1 to 25 of 33 Security Cleared Jobs in Portsmouth

Security Architect

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
Security Architect (Defence DevSecOps & AI/ML) Portsmouth/Hybrid (3 days onsite) £645 per day Inside IR35 5-Month Contract Active SC or DV Clearance Required Are you an experienced Security Architect looking to shape the future of secure AI and cloud technologies within … Defence sector? We are looking for a Security Architect to join a high-profile defence programme, leading the design and assurance of secure AI/ML solutions across multi-cloud and edge environments. This is an opportunity to play a key role in delivering innovative capabilities while ensuring ...

Cyber Security Consultant

Hiring Organisation
Oscar Associates (UK) Limited
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
£50,000
Cyber Security Consultant | £40-52k DOE | Portsmouth (Hybrid) Are you passionate about cyber security and enjoy helping organisations solve complex security challenges? We're partnering with a growing consultancy that is looking to strengthen its cyber capability with the addition of a Cyber … Security Consultant. This is an opportunity to join a collaborative team delivering security and risk management services to clients operating in complex and highly regulated environments. You'll work closely with customers to understand their business risks, assess their cyber security posture, and deliver ...

Software Engineer C++

Hiring Organisation
Sirius Digital
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
benefits, pension (7% contribution), 25 days holiday & life insurance
internal BPSS check prior to gaining site access. Candidates will also need to either be willing and eligible or to undergo a Security Clearance check (SC level) or hold a current SC clearance upon starting their employment with the company. To gain SC clearance you will normally need ...

Senior Software Engineer

Hiring Organisation
Sirius Digital
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
benefits, pension (7% contribution), 25 days holiday & life insurance
gaining site access. Candidates will also need to either hold a current SC clearance or be willing and eligible to undergo a Security Clearance check (SC level) upon starting their employment with the company. To gain SC clearance you will normally need at least 5 years UK residency. ...

Service Delivery Manager

Hiring Organisation
Carbon 60
Location
Portsmouth, Hampshire, Southwick, United Kingdom
Employment Type
Contract
Description Job Title: NDH(D) Service Delivery Manager Contract: 12-month contract (potential for extension) Security: SC required or ability to obtain Purpose of the Role The Service Delivery Manager supports the delivery and continuous improvement of the NDH(D) service in alignment with ITIL v3 and Defence ...

Principal Software Engineer

Hiring Organisation
Sirius Digital
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
benefits, pension (7% contribution), 25 days holiday & life insurance
gaining site access. Candidates will also need to either hold a current SC clearance or be willing and eligible to undergo a Security Clearance check (SC level) upon starting their employment with the company. To gain SC clearance you will normally need at least 5 years UK residency. ...

Lead Security Architect

Hiring Organisation
Henderson Scott
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£640.00 - £700.00 per day
Lead Security Architect (Defence DevSecOps and AI/ML) Location: Portsmouth Working model: Remote 50% and 50% onsite Start date: approx. 24/08/2026 Duration: 23/11/2026 Rate: £640 to £700 inside IR35 through an FCSA approved umbrella Active MOD SC clearance … Qualifications 5+ years in Cyber Security, proven multi-cloud/edge architecture. Defence experience; familiarity with UK guidance; at least MOD SC cleared and UK Sole national. Certifications: CISSP (equivalent), TOGAF Key Attributes This role requires essential skills of adaptability and a pragmatic and positive attitude towards ...

Business Analyst

Hiring Organisation
SR2
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £470/day Outside IR35
collaborative digital team delivering business-critical projects within a fast-paced agile environment. Working within a secure government environment, applicants must have active Security Check (SC) clearance in order to apply. You'll play a key role in bridging the gap between technical teams and the wider business ...

Customer Success Executive

Hiring Organisation
Novatech Ltd
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£28,000
ownership, enjoys solving problems and is motivated by contributing to both customer success and commercial growth. As this role works with defence customers, security clearance (such as SC and BPSS) is required, we will fund the process for you to obtain this. This role is ideal for someone ...

