1 to 25 of 27 Permanent Security Tester Jobs

Greetings from Response Informatics!! We are currently hiring a AI Security Tester for an exciting client engagement. Role: AI Security Tester Location: Reading , UK ( Hybrid Role, when needed will have to travel to Client offices or customer location) Positions: Permanent Clearance: SC Cleared/Eligible Role … recommend mitigation strategies Key Requirements 5+ years in offensive cybersecurity (AppSec, Pen Testing, Red Teaming) Minimum 2 years focused on AI/ML security Strong programming skills in Python/Java Hands-on experience with ML frameworks (e.g., PyTorch, TensorFlow) Familiarity with AI tooling (e.g., LangChain, LlamaIndex, red-teaming ...

Greetings from Response Informatics!! We are currently hiring a AI Security Tester for an exciting client engagement. Role: AI Security Tester Location: Reading , UK ( Hybrid Role, when needed will have to travel to Client offices or customer location) Positions: Permanent Clearance: SC Cleared/Eligible Role … recommend mitigation strategies Key Requirements 5+ years in offensive cybersecurity (AppSec, Pen Testing, Red Teaming) Minimum 2 years focused on AI/ML security Strong programming skills in Python/Java Hands-on experience with ML frameworks (e.g., PyTorch, TensorFlow) Familiarity with AI tooling (e.g., LangChain, LlamaIndex, red-teaming ...

Greetings from Response Informatics We are currently hiring a AI Security Tester for an exciting client engagement. Role: AI Security Tester Location: Reading , UK ( Hybrid Role, when needed will have to travel to Client offices or customer location) Positions: Permanent Clearance: SC Cleared/Eligible Role ...

Description Greetings from Response Informatics!! \ N We are currently hiring a AI Security Tester for an exciting client engagement. \ N Role: AI Security Tester \ N Location: Reading, UK ( Hybrid Role, when needed will have to travel to Client offices or customer location) \ N Positions: Permanent ...

Cyber Security Consultant (Penetration Tester) Department: Cyber Employment Type: Permanent - Full Time Location: City, London Compensation: £45,000 - £55,000/year Description Moore Kingston Smith is seeking an experienced Cyber Security Consultant specialising in penetration testing to join our client-facing advisory team. You will join … NCSC-recognised cyber security team within our Risk Advisory practice, supporting a diverse portfolio of clients across multiple sectors. This is a hands‐on role focused on delivering penetration tests across web applications, APIs, and internal and external network infrastructure. You will also support Cyber Essentials Plus assessments ...

Control Tester - Cyber Security Location: UK - details available on application Sector: Cyber Security/IT Risk & Assurance About the Role We are seeking a Control Tester to support the delivery of cybersecurity control testing across a complex technology environment. You will assess the design and operational … effectiveness of security controls, gather supporting evidence, document findings and work with control owners to ensure assessments are completed accurately and consistently. This is a hands-on opportunity for someone with experience in IT audit, cybersecurity or control testing who wants to develop their expertise in risk, compliance ...

Control Tester – Cyber Security Location: UK – details available on application Sector: Cyber Security/IT Risk & Assurance About the Role We are seeking a Control Tester to support the delivery of cybersecurity control testing across a complex technology environment. You will assess the design and operational … effectiveness of security controls, gather supporting evidence, document findings and work with control owners to ensure assessments are completed accurately and consistently. This is a hands-on opportunity for someone with experience in IT audit, cybersecurity or control testing who wants to develop their expertise in risk, compliance ...

Technology, we're asking that you attend the office a minimum of 1 day per week. About the Role As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed and operated … securely. This is a collaborative role - you’ll directly interact with multiple areas of the business to understand requirements, conduct research, perform security testing, and report issues aligned to our risk framework. Being an internal tester, you’ll gain a strong understanding of how technology works at Starling ...

Technology, we're asking that you attend the office a minimum of 1 day per week. About the Role As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed and operated … securely. This is a collaborative role - you’ll directly interact with multiple areas of the business to understand requirements, conduct research, perform security testing, and report issues aligned to our risk framework. Being an internal tester, you’ll gain a strong understanding of how technology works at Starling ...

Technology, we're asking that you attend the office a minimum of 1 day per week. About the Role As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed and operated … securely. This is a collaborative role - you’ll directly interact with multiple areas of the business to understand requirements, conduct research, perform security testing, and report issues aligned to our risk framework. Being an internal tester, you’ll gain a strong understanding of how technology works at Starling ...

Technology, we're asking that you attend the office a minimum of 1 day per week. About the Role As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed and operated … securely. This is a collaborative role - you’ll directly interact with multiple areas of the business to understand requirements, conduct research, perform security testing, and report issues aligned to our risk framework. Being an internal tester, you’ll gain a strong understanding of how technology works at Starling ...

