1 to 25 of 42 Permanent Penetration Testing Jobs in Slough

Penetration Tester – CREST Certified Location: Remote, UK Job Type: Full-time/Permanent Reporting to: Software Engineering Manager (QA Automation) Join TLScontact – Secure the Future of Global Visa & Immigration Services! At TLScontact , we specialize in delivering seamless and secure visa and immigration solutions for governments and travelers worldwide. Security … is at the heart of our digital transformation, and we are looking for a Security Testing Engineer (Pentester) to help safeguard our platforms and applications. If you are passionate about penetration testing, vulnerability analysis, and secure development, this role is perfect for you! You will work closely … software engineering teams to identify security risks, implement best practices, and enhance the security posture of our digital services. Your Mission Perform offensive security testing (penetration testing) on web applications and services. Conduct manual and automated code analysis to detect vulnerabilities and non-trivial security issues. Support More ❯

Job Title: Penetration Tester Role: Are you a cybersecurity enthusiast with expertise in penetration testing across infrastructure, web applications, mobile, and cloud environments? Join our team near Doncaster or Manchester, where you'll play a key role in securing our clients' digital landscapes. Work on cutting-edge … projects in infrastructure penetration testing. Collaborate with a talented and dynamic cybersecurity team. Enjoy opportunities for growth and development in the cybersecurity field