CGEMJP - Platform Engineer

Hiring Organisation
CBSbutler Holdings Limited
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 558 Daily
Inside IR35) Location: Portsmouth (Hybrid - 2 days every other week on site, remainder remote) Contract: 6 months+ Clearance: Active SC Security Clearance required Overview We are seeking a Platform Engineer/DevOps Specialist to join a highly secure and complex engineering environment, supporting the modernisation and maturity uplift ...

Business Development Manager

Hiring Organisation
Comoro
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£50000 - £65000/annum Uncapped OTC & Excellent Bens
customers. Either way, you’ll be confident navigating the sector and turning insight into opportunity. SC clearance is required, ideally you will be SC cleared now but the company will take you through the process if not. ...

Product Manager

Hiring Organisation
SR2
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
£475 - £525/day Outside IR35
continues to evolve in line with strategic objectives and user needs. Due to the nature of the work, applicants must already hold active Security Check (SC) clearance to be considered. You'll play a key role in leading product direction, working closely with senior stakeholders, technical teams ...

Systems Engineer EMC / TEMPEST

Hiring Organisation
Morson Edge
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£52.32 - 70.00 per hour + Inside IR35
sign off of electrical equipment installation, preferably with TEMPEST and/or EMC experience Verification, Validation & integration Transition to Operation Ability to safeguard security classified and/or export-controlled data. Desirable Preferred Industry Knowledge Knowledge in the following areas is preferred but not essential: Military ground site ...

Systems Engineer

Hiring Organisation
Morson Edge
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£60 per hour + Inside IR35
products and services. - This support spans all aspects of the system lifecycle. The successful candidate will be subject to UK National Security Clearance in order to undertake related work in accordance with business needs. Tasks and accountabilities Your main tasks and responsibilities will include (from concept development ...

Platform Engineer

Hiring Organisation
Experis
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 - 598 Daily
already or SC Eligible) Location: Portsmouth (Hybrid - 2 days every other week on site, plus remote working) Job Description: DevSecOps (continuous integration, automation, security scanning); Scripting: Bash/Linux/Python; Automation and containerisation; Solution based mindset; DevOps culture; Python; Apache Kafka; Kubernetes; Docker; CICD; Secure development … different stages of maturity. Technical environment Cloud environment : Which platform is primarily used (AWS, Azure, hybrid)? Hybrid DevSecOps expectations : How deep is the security element (e.g. security tooling, compliance requirements, air-gapped constraints)? Compliance requirements, air-gapped constraints, ITAR and special access compartment considerations. AI/ ...

Principal Systems Engineer

Hiring Organisation
Sirius Analysis Limited
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
benefits, pension (7% contribution), 25 days holiday & life insurance
technical knowledge in systems engineering within defence or similar high-integrity domains. Experience leading technical teams and projects within the defence, aerospace, or security sectors. Familiarity with defence acquisition frameworks Other Requirements: Candidates must have an existing right to live and work in the UK. Candidates must … willing to undergo an internal baseline personnel security standard check prior to starting their employment with the company. Candidates must be willing and eligible to complete a United Kingdom Security Vetting (UKSV) security clearance application to the Security Check (SC) level upon ...

CGEMJP - Platform Engineer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 558 Daily
Inside IR35) Location: Portsmouth (Hybrid - 2 days every other week on site, remainder remote) Contract: 6 months+ Clearance: Active SC Security Clearance required Overview We are seeking a Platform Engineer/DevOps Specialist to join a highly secure and complex engineering environment, supporting the modernisation and maturity uplift … Work hands-on with Kubernetes, Docker, and containerised workloads Support and evolve platforms across AWS and Azure environments Implement secure development practices, including security scanning and compliance controls Contribute to platform modernisation and maturity uplift across two environments at different stages Operate within air-gapped and restricted access ...

