26 to 50 of 76 Tester Jobs in London

are looking to expand our team. Join our product development team to help us change the way people buy homes. The role: We are looking for a QA Software Tester who wants to be a part of a fast-growing startup that is transforming the way we buy homes. Your role will be to work closely with our scrum feature More ❯

Job Title: SailPoint Tester Location: London, UK (Hybrid) Job Type: FTC Job Description: Looking for a UAT QA immediately. This should be either certified on SailPoint application or with a strong working experience on SailPoint Application Onboarding (Identity Access Management Testing Application). The Job description is as follows: Experience of Identity Access Management - Mandatory Experience of SailPoint application onboarding More ❯

Rate: £275/day inside IR35 Requirements: 4+ experience as Data warehouse developer tester or ETL Tester Graduate degree preferred in Computer Science, Statistics, Informatics, Information Systems or another quantitative field. Expert in understanding and implementing QA/Testing Lifecycle Expertise in DB-related testing and ETL testing Testing experience with reporting and BI tools Writing basic SQLs to check More ❯

Rate: £275/day inside IR35 Requirements: 4+ experience as Data warehouse developer tester or ETL Tester Graduate degree preferred in Computer Science, Statistics, Informatics, Information Systems or another quantitative field. Expert in understanding and implementing QA/Testing Lifecycle Expertise in DB-related testing and ETL testing Testing experience with reporting and BI tools Writing basic SQLs to check More ❯

Job Title: SailPoint Tester Location: London, UK (Hybrid) Job Type: FTC Job Description: Looking for a UAT QA immediately. This should be either certified on SailPoint application or with a strong working experience on SailPoint Application Onboarding (Identity Access Management Testing Application). The Job description is as follows: Experience of Identity Access Management - Mandatory Experience of SailPoint application onboarding More ❯

Role: Penetration Tester (Infrastructure Focus) ️ Work Type & Location: Hybrid – London preferred (other UK cities possible) ️ Role Type: Permanent Salary: £70,000–£105,000 (London) depending on experience Other regional packages available for Cambridge, Manchester, Bristol, or Edinburgh Our client – a global innovation consultancy – is expanding its Digital & Data capability and is on the lookout for an experienced Penetration Tester (Infrastructure … This role is all about deep technical work inside live infrastructure environments – think Active Directory, internal networks, and sensitive systems where precision matters. If you’re the kind of tester who thrives in complex, undocumented environments and enjoys real-world impact over checkbox testing, this is the challenge for you. As a Penetration Tester (Infrastructure Focus), you will: Deliver internal … on flexibility Must be SC clearable (current SC clearance is a strong advantage) Other regional packages available for Cambridge, Manchester, Bristol, or Edinburgh Apply now to become a Penetration Tester (Infrastructure Focus) and help secure the systems that matter most. More ❯

Performance Tester Day Rate: Negotiable (IR35 Determination TBC) Availability: ASAP My client is the air transport industry's IT provider, delivering solutions for airlines, airports, aircraft, and governments. Their technology powers more seamless, safe, and sustainable air travel. They are looking to hire an experienced Performance Tester on a contract basis for an initial 6 months, with a potential to More ❯

Performance Tester Summary Location: Reading (UK) Candidates must be open to frequent visits to client site in Reading, UK Day Rate: Negotiable (IR35 Determination TBC) Duration: 6 Months Availability: ASAP About the Client My client is the air transport industry's IT provider, delivering solutions for airlines, airports, aircraft, and governments. Their technology powers more seamless, safe, and sustainable air … travel. They are looking to hire an experienced Performance Tester on a contract basis for an initial 6 months, with a potential to extend further. About the Role Working within the Borders business unit, The ideal candidate will have experience in performance testing of UI, APIs, and messaging systems, with strong hands-on expertise in LoadRunner Suite, Azure/Jenkins More ❯

Performance Tester Summary Location: Reading (UK) Candidates must be open to frequent visits to client site in Reading, UK Day Rate: Negotiable (IR35 Determination TBC) Duration: 6 Months Availability: ASAP About the Client My client is the air transport industry's IT provider, delivering solutions for airlines, airports, aircraft, and governments. Their technology powers more seamless, safe, and sustainable air … travel. They are looking to hire an experienced Performance Tester on a contract basis for an initial 6 months, with a potential to extend further. About the Role Working within the Borders business unit, The ideal candidate will have experience in performance testing of UI, APIs, and messaging systems, with strong hands-on expertise in LoadRunner Suite, Azure/Jenkins More ❯

Performance Tester Summary Location: Reading (UK) Candidates must be open to frequent visits to client site in Reading, UK Day Rate: Negotiable (IR35 Determination TBC) Duration: 6 Months Availability: ASAP About the Client My client is the air transport industry's IT provider, delivering solutions for airlines, airports, aircraft, and governments. Their technology powers more seamless, safe, and sustainable air … travel. They are looking to hire an experienced Performance Tester on a contract basis for an initial 6 months, with a potential to extend further. About the Role Working within the Borders business unit, The ideal candidate will have experience in performance testing of UI, APIs, and messaging systems, with strong hands-on expertise in LoadRunner Suite, Azure/Jenkins More ❯

Job Title: Penetration Tester Role: An exciting opportunity for a mid-level Penetration Tester to join a dynamic and collaborative security consultancy based in London. This role is ideal for a proactive individual with a hacker’s mindset and broad security testing experience across applications, networks, cloud platforms, and more. You'll be a key player in delivering high-quality More ❯

security projects. The NCSC-approved CHECK company specializes in penetration testing and security assessment services under the government-accredited CHECK scheme. They are currently seeking for a skilled Penetration Tester to join the growing team. This role requires an office presence 60% of the time, either in the head office or customer site. Are you ready to take the next More ❯

CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named one of the ‘World’s Best Employers’ by Forbes magazine. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme More ❯

Senior Penetration Tester – Must be eligible to obtain security clearance We are looking for a Senior Penetration Tester/Ethical Hacker to work freelance for a company who delivers high-quality security solutions for an array of different clients from varied industries. Due to an unprecedented increase in workload, we are looking for a reliable Penetration Tester to work on More ❯

Senior Penetration Tester – UK remote - £60,000 - £80,000 Opus are looking for an experienced Penetration Tester to join our client, a cyber consultancy specialising exclusively in penetration testing and red teaming, delivering high-impact, adversary-simulated engagements for clients ranging from agile tech scale-ups to critical infrastructure providers. As a Senior Penetration Tester, you’ll play a central More ❯

Penetration Tester – Infrastructure Salary: £70,000–£100,000 (depending on experience) Location: Hybrid – London (2 days per week on-site) Note: To be eligible for this role, you must be eligible for UK Security Clearance (SC). A high-performing digital security team is looking for an experienced Infrastructure Penetration Tester to join them in delivering critical assessments across complex … with internal infrastructure exploitation tools Certifications (preferred but not essential): CREST CTM, CTL, CSTM or Cyber Scheme Practitioner OSCP (current or lapsed) If you’re an experienced infrastructure penetration tester looking for meaningful work, we want to hear from you. More ❯

Penetration Tester – Infrastructure Salary: £70,000–£100,000 (depending on experience) Location: Hybrid – London (2 days per week on-site) Note: To be eligible for this role, you must be eligible for UK Security Clearance (SC). A high-performing digital security team is looking for an experienced Infrastructure Penetration Tester to join them in delivering critical assessments across complex … with internal infrastructure exploitation tools Certifications (preferred but not essential): CREST CTM, CTL, CSTM or Cyber Scheme Practitioner OSCP (current or lapsed) If you’re an experienced infrastructure penetration tester looking for meaningful work, we want to hear from you. More ❯

Penetration Tester – Infrastructure Salary: £70,000–£100,000 (depending on experience) Location: Hybrid – London (2 days per week on-site) Note: To be eligible for this role, you must be eligible for UK Security Clearance (SC). A high-performing digital security team is looking for an experienced Infrastructure Penetration Tester to join them in delivering critical assessments across complex … with internal infrastructure exploitation tools Certifications (preferred but not essential): CREST CTM, CTL, CSTM or Cyber Scheme Practitioner OSCP (current or lapsed) If you’re an experienced infrastructure penetration tester looking for meaningful work, we want to hear from you. More ❯

Role: Penetration Tester Location: London Salary: £45k - £60k Work Pattern: On-Site For 3 Months and Then 3 Days On-Site/2 Days WFH Skillset: OWASP, Cloud Platforms, SSL/TLS Summary An elite security consultancy has a brand new role for an experienced Penetration Tester to join their team. The role is being offered on a permanent basis … Platforms OSI Model Benefits Annual Training and Development Plans Regular Performance Reviews Industry Events and Conferences Hybrid Working After Probation Period Apply Now! If you are an experienced Penetration Tester and you are looking to progress with an organisation alongside ambitious and driven professionals, then look no further - this is the role for you! Referrals: If this role isn't … to recommend someone for this role. Interviews for this role will be held imminently. To be considered, please send your CV to me now to avoid disappointment. Role: Penetration Tester Location: London Salary: £45k - £60k Work Pattern: On-Site For 3 Months and Then 3 Days On-Site/2 Days WFH Skillset: OWASP, Cloud Platforms, SSL/TLS Oscar More ❯

applications (on diverse mobile platforms) would be of an advantage. You would join our established team of penetration testers with the possibility of progressing to team leader or principal tester positions. You would be able to work flexibly, undertaking work at home and at client sites across the UK. Required qualifications to be successful in this role - CHECK Team Leader … CTL) - CHECK Team Member (CTM) - CREST Certified Simulated Attack Specialist (CCSAS) - CREST Certified Tester (CCT). Sometimes known as CREST Certified Infrastructure Tester (CCT Inf) or CREST Certified Web Application Tester (CCT App) - Cyber Scheme Team Leader (CSTL) - TigerScheme Qualified Security Team Leader (QSTL) - Crest Registered Tester (CRT) - Cyber Scheme Team Member (CSTM) - TigerScheme Qualified Security Team Member (QSTM) - CREST More ❯

Penetration Tester - Managing Consultant Location: UK (Remote or Hybrid from Leeds, Bristol, or London) Salary: £65,000 – £82,000 + Certification Bonus + Excellent Benefits Eligibility: Must be eligible for UK Security Clearance (SC) Ready to lead, grow, and keep learning in cybersecurity? Join one of the UK’s most respected cyber consultancies where you won’t just manage penetration More ❯

We are currently recruiting for a highly awarded Managed Security Service Provider for the role of Lead Penetration Tester. This is a fantastic opportunity to join a business known for its cutting-edge connectivity, cloud, and communications solutions. Role Overview More ❯

Role Summary: Join our dynamic Offensive Security Team! As we expand, we are looking for a Pentester/Red Teamer who is enthusiastic about undertaking a range of security assessments, including penetration testing, red team exercises, vulnerability scanning, and physical More ❯

Penetration Tester - £550 - £600 Per Day – London (Hybrid) – 6 Months - Financial Services Overview: A market leading organization operating within the Financial Services sector is searching for an experienced Penetration Tester to join one of their growing teams in London on a hybrid basis. Role & Responsibilities: Support technical assessments and audits to ensure IT systems and processes adhere to standards and … relevant penetration and intrusion techniques and attack vectors Familiarity with the Open Web Application Security Project (OWASP) top 10 vulnerabilities Rate & Duration: £550 - £600 per day 6 Months Penetration Tester - £550 - £600 Per Day – London (Hybrid) – 6 Months - Financial Services More ❯

Penetration Tester - £550 - £600 Per Day – London (Hybrid) – 6 Months - Financial Services Overview: A market leading organization operating within the Financial Services sector is searching for an experienced Penetration Tester to join one of their growing teams in London on a hybrid basis. Role & Responsibilities: Support technical assessments and audits to ensure IT systems and processes adhere to standards and … relevant penetration and intrusion techniques and attack vectors Familiarity with the Open Web Application Security Project (OWASP) top 10 vulnerabilities Rate & Duration: £550 - £600 per day 6 Months Penetration Tester - £550 - £600 Per Day – London (Hybrid) – 6 Months - Financial Services More ❯