1 to 25 of 29 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 ❯

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 ❯

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 ❯

Senior Penetration Tester Position Description CGI Cyber Security Team in the UK is one of the largest Cyber consultancies in the UK with around 300 members. The UK Cyber team works across a variety of domains including: Government, Defence, Critical Infrastructure, Healthcare, Utilities, Banking and Financial Services and Many more. At CGI you will get the opportunity to … 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 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 ❯

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 ❯

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 – 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 ❯

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 the country. They solve through-life acquisition and support … 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 ❯

Pay up to £45,081 , plus 28.9% employer pension contributions, hybrid working with 60% home working, flexible hours, and great work life balance. As a Senior QA Tester, you'll have the chance to influence the tools we use, driving quality across teams and shaping how we test. It's a hands-on role where you'll build … We help people into work, and make payments worth over £195bn a year to support some of the most vulnerable people in our society. We are looking for a Senior QA Tester to join our community of tech experts in DWP Digital. We're driving a once-in-a-generation transformation of government services. We're using fresh … performance testing tools to build and run different types of tests, like load, stress, or endurance, to see how systems hold up under pressure. Delivery. Work. Projects. As a Senior QA Tester, you'll make sure our products are reliable, stable, and built to last. You'll take a thoughtful, risk-based approach to testing - deciding what needs More ❯

Pay up to £45,081 , plus 28.9% employer pension contributions, hybrid working with 60% home working, flexible hours, and great work life balance. As a Senior QA Tester, you'll have the chance to influence the tools we use, driving quality across teams and shaping how we test. It's a hands-on role where you'll build … We help people into work, and make payments worth over £195bn a year to support some of the most vulnerable people in our society. We are looking for a Senior QA Tester to join our community of tech experts in DWP Digital. We're driving a once-in-a-generation transformation of government services. We're using fresh … performance testing tools to build and run different types of tests, like load, stress, or endurance, to see how systems hold up under pressure. Delivery. Work. Projects. As a Senior QA Tester, you'll make sure our products are reliable, stable, and built to last. You'll take a thoughtful, risk-based approach to testing - deciding what needs More ❯

Pay up to £45,081 , plus 28.9% employer pension contributions, hybrid working with 60% home working, flexible hours, and great work life balance. As a Senior QA Tester, you'll have the chance to influence the tools we use, driving quality across teams and shaping how we test. It's a hands-on role where you'll build … We help people into work, and make payments worth over £195bn a year to support some of the most vulnerable people in our society. We are looking for a Senior QA Tester to join our community of tech experts in DWP Digital. We're driving a once-in-a-generation transformation of government services. We're using fresh … performance testing tools to build and run different types of tests, like load, stress, or endurance, to see how systems hold up under pressure. Delivery. Work. Projects. As a Senior QA Tester, you'll make sure our products are reliable, stable, and built to last. You'll take a thoughtful, risk-based approach to testing - deciding what needs More ❯

Ocho are exclusively working on a number of Penetration Tester roles! If you're passionate about ethical hacking and want to work on real-world cybersecurity challenges, this is the role for you. This organisation is on a serious growth trajectory, having secured major clients and high-profile projects, offering you the chance to work on cutting-edge security More ❯

specific and federal security regulations Perform both network and application-level testing using established testing protocols and methods Qualifications: Eight (8) experience of related work experience as a Penetration Tester performing both network and application-level testing using established test protocols and methods. A Bachelor's degree in Computer Science or a related field (e.g. General Engineering, Computer Engineering More ❯

A premier UK consultancy is seeking a skilled and passionate Penetration Tester to join its growing team of cybersecurity experts. This is a dynamic opportunity for individuals with strong technical skills and a proactive mindset, eager to make a tangible impact across a wide range of client environments. Working on mission critical projects across National Security, Critical National Infrastructure … and Defence the Senior Penetration Tester will liaise with highly-skilled teams acting as a trusted advisor. Key Responsibilities: Conduct hands-on internal penetration tests in infrastructure/Active Directory environments Produce clear and concise technical reports, summarising findings for both technical and business stakeholders Work directly with clients as a trusted advisor – this is a consulting-facing More ❯

A premier UK consultancy is seeking a skilled and passionate Penetration Tester to join its growing team of cybersecurity experts. This is a dynamic opportunity for individuals with strong technical skills and a proactive mindset, eager to make a tangible impact across a wide range of client environments. Working on mission critical projects across National Security, Critical National Infrastructure … and Defence the Senior Penetration Tester will liaise with highly-skilled teams acting as a trusted advisor. Key Responsibilities: Conduct hands-on internal penetration tests in infrastructure/Active Directory environments Produce clear and concise technical reports, summarising findings for both technical and business stakeholders Work directly with clients as a trusted advisor – this is a consulting-facing More ❯

Senior Software Tester (Security Clearance) Position Description The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We bring innovation to our clients using proven and emerging technologies, agile delivery processes and … or be eligible to go through this clearance. This position ill be working out of our site in Chippenham. Your future duties and responsibilities Are you a meticulous Software Tester with a passion for delivering robust, high-performing systems in complex environments? We are seeking a skilled and motivated Automation Tester to join our dynamic team. This role More ❯

track record of ensuring the highest standard of software quality. Experienced in writing and executing test plans/test cases. Ability to drive forward the test activity, act a senior, and ensure deadlines are met for the project Salary: up to £50,000 dependant on experience Please note that we cannot offer visa sponsorship for this role and the More ❯