1 to 25 of 52 Senior Tester Jobs

Summary: CCL Solutions Group is seeking an exceptional Senior Penetration Tester with CHECK Team Leader Infrastructure (CTL-INF) qualifications to join our elite team of security professionals. Location: Home based Main Job Summary This is more than just a job, we're looking for individuals with a hacker's mindset, deep technical expertise, and a relentless drive to … a leading provider of cybersecurity services, we are a team committed to making a real difference in protecting communities, businesses, and the critical infrastructure of the UK. As a Senior Penetration Tester within CCL Solutions Group, your key responsibilities will be: Lead and deliver end-to-end penetration testing engagements across infrastructure and cloud environments. Manage and mentor … reviews, and adversary emulation where required. Contribute to internal R&D, tooling improvements, and the development of our offensive security services. Required Skill Set & Experience: This role requires a senior and mature person who can demonstrate leadership, honesty and integrity and who expects high standards. Please understand this is not an entry level role it is essential that you More ❯

Senior Software Tester Norfolk (Hybrid, 2 days a week on site) £(phone number removed) REED Technology are working with a fast-growing technology that's powering the next generation of sweepstakes and social casino platforms. As they continue to scale, they're looking for a hands-on Senior Software Tester to lead quality assurance across their … platforms - with a focus on manual testing, test strategy, automation implementation, and performance testing. This role suits a senior-level QA professional who's comfortable being the driving force behind testing in a fast-paced, regulated, high-traffic environment. You'll shape the test approach, take ownership of test execution and tooling, and help define and embed automation frameworks … Confident working with API testing tools (Postman, RestAssured, etc.) Exposure to CI/CD pipelines and DevOps environments Familiarity with iGaming regulatory frameworks and compliance testing Proactive, self-sufficient tester who can own QA end-to-end - not just follow test scripts Excellent communication and collaboration skills in cross-functional teams Desirable (But Not Essential): Experience testing real-time More ❯

Digital Delivery Senior Automation Tester - Newport Salary not available. View on company website. Location: United Kingdom Security Vetting, East Cliff, Bournemouth Job Ref: 99dd0752dbf340cd87a196084a9cd5b2 You will need the appetite to learn new technologies and methodologies for delivering high quality IT services. In this role, you will work within a multi-disciplined squad using several technologies to build enterprise … proactive and take accountability for the squad assigned deliveries. The role will also require the investigation, diagnosis, and fix of any system issues, mainly related to data processing. A Senior Test Engineer is expected to contribute to the technical strategy for the department. As a multi-skilled individual with strong skills in data testing, you will have the opportunities More ❯

CHECK Senior Infrastructure Penetration Tester PGI is a global consultancy that helps organisations build digital resilience. We deploy our people to implement solutions on behalf of clients or to support them in developing their capabilities. Our Penetration Testers work with organisations of all sizes and types to detect and remediate vulnerabilities. They help identify areas lacking sufficient protection. More ❯

EU work permit required: Yes col-narrow-right Job Reference: f8df16944905 Job Views: 9 Posted: 22.06.2025 Expiry Date: 06.08.2025 col-wide Job Description: Job description Assistant Manager Job title: Senior Penetration Tester - Assistant Manager Location: UK Line of Business: Advisory - Risk Consulting Service Area: Cyber Security Roles and Responsibilities The Role At KPMG, we are looking for an … are members of current testing schemes, conducting challenging work not available elsewhere. Our team is located in Leeds, Bristol, and London, offering flexibility and remote working options. Responsibilities This senior role requires your business acumen and technical hacking skills. You should have ideas for business growth and be skilled in security testing delivery. Responsibilities include: Delivery of testing and More ❯

Job Description We have an incredible opportunity to join us here at Phoenix Group as a Senior Penetration Tester to join our Threat Led Pen-Testing Team within our Information Security Department. Job Type: Permanent Location: This role could be based in either our Telford or Edinburgh Office, with hybrid working, Flexible working: All of our roles are … organisation that is tackling key issues such as transitioning our portfolio to net zero by 2050, and we’re not done yet. The role We are looking for a Senior Penetration Tester within our Threat led Pen-Testing team. In this role you will be conducting regular penetration tests ranging from web applications to infrastructure testing and purple … teaming. You Will Also As a senior, lead penetration tests from scoping, through to delivery, reporting and debriefing. Contribute to Quality Assurance of internally issued pen test reports. Collaborate with the Defensive (Blue) team when conducting Purple Team exercises Maintain knowledge of Cyber Security Threat Landscape, Attacks & Adversary TTPs What are we looking for? Essential At least 2 years More ❯

