Ait Engineer

"Ait Engineer" is almost certainly a typo or shorthand in a job advert — most commonly for "AIT Engineer", meaning Assembly, Integration and Test (a space and satellite engineering role), and occasionally a mistyping of "IT Engineer". In the space-sector sense, an AIT engineer physically builds up satellites, instruments and spacecraft subsystems from components, then puts them through environmental and functional testing (vibration, thermal vacuum, electrical checks) to prove they will survive launch and work in orbit. They work in cleanrooms and test facilities for satellite manufacturers, instrument builders and space research groups, feeding results back to design teams.

Starting salary: £28k–£35k
Live graduate jobs: 4 open now
Main way in: Graduate schemes at UK satellite and space systems…
They usually ask for: A degree in mechanical, electrical, electronic, aerospace or…

Approximate graduate salary

For the space-sector AIT version, typically around £28,000–£35,000 to start, though this varies widely by employer size, location and whether the role is on a structured graduate scheme. If the advert actually means a general IT engineer role, starting pay is usually lower, roughly around £22,000–£28,000.

What you'd actually do

Working in a cleanroom in a coverall, gloves and overshoes, physically assembling flight hardware — fitting harnesses, mounting units to structural panels, torquing fasteners to a specified value and recording that it was done.</n>
Writing and following test procedures: step-by-step documents saying exactly what is connected to what, in what order, and what reading counts as a pass or a fail.
Running functional tests on electrical ground support equipment (the racks of kit used to power up and talk to the spacecraft on the bench) and logging the results.
Supporting environmental test campaigns — shaking hardware on a vibration table to simulate launch, or running it in a thermal vacuum chamber that mimics the temperature extremes and vacuum of space — often in long shifts because the chamber cannot simply be paused.

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Raising and chasing non-conformance reports when something does not behave as expected, and sitting in review meetings where engineers decide whether to repair, replace or accept the anomaly.
Keeping meticulous records: every item of flight hardware has a documented history, so a lot of the week is paperwork, configuration control and traceability rather than hands-on work.
Liaising with design, mechanical, thermal and electrical engineers to answer 'can this actually be built and tested the way you've drawn it?'

How graduates get in

Graduate schemes at UK satellite and space systems manufacturers and at instrument-building organisations — the most common structured route, usually advertised as space systems, spacecraft or AIT graduate engineer roles.
Direct entry as a junior or assistant AIT engineer, often at smallsat and new-space companies that recruit ad hoc rather than on an annual cycle. Common in the UK's space clusters.
A summer placement or industrial year (a sandwich placement) with a space company or a university space research group — probably the single strongest route in, because cleanroom experience is hard to get otherwise.
Moving across from a related test or manufacturing engineering job in aerospace, defence, automotive or scientific instrumentation. Reasonably common, since the underlying skills (test procedures, environmental testing, quality documentation) transfer well.

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A master's in space or astronautical engineering, or a space-focused MSc after a general engineering or physics degree. Helpful but not essential — this is a hands-on role and practical evidence often counts for more than an extra degree.
If the advert actually means 'IT Engineer' (a desktop, infrastructure and support role), entry is completely different: typically an apprenticeship, service desk start, or a computing degree plus vendor certifications.

What employers ask for

A degree in mechanical, electrical, electronic, aerospace or systems engineering, or physics. Subject genuinely matters here — employers expect engineering fundamentals, not a general numerate degree.
Typically a 2:1, though 2:2 candidates with strong practical experience (placements, Formula Student, rocketry or satellite projects, lab work) are often considered, particularly by smaller companies.
Evidence of hands-on work: building things, soldering, using test equipment, working to a written procedure. Employers are genuinely sceptical of candidates who have only ever simulated or modelled.
Comfort with detailed documentation and quality processes, because space hardware is traceable item by item.

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Security clearance is required for some employers, particularly where work touches defence or government payloads. This usually requires UK residency history, and requirements vary considerably between employers.
Chartered Engineer (CEng) status via the IMechE, IET or Royal Aeronautical Society is a common longer-term expectation rather than an entry requirement; some employers support an accredited degree route towards it.

Skills that matter

Procedural discipline

Flight hardware is built to a written procedure and signed off step by step — improvising, even sensibly, can scrap a unit worth more than the building it sits in.

Practical hands-on ability

You are physically handling, mounting, cabling and connecting hardware, so manual dexterity and care with delicate components are part of the job rather than a bonus.

Test equipment and measurement literacy

Reading multimeters, oscilloscopes, thermocouples and accelerometer data, and knowing when a reading is a real fault versus a measurement artefact, drives nearly every decision you make.

Fault-finding and structured troubleshooting

When a unit fails a test at midnight during a thermal vacuum campaign, you need to isolate the cause methodically rather than start swapping parts.

Clear technical writing

Procedures, test reports and non-conformance reports are read by people who were not in the room, sometimes years later during a failure investigation.

Calm working under schedule pressure

Test campaigns run to booked facility slots and launch dates, often involving shift work and overnight runs that cannot be rescheduled easily.

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

Graduate or junior AIT engineer: working under supervision, executing procedures someone else wrote, learning cleanroom and handling disciplines. Typically the first couple of years, though this varies by employer.
AIT engineer: writing your own procedures, owning the integration and test of a subsystem or instrument, and being the point of contact for its anomalies.
Lead or senior AIT engineer: planning whole test campaigns, booking facilities, coordinating teams across shifts and signing off hardware for delivery. Timelines here vary widely — faster at small companies, slower and more formalised at large primes.
From there the paths diverge: AIT manager or production lead; systems engineering, where you own how the whole spacecraft fits together; design engineering, informed by having seen what actually breaks; or product assurance and quality, which is a natural fit given the documentation side.
Some move into launch campaign work, spacecraft operations, or into test engineering in adjacent sectors such as defence, scientific instruments or automotive, where the test and verification skillset transfers directly.

What people get wrong

“It is a design job — you will be drawing satellites in CAD.”

AIT is largely downstream of design. You build and prove what others have designed, and much of your influence is in telling designers what is impossible to assemble or test.

“It is all hands-on hardware work.”

A large share of the week is documentation — procedures, as-built records, non-conformance reports and configuration control — because every component's history must be traceable for the life of the mission.

“You need a space-specific degree to get in.”

Mechanical, electrical and electronic engineering graduates are routinely hired, and practical build-and-test experience often weighs more heavily than a space-branded qualification.

“The hours are standard office hours.”

Environmental test campaigns run to booked chamber and shaker slots and frequently involve shifts, evenings and weekends in intense bursts, followed by quieter planning periods.

Where this varies

The biggest variation is what the title actually means — check the advert. In space and defence, AIT means Assembly, Integration and Test; in some aerospace and research settings the same work is called AIV (Assembly, Integration and Verification) and the two terms are often used loosely. Some IT recruiters also abbreviate or mistype "IT Engineer", which is a completely different, infrastructure-support job. Within the space version, large established manufacturers tend to have highly formalised processes, narrow role definitions and long programme timescales, while smaller smallsat companies expect one engineer to cover mechanical, electrical and test work on much faster build cycles. Geography matters too: UK space work clusters around particular regions rather than being spread evenly, so relocation is often part of the decision. Security clearance requirements also differ sharply between employers.

See all 4 live Ait Engineer jobsFrom employers' own careers sites, updated daily Tailor your CV for this roleFree with an account, 3 a month

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.