Cyber security researcher Work, Jobs (with Salaries)

Penetration Tester - Vulnerability Researcher
Thales —Bristol
- Full-time
- Management
- Computer Science
- Engineering
- Annual leave
- Employee assistance programme
1d
PhD Researcher Teaching Opportunities
PhD Researchers Scheme —Oldham
- Part-time
- Doctoral degree
- Classroom experience
- AI
Quick apply
Lead User Researcher
NHS England —London
- £79,504 - £91,609 a year
- Full-time
- Continuous improvement
- Communication skills
- Annual leave
5d
Principal Security Researcher
Microsoft —Cheltenham
- £93,500 - £161,800 a year
- Full-time
- Azure
- English
- Scripting
4d
Principal User Researcher
Gen Digital Inc. —London
- Full-time
- Hybrid work
- Communication skills
- Employee stock purchase plan
- Annual leave
Quick apply
14d
Vulnerability Researcher - Consultant
Awerian —Cambridge
- Full-time
- C++
- Bachelor's degree
- Machine learning
- Life insurance
Quick apply
Lead Cyber Research Engineer
Secret Intelligence Service —London
- £53,267 - £62,599 a year
- Java
- C++
- Mentoring
- Annual leave
- Flexible schedule
Senior Consultant | Cybersecurity - Incident Response
FTI Consulting —London
- Full-time
- Windows
- Analysis skills
- Bachelor's degree
Lead Cyber Research Engineer
MI5 - The Security Service —London
- £53,267 - £62,599 a year
- Full-time
- Java
- C++
- Presentation skills
- Annual leave
Director Of Information Security
UK Biobank —Stockport
- Monday to Friday
- Hybrid work
- Azure
- AWS
- Computer networking
- Free parking
- Relocation assistance
2d
Senior Account Executive, EMEA Enterprise
HackerOne —London
- £100,000 a year
- Full-time
- Remote
- Sales
- Salesforce
- AI
- Annual leave
- Employee assistance programme
Senior Red Team Operator
G-Research —London
- Bar
- Windows
- Analysis skills
- Annual leave
Principal Product Cybersecurity Assurance Engineer
Humanoid —London
- Full-time
- IT
- Leadership
- Communication skills
- Annual leave
Quick apply
Sales Development Representative, Enterprise EMEA
HackerOne —London
- £39,000 - £44,000 a year
- Full-time
- Remote
- Sales
- Salesforce
- Business development
- Annual leave
- Employee assistance programme
13d
Senior CSIRT Analyst
G-Research —London
- Bar
- Azure
- AWS
- Annual leave
Software Team Lead
Roke —Woking
- Full-time
- Hybrid work
- Azure
- Java
- AWS
Software Team Lead
Roke Manor Research Limited —Woking
- Hybrid work
- Azure
- Java
- AWS
Senior Software Engineer, AI
Synack —London
- £150,000 - £180,000 a year
- Remote
- Driving
- APIs
- Python
Quick apply
Senior Account Executive, Commercial, DACH
HackerOne —London
- £65,000 - £72,500 a year
- Full-time
- Remote
- CRM software
- Sales
- Salesforce
- Annual leave
- Employee assistance programme
Full Software Stack Engineer
Roke —Gloucester
- Full-time
- Java
- APIs

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Penetration Tester - Vulnerability Researcher

Thales -
Bristol

Apply Now

Job details

Full-time
1 day ago

Benefits

Cycle to work scheme
Annual leave
Company pension
Discounted gym membership
Employee assistance programme
Private medical insurance
Employee discount
Paid volunteer time

Qualifications

Penetration testing
Management
Computer Science
Engineering
iOS
CEH
IT
Linux

Full job description

Location: Crawley, United Kingdom

Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services.

Join Thales at a pivotal time as we expand our Cyber Security capability across critical national infrastructure, defence, and aerospace programmes. As a Penetration Tester, you’ll play a key role in identifying vulnerabilities across complex systems and helping secure technologies that truly matter.

From secure software to biometrics and encryption, our CDI technologies and services enable organisations to confidently authenticate identities and protect data with care and precision. We support businesses and governments in keeping people safe and enabling trusted services across personal devices, connected objects, the cloud and everything in between.

The Opportunity:

You’ll work on high-impact projects, performing penetration testing across IT and OT environments while influencing secure design and risk mitigation strategies from early project stages through to delivery.

What You’ll Be Doing:

Conduct penetration testing across Windows, Linux, mobile (iOS/Android), web applications, and cloud environments
Identify, exploit, and clearly communicate security vulnerabilities and risks
Support accreditation and assurance activities on complex, high-security programmes
Advise on security controls and mitigation strategies aligned to customer needs
Contribute to governance frameworks, policies, and secure operating procedures
Produce high-quality technical reports and through-life security documentation
Act as a cybersecurity SME across projects, staying aligned with evolving regulations and standards
Collaborate with internal teams, customers, and external stakeholders at all levels
Support bid activities, including technical input and effort estimation

What We’re Looking For:

Hands-on penetration testing experience across diverse platforms (IT and/or OT environments)
Strong understanding of security testing methodologies and frameworks
Experience producing clear, actionable technical reports
Degree in Computer Science, Engineering, or equivalent experience
Industry certifications such as CREST, OSCP, CEH, GPEN, GXPN (or similar)

Desirable Experience:

Background in Defence, Aerospace, Government, Nuclear, Transport, or other regulated industries
Familiarity with compliance-driven environments and secure system accreditation

Why Thales?

Work on mission-critical systems that protect national security and infrastructure
Opportunities to move across domains, technologies, and international locations
Clear pathways into technical leadership or people management
Be part of a globally recognised engineering and technology organisation

Benefits:

Performance-related bonus
Half day every Friday, usually finishing around 13:00
28 days annual leave (plus bank holidays) with opportunity to buy up to 40 hours/year (pro rata)
24 hours volunteering paid for
Private healthcare
Pension scheme
Life cover
24/7 Employee Assistance Program and access to mental wellbeing app
Employee discount shopping schemes on major brands and retailers
Gym membership discounts

Security Clearance Requirement:

Due to the nature of the work that we do at Thales, many of our roles are subject to security restrictions. This role requires you to be a UK National and achieve Security Clearance (SC) without any caveats. It would be advantageous if currently held, however, if not currently held, it is a requirement that the successful applicant undergo, achieve, and maintain SC Clearance prior to commencing employment. If approved by the MOD, a dual national from a non-ITAR country may be considered.

To be eligible for full SC, you generally need to have resided in the UK for the last 5 years. In some circumstances, a minimum of 3 years’ residence in the UK over the last 5 years may be accepted, with additional overseas checks.

Please visit the UKSV website for further guidance:

https://www.gov.uk/government/publications/united-kingdom-security-vetting-clearance-levels/national-security-vetting-clearance-levels.

At Thales, we ensure equal opportunities, pay and working conditions for all. The benefits we offer include private medical insurance, buying or selling annual leave, cycle to work schemes, employee discounts, paid volunteering day, stocks and shares, annual bonus and much more depending on the role. Read more about our benefits here.

We are committed to creating a workplace where everyone feels valued for who they are and the unique strengths they bring. Discover more about our programmes, employee networks, wellbeing policies, and inclusive features here.

If this role isn’t quite right for you, we encourage you to join our talent community where your details will be shared with our recruitment teams for other potential opportunities. Join the Talent Community here.

Join Thales in the UK – Innovate with us and shape the future!

Apply Now

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