This job is brought to you by Jobs/Redefined, the UK's leading over-50s age inclusive jobs board. Job description Assistant Manager Job title: Senior Penetration Tester - Assistant Manager Location: UK Line of Business: Advisory - Risk Consulting Service Area: Cyber Security Roles and Responsibilities The Role At KPMG we are looking for an Assistant Manager who … around three locations in Leeds, Bristol and London, therefore we are able to offer flexibility in base location, as well as embracing remote working. Responsibilities As this is a senior role, we want your business brain as well as your technical hacking skills. You will have ideas of how to drive the business forward, and be skilled in the More ❯

Senior Penetration Tester -240,000+ Total Package Entasis Partners are proud to be exclusively supporting a global organisation at the forefront of innovation in financial systems and high-performance computing. Our partner operates in a deeply technical, high-trust environment where the scale of data, the pace of experimentation, and the calibre of internal talent make for an … exceptionally challenging and rewarding opportunity. With a newly developed central London site focused on next-generation research, this firm is seeking a Senior Penetration Tester to strengthen its already world-class internal security capability. You ll be trusted to scope, execute, and deliver sophisticated penetration tests and control assessments across a range of technologies including Kubernetes, Jenkins, and More ❯

Senior Penetration Tester -240,000+ Total Package Entasis Partners are proud to be exclusively supporting a global organisation at the forefront of innovation in financial systems and high-performance computing. This is not your average security role. Our partner operates in a deeply technical, high-trust environment where the scale of data, the pace of experimentation, and the … calibre of internal talent make for an exceptionally challenging and rewarding opportunity. With a newly developed central London site focused on next-generation research, this firm is seeking a Senior Penetration Tester to strengthen its already world-class internal security capability. The Opportunity This is a hands-on, highly autonomous role embedded within a specialist cyber function. You More ❯

Senior Penetration Tester -240,000+ Total Package Entasis Partners are proud to be exclusively supporting a global organisation at the forefront of innovation in financial systems and high-performance computing. This is not your average security role. Our partner operates in a deeply technical, high-trust environment where the scale of data, the pace of experimentation, and the … calibre of internal talent make for an exceptionally challenging and rewarding opportunity. With a newly developed central London site focused on next-generation research, this firm is seeking a Senior Penetration Tester to strengthen its already world-class internal security capability. The Opportunity This is a hands-on, highly autonomous role embedded within a specialist cyber function. You More ❯

Senior Penetration Tester -240,000+ Total Package Entasis Partners are proud to be exclusively supporting a global organisation at the forefront of innovation in financial systems and high-performance computing. This is not your average security role. Our partner operates in a deeply technical, high-trust environment where the scale of data, the pace of experimentation, and the … calibre of internal talent make for an exceptionally challenging and rewarding opportunity. With a newly developed central London site focused on next-generation research, this firm is seeking a Senior Penetration Tester to strengthen its already world-class internal security capability. The Opportunity This is a hands-on, highly autonomous role embedded within a specialist cyber function. You More ❯

Amentum is seeking a skilled Senior Software Tester to join our team. The ideal candidate will be well-versed in ensuring the quality and reliability of software products through comprehensive testing. You will work closely with the development team to identify and resolve issues, ensure that our software meets the highest standards of quality, and contribute to our 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 We would … be interested to talk further if you hold any of the following qualifications: - 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 Practitioner Security Analyst (CPSA) - Offensive Security Certified Professional (OSCP) Together, as owners, let's turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you'll reach your full potential because You are More ❯

Do you want to tackle the biggest questions in finance with near infinite compute power at your fingertips? G-Research is a leading quantitative research and technology firm, with offices in London and Dallas. We are proud to employ some More ❯

At VML, we are a beacon of innovation and growth in an ever-evolving world. Our heritage is built upon a century of combined expertise, where creativity meets technology, and diverse perspectives ignite inspiration. With the merger of VMLY&R More ❯

