Principal Systems Engineer
Leonardo
Job Description: Salary: £53,500 to £68,000 Leonardo UK operates a grade-based salary framework with broad bands.
Any
Live cleared roles
Security cleared jobs
732 live cleared roles. Every listing states the clearance it needs, so you can rule out the ones you're not eligible for before you apply. Our AI, Archer, checks your experience against the rest.
- Posted 30+ days ago
- Posted 30+ days ago
Principal Systems Engineer
Leonardo
Job Description: Are you an experienced Systems Engineer or Scientist with an Electronics background?
Electrical EngineerEngineering ManagerPrincipal EngineerSystems Engineer +1 - Posted today
Principal Systems Engineer
BAE Systems
Job Title: Principal Systems Engineer Location: Portsmouth Naval Base We offer a range of hybrid and flexible working arrangements – please speak…
Application ArchitectSystems EngineerPrincipal EngineerR&D Engineer +1 - Posted 30+ days ago
Job Description: Your impact Do you want to grow your career in network engineering and work on projects that safeguard the UK’s national interests?
Network EngineerNetwork ArchitectSystems EngineerPrincipal Engineer - Posted 22 days ago
Principal Test Development Engineer
Raytheon UK
Date Posted: 2026-07-27 Country: United Kingdom Location: Glenrothes, Fife Position Role Type: Onsite At RTX, the world's largest aerospace and…
Embedded EngineerEmbedded DeveloperC# / .Net DeveloperElectronics Engineer +7 - Posted 4 days ago
Principal Test Solutions Engineer
Leonardo
Job Description: Job Description: Salary: £53, 260 to £71,400 Leonardo UK operates a grade-based salary framework with broad bands.
Systems EngineerEmbedded EngineerSafety EngineerHardware Test Engineer +2 - Posted 30+ days ago
Principal Test Systems Engineer
Leonardo
Job Description: Leonardo has an exciting vacancy for a Principal Test Systems Engineer, based at our dedicated Test Facility in Southampton.
Any - Posted 30+ days ago
Principal Thermal Engineer
Leonardo
Job Description: Your impact You’ll work at the heart of multidisciplinary project teams, advising on thermal performance and ensuring our products…
Mechanical EngineerAerospace Engineer - Posted 30+ days ago
Principal Wintel Engineer
Leonardo
Job Description: Leonardo is looking for a 3rd Line Wintel Infrastructure Engineer to join our collaborative and skilled team supporting a critical…
Windows Mobile DeveloperCloud EngineerInfrastructure ArchitectOperations Engineer +6 - Posted 30+ days ago
Principal and Lead FPGA Engineers
Leonardo
Job Description: Your impact Would you like to deliver the complex Firmware that forms part of our self-protection systems installed on fast jet…
Firmware EngineerEmbedded Engineer - Posted 30+ days ago
Job Description: Your impact Are you a Systems Engineer who loves contributing to the UKs Defence Industry and making impactful change?
Systems Engineer - Posted 6 days ago
Process Operator
Southern Water
Closing Date 11/08/2026 Wastewater Process Operator Location: Chichester - you will also need to be willing to travel across multiple sites and have…
Any
Clearance levels these roles need
- Security Cleared (SC) 607
- Developed Vetting (DV) 120
- Previously Security Cleared (SC) 5
Some employers require you to hold clearance already; others sponsor vetting for the right candidate. hackajob doesn't sponsor or process clearances itself.
Companies hiring cleared roles
- Leonardo 213
- Kainos 81
- BAE Systems Digital Intelligence 75
- BAE Systems 66
- Raytheon UK 49
- DXC Technology 44
- Made Tech 24
- Solirius Reply 21
Where cleared roles are based
- London 111
- Edinburgh 58
- Belfast 50
- Luton 49
- Gloucester 36
- Farnborough 34
- Southampton 32
- Yeovil 27
- Manchester 26
- Basildon 25
- Newcastle upon Tyne 25
- Bristol 24
FAQs
Cleared roles on hackajob, answered.
How many security clearance jobs are there in the UK?
There are 732 live cleared roles on hackajob in the UK right now. The list updates daily as employers post and close roles.
What clearance levels do these roles require?
These roles ask for Security Cleared (SC), Developed Vetting (DV), Previously Security Cleared (SC). Each listing states the level it requires, so you can rule out the ones you are not eligible for before you apply.
What kind of jobs can you get with a security clearance?
On hackajob the cleared roles are mostly Systems Engineer, Principal Engineer, Cloud Engineer, Platform Engineer, DevOps Engineer. Clearance is a requirement attached to the work, not a job type in itself, so cleared roles span the same disciplines as uncleared ones.
Do I need an active clearance to apply?
It depends on the role. Some employers require you to hold SC and DV clearance already; others will sponsor the vetting for the right candidate. Each listing states which, and hackajob does not sponsor or process clearances itself.
Which companies are hiring cleared roles in the UK?
Leonardo, Kainos, BAE Systems Digital Intelligence, BAE Systems, Raytheon UK are among the employers with live cleared roles on hackajob.
Where are these roles based?
Most live cleared roles are in London, Edinburgh, Belfast, Luton, Gloucester. Cleared work tends to cluster around the sites that need it, so the locations are narrower than for uncleared roles.
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