CGEMJP00345529 - Platform Engineer

Hiring Organisation
CBSbutler Holdings Limited
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £558 per day + inside ir35
Inside IR35) Location: Portsmouth (Hybrid - 2 days every other week on site, remainder remote) Contract: 6 months+ Clearance: Active SC Security Clearance required Overview We are seeking a Platform Engineer/DevOps Specialist to join a highly secure and complex engineering environment, supporting the modernisation and maturity uplift … Work hands-on with Kubernetes, Docker, and containerised workloads Support and evolve platforms across AWS and Azure environments Implement secure development practices, including security scanning and compliance controls Contribute to platform modernisation and maturity uplift across two environments at different stages Operate within air-gapped and restricted access ...

Project Manager

Hiring Organisation
Sirius Digital
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
£60,000
Candidates must have an existing right to live and work in the UK. Candidates must be willing to undergo an internal baseline personnel security standard check prior to starting their employment with the company. Candidates must be willing and eligible to complete a United Kingdom Security Vetting (UKSV) security clearance application to the Security Check (SC) level upon starting their employment with the company. To gain SC Clearance you will normally need at least 5 years' UK residency. ...

Senior Data Scientist

Hiring Organisation
Sirius Analysis Limited
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
benefits, pension (7% contribution), 25 days holiday & life insurance
Candidates must have an existing right to live and work in the UK. Candidates must be willing to undergo an internal baseline personnel security standard check prior to starting their employment with the company. Candidates must be willing and eligible to complete a United Kingdom Security Vetting (UKSV) security clearance application to the Security Check (SC) level upon starting their employment with the company. To gain SC Clearance you will normally need at least 5 years' UK residency. ...

Senior Systems Engineer

Hiring Organisation
Sirius Analysis Limited
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
benefits, pension (7% contribution), 25 days holiday & life insurance
Candidates must have an existing right to live and work in the UK. Candidates must be willing to undergo an internal baseline personnel security standard check prior to starting their employment with the company. Candidates must be willing and eligible to complete a United Kingdom Security Vetting (UKSV) security clearance application to the Security Check (SC) level upon starting their employment with the company. To gain SC Clearance you will normally need at least 5 years' UK residency. ...

SC Cleared Site Coordination Installation Design Authority

Hiring Organisation
Experis
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 - 700 Daily
Title: SC Cleared Site Coordination Installation Design Authority Location: Portsmouth Duration: 12 months (0 hour contract as and when required) Rate: TBC Must be willing and eligible to go through the SC Clearance process Our client, a reputable organisation in the defence sector, is seeking a dedicated Site Coordination … Authority to join their team in Portsmouth. This is an excellent opportunity for professionals with a strong background in MOD ICT standards and security to contribute to high-profile projects. What you'll be doing: Ensuring compliance with MOD Installation Standards, policies, and governance related to ICT infrastructure. ...

Software Developer

Hiring Organisation
Morson Edge
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£55 per hour + L6 - Do not get any uplift all hours paid at Standard R
Software Engineer – Java Portsmouth – Hybrid, minimum 3 days per week onsite 12-month contract with potential extension £55 per hour, umbrella Active SC clearance required We are looking for an experienced Software Engineer to join ...

Lead Security Architect

Hiring Organisation
17918
Location
Portsmouth, Hampshire, United Kingdom
Lead Security Architect (Defence DevSecOps and AI/ML) Location: Portsmouth Working model: Remote 50% and 50% onsite Start date: approx. 24/08/2026 Duration: 23/11/2026 Rate: £640 to £700 inside IR35 through an FCSA approved umbrella Active MOD SC clearance … sole UK Nationality is required for consideration. Mission: Own security architecture and the integration roadmap for AI/ML across multi-cloud and... WKCL1_UKTJ ...

Storage / Backup Engineer Hybrid

Hiring Organisation
Sanderson Government and Defence
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
programme within the Defence sector. This is an exciting contract opportunity for a technically strong infrastructure professional who thrives in a fast-paced, security-focused environment and is keen to work on mission-critical platforms. The successful contractor will be responsible for the administration, support and optimisation … other secure sectors Knowledge of VMware, Windows and Linux infrastructure Exposure to automation and infrastructure tooling Candidates must be eligible to undergo UKSV Security Check (SC) clearance, with sponsorship available for suitable applicants who do not currently hold active clearance. This is an excellent opportunity to contribute ...