Internal mobility: a route into cleared engineering

Internal mobility is now a practical route into cleared engineering, because moving and upskilling trusted existing staff fills specialist roles faster than waiting on a thin external market.
Author

Jordan Van Tonder

Job Title

Strategy and Delivery Lead

What does defence and security hiring look like right now?

The engineering talent market is tight, and defence feels it sharply. Across the sector, 76% of engineering employers struggle to recruit for key roles, with technical and specialist skills topping the list the Institution of Engineering and Technology's 2025 skills research. That pressure sits on top of a workforce that is already restless: 79% of UK technical professionals plan to change employers in 2026 recruitment firm Rise Technical's 2025/26 Insights Report.

Demand is not the problem. Defence expenditure with industry supported a total of 272,000 direct jobs in 2023/24, an increase of 11% on the previous financial year the Ministry of Defence's supported employment estimates for 2023/24. The sector is growing and hiring, but the pool of people it can draw from is not keeping pace.

Why is internal mobility becoming the main route into cleared engineering?

Cleared engineering has a bottleneck the wider market does not. Security clearance takes time, and it favours people who are already known, already vetted and already inside a trusted environment. So when external supply is thin, the fastest honest route to a cleared role is often to move someone you already employ.

The wider engineering economy is already turning this way. A full 40% of manufacturers are looking to upskill their existing workforce, specifically for redeployment as automation and digitalisation reshape roles, and that figure rises for firms with more than 1,000 employees Make UK's Executive Survey 2026. For defence, the logic is even stronger because clearance makes an internal move the shorter path.

There is also a supply signal worth watching at the junior end. In engineering, entry-level hiring has fallen to -19% while senior hiring sits at -10%, a 9-percentage-point gap a 2026 GOV.UK snapshot of entry-level hiring in the UK. If fewer people enter at the bottom, employers who do not grow their own cleared talent will find the gap widening every year.

Can defence employers rely on international recruitment to fill the gap?

Not really, and the data explains why. For the engineering profession, the vast majority of new hires already come from the resident labour force, indicating low reliance on international recruitment a 2025 GOV.UK review of professionals in IT and engineering. In cleared defence work, where nationality and residency requirements narrow the field further, that domestic reliance is near total.

So the honest picture is this: most cleared engineers will come from the people already here. That makes retention and redeployment a strategy, not an afterthought. It is no surprise that skills shortages (75%), recruitment (36%) and talent retention (32%) sit at the top of manufacturers' barriers to growth Barclays Corporate's 2024 research on the UK manufacturing skills shortage.

How do you hire well for cleared engineering?

Start by mapping the clearance you already hold. Your most valuable candidates are often the cleared people doing an adjacent job today, not a stranger on the open market. Build a visible internal pipeline: let engineers see which cleared roles exist, what skills they need, and how to get there.

  • Map your cleared workforce first, then match skills gaps to people you can redeploy or upskill before you advertise externally.
  • Treat clearance as an asset to protect: a known, vetted engineer is quicker to move than a new hire is to clear.
  • Grow your own at entry level, because the junior hiring gap means the external pool shrinks over time.
  • Make internal moves transparent, so trusted staff stay rather than joining the 79% planning to change employers Rise Technical's 2025/26 Insights Report.
  • When you do go external, prioritise the resident labour force, where almost all engineering hires already come from.

The aim is simple. Keep good people, move them towards the roles that matter, and go to the external market with a clear brief for the specialist skills you genuinely cannot build in-house.

How can we help you fill cleared engineering roles?

When internal moves leave a gap, speed and precision matter. We search a database of 15 million candidates to surface people who match your brief, including the specialist and resident-labour-force talent defence employers depend on. You get a ranked shortlist in under 30 seconds, and we manage the process end to end so your team can focus on clearance and onboarding. Our recruitment agent manages recruitment end to end for 8% on a successful hire, with no monthly fee and no upfront cost, through Reed.ai. Tell us about your cleared engineering role today.

Sources

Jordan Van Tonder
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