Title: Cyber Security Penetration Tester Locations: UK wide (hybrid work- 1x a month in office) Salary: Competitive salary and package (Depending on level of experience) Please Note:Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address … including no periods of 30 consecutive days or more spent outside of the UK) at the point of application. Role overview As a Penetration Tester, you will deliver hands-on security testing of client web applications, APIs and infrastructure. Working within a collaborative testing team, and supported ...

cybersecurity services provider is seeking a Penetration Tester to conduct security assessments across various clients. The role offers flexibility to work remotely or from the Sheffield office, and the ideal candidate will have 2-4 years of experience, a CREST certification, and strong communication skills. You'll help ...

Dionach by Nomios in the UK is seeking an experienced penetration tester to conduct tests across web apps, APIs, Cloud, and networks, delivering detailed findings and remediation guidance. The role requires at least two years in pentesting, certifications such as CREST/OSCP, and the ability to communicate technical ...

office, initially this will be in Bracknell and then moving to Maidenhead towards the end of this year. As Security Consultant (SC) you will use your existing strong technical and analytical skills to develop a strategic and pragmatic view of enterprise security as well as conduct detailed security … including the creation of technical reports. Working on multiple projects provides exposure to different industries. You'll be collaborating with members of the Corsaire security team and directly with the clients to provide advice on the mitigation of discovered flaws or implementing state-of-the-art security mechanisms. ...

Penetration Tester – Bristol | Full-Time | Hybrid with Client Travel My client is a UK-based technology and cybersecurity consultancy delivering cutting‐edge solutions across sectors including telecoms, finance, defence, rail, and aerospace. With expertise in cybersecurity, software development, and R&D, they work on some of the most critical … challenging projects in the UK and beyond. The Role They’re looking for an experienced Penetration Tester to join their expert team in Bristol. You’ll be responsible for conducting advanced penetration tests, red team exercises, and vulnerability assessments, helping clients strengthen their defences and reduce risk. What ...

London Stock Exchange Group (LSEG) seeks a Senior Penetration Tester to join our internal offensive security team. This hands-on, highly technical role plans and executes penetration tests across systems and applications, uncovering vulnerabilities and raising security standards. You will own engagements end-to-end, write technical ...

Accountants & Business Advisors Ltd is seeking a Lead Penetration Tester with 5+ years of experience to lead client engagements and advance our Cyber Security practice. You will oversee penetration testing across infrastructure, web apps and cloud, deliver assessments and high-quality reports, and mentor junior consultants. … work with clients on security reviews aligned to recognised frameworks and help shape service offerings while staying ahead of emerging threats and best practices. #J-18808-Ljbffr ...

Nationwide Group is seeking a skilled Penetration Testing Engineer to join our offensive security team across the UK estate. You will conduct security assessments, scope engagements, and deliver clear findings to stakeholders. You will work independently and proactively, communicating risks to both technical and non-technical audiences, while ...

Moore Kingston Smith LLP is seeking an experienced Penetration Tester to join our NCSC-recognised cyber security team within Risk Advisory, supporting clients across multiple sectors. The role focuses on hands-on testing of web applications, APIs, and network infrastructure, with involvement in Cyber Essentials Plus and broader … security assessments. You will identify security weaknesses, explain business risks, and provide remediation guidance while contributing to service development and client #J-18808-Ljbffr ...

over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across … problem solve as a team, alongside asynchronous communication on Teams Work by yourself, or play your part in larger projects Deliver high quality security assessments within agreed deadlines Produce written and verbal reports for clients to an excellent standard. Develop and share knowledge with the rest of the penetration ...

ThreatSpike Ltd. is seeking a Senior Penetration Tester to lead web, internal and external assessments, using OWASP and MITRE ATT&CK frameworks. The role emphasizes mentorship, client communication, and hands-on testing across platforms. Remote-first role across the United Kingdom, United States, Singapore and United Arab Emirates, with ...

Hamilton Barnes is seeking a Senior Penetration Tester to perform hands-on testing across infrastructure, networks, web applications and APIs for varied client environments. The role emphasizes contributing to an offensive security function rather than sole test delivery. You will deliver tests, identify vulnerabilities, and produce detailed client ...

Ruptura InfoSecurity is seeking an experienced Senior Penetration Tester to lead complex testing engagements across infrastructure, web apps, cloud and internal environments. You will identify attack paths, craft remediation guidance and present findings to technical and executive stakeholders. Join a high-performing offensive security practice, mentor junior consultants ...

Mentmore is seeking a Control Tester to support cybersecurity control testing across a complex tech environment in the UK. You will assess design and operational effectiveness of security controls, gather evidence, document findings, and work with control owners to ensure assessments are thorough and accurate. This hands … role suits someone with IT audit, cybersecurity or control testing experience who wants to deepen expertise in risk, compliance and information security assurance. #J-18808-Ljbffr ...