Clearance is a schedule item, not a formality
A substantial share of UK space work touches defence, government programmes or export-controlled technology, and the eligibility rules that follow shape recruitment more than any other factor. The mistake that costs most is treating clearance as paperwork to sort out once someone has accepted. It is a vetting process run over weeks to months depending on the level, and a role that needs it before day one has a start date months after the offer.
It is also sponsored rather than owned. An individual is cleared in connection with a role that requires it — which means you cannot ask candidates to arrive holding one unless they hold it through current or recent employment, and it means the cost and the calendar of obtaining one sit with you.
BPSS is not a clearance
The Baseline Personnel Security Standard is a pre-employment check — identity, right to work, criminal record and employment history. It is quick, and it is routinely and wrongly described in adverts as though it were a security clearance.
SC and DV are different orders of magnitude
Security Check and Developed Vetting differ in depth, in the residency history they expect, and in how long they take — DV substantially longer than SC. Treat the level the programme actually requires as a planning input, not a detail.
Levels, criteria and current timescales are published and change periodically, so check the position at the time you are hiring rather than relying on what was true for your last programme — national security vetting guidance is the authoritative source.
Sponsorship does not solve clearance
This is the single most valuable thing to understand before writing a space advert, and the point most often missed. The right to work in the UK and eligibility for security clearance are separate questions answered by separate systems. A Skilled Worker visa establishes that someone may be employed here; it says nothing about the residency history that vetting for a cleared role examines.
The practical consequence is that for a role requiring clearance, sponsorship is not a lever you can pull to widen the pool. A candidate who would be an excellent hire and whom you would happily sponsor may still be ineligible for the clearance the programme requires, and no amount of willingness on either side changes that. Establishing which of your vacancies genuinely require clearance is therefore also the decision about which of them can recruit internationally at all.
If a role does not require clearance, say so explicitly. Candidates assume space work is cleared by default, and an uncleared role that stays silent loses applications it never needed to lose.
Export control is a separate restriction again
Alongside clearance, some programmes are subject to export control — UK controls on strategic technology, and where US-origin technology or technical data is involved, the American regime that governs it. These can restrict who may access particular information by nationality, independently of any clearance held and independently of immigration status.
For hiring purposes the point is not to become an expert but to ask the question early, of whoever owns compliance for the programme, and to write the advert against the answer. A restriction discovered after an offer has been made is an offer withdrawn, which is damaging in a sector where everyone knows everyone.
How to sequence a cleared hire
-
1
Establish the requirement before the advert
Which level, whether it must be held on day one, and whether there is uncleared work the person could do meanwhile. That last question is frequently unasked and often changes the answer.
-
2
Say it plainly in the advert
State the level, and state whether you will sponsor the clearance for the right candidate. Cleared engineers filter on this line first, and it is the most persuasive sentence in the advert for the audience you want.
-
3
Ask about existing clearance early and carefully
Whether someone currently holds or has recently held clearance is a reasonable question. The details of their vetting are not, and asking for them marks you as an employer that mishandles this.
-
4
Plan the gap between offer and start
If clearance is being sponsored, agree what the candidate does in the interim and keep them engaged through it. Silence during a months-long wait is where these hires are lost.
Where it goes wrong
The failures worth designing out
With eligibility settled, the rest of the search is about reaching engineers who are mostly not currently in the sector — which is covered in how to hire space engineers.
See how others state it
Live adverts on this board are the quickest way to see how comparable programmes phrase their clearance requirements.