“Cloud computing is making HPC operations obsolete.”

Plenty of HPC has moved to or alongside cloud, but someone still has to design, schedule, budget and troubleshoot it, and large on-premise systems remain standard in research, weather forecasting, defence and engineering. The skills transfer in both directions rather than disappearing.

Where this varies

The job looks quite different depending on who you work for. In universities and national research facilities you serve a huge mix of academic users with wildly varying skill levels, the work is collegial, pay follows fixed grades and there's often training budget and conference travel. In industry - weather services, aerospace, automotive, oil and gas, pharmaceuticals, finance - you support a smaller set of production workflows where downtime has direct commercial cost, so change control is stricter and on-call is more likely. At HPC vendors and integrators you may travel to customer sites to install and commission systems. Defence and government work adds security clearance and restrictions on what you can discuss or take home. Team size also matters: at a small site you'll touch hardware, networking, storage and user support all in one week; at a large facility you'll specialise in one of those.

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General guidance about the role across the UK market, not about any specific employer. Entry routes and requirements vary — always check the individual job advert.