Sr. Penetration Tester Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: None The Opportunity: Are you ready to shape the future of intelligence systems? CACI is seeking a talented Penetration Tester to join our team in Herndon, VA. More ❯

actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Opus Recruitment Solutions Senior Consultant - Cyber Security - Opus Recruitment Solutions 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 role in executing and shaping these engagements—across infrastructure, web, cloud, and bespoke environments—while also leading goal-based assessments and full-scale red team operations. This is a … and NIST Experience with C2 frameworks (e.g., Cobalt Strike, PoshC2, Sliver) Certifications such as OSCP, CRTO, OSEP, or CREST CRT preferred (but not required) Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Industries Technology, Information and Media Referrals increase your chances of interviewing at Opus Recruitment Solutions by 2x Get notified about More ❯

ManTech seeks a motivated, career and customer-oriented Senior Quality Assurance Tester to join our team in the Reston or Chantilly, VA location. This is an onsite position. The Senior Quality Assurance Tester will work with the engineering and quality assurance/test teams to perform exploratory, performance, and security testing to ensure all systems and … Physical Requirements: Must be able to be in a stationary position more than 50% of the time Must be able to communicate, converse, and exchange information with peers and senior personnel Constantly operates a computer and other office productivity machinery, such as a computer The person in this position frequently communicates with co-workers, management, and customers, which may More ❯

Senior Penetration Tester – (UK only - Must be eligible for Security Clearance) Location: UK (Leeds, Bristol, London or Remote) Salary - £45k - £60k Step up your game in cybersecurity. We’re looking for an experienced Senior Penetration Tester who thrives on pushing boundaries, thinks like an attacker, and delivers like a pro. You’ll be joining a tight More ❯

Senior Penetration Tester – (UK only - Must be eligible for Security Clearance) Location: UK (Leeds, Bristol, London or Remote) Salary - £45k - £60k Step up your game in cybersecurity. We’re looking for an experienced Senior Penetration Tester who thrives on pushing boundaries, thinks like an attacker, and delivers like a pro. You’ll be joining a tight More ❯

Senior Tester | MUST BE DV CLEARED Overview: Are you a Senior Tester looking for a hands-on, impactful role where you can lead by example and shape the future of testing in a fast-paced, delivery-focused environment? Our client is seeking experienced and self-motivated Test Leads to join a well-established Test Practice , delivering More ❯

Senior Penetration Tester/Ethical Hacker (C++, C#, PowerShell) 1 day ago Be among the first 25 applicants Key Responsibilities : Conduct advanced penetration testing on web applications, networks, and systems to identify vulnerabilities. Simulate sophisticated cyberattacks using tools and custom scripts to exploit weaknesses. Develop and deploy custom tools, scripts, and exploits to test system resilience. Collaborate with … experience with malware analysis and forensic tools is a plus. Certifications (Preferred) : OSCP (Offensive Security Certified Professional) OSCE (Offensive Security Certified Expert) CEH (Certified Ethical Hacker) GPEN (GIAC Penetration Tester) CISSP (Certified Information Systems Security Professional) Soft Skills : Strong problem-solving and analytical skills. Excellent communication skills, with the ability to explain technical findings to non-technical stakeholders. A … Android). Knowledge of blockchain and smart contract security. Familiarity with AI/ML security challenges. Contributions to open-source security projects or bug bounty programs. Seniority level Mid-Senior level Employment type Contract Industries: Software Development #J-18808-Ljbffr 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 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 More ❯

Social network you want to login/join with: Senior Tester| Full Time - Hybrid working with regular attendance at the Brighton Head Office | 37.5 hours per week, Monday to Friday, worked flexibly in line with company, customer and project needs | £45,000 - £55,000 per annum Our client is a UK technology company with team members based across … sectors, supporting their teams to work strategically, collaboratively and effectively to maintain and streamline the delivery of military and industrial capability. They are currently looking for a highly experienced Senior Tester to join their team. The Senior Tester will be responsible for ensuring that the software developed by our client is of high quality and fit … and validating critical path scenarios to support product readiness for general release. This is a hands-on role requiring collaboration with Analysts, Developers, Product Owners, and Delivery teams. The Senior Tester will help coordinate the overall test strategy, identify opportunities for automation, and provide artefacts suitable for customer scrutiny. The successful candidate will be expected to operate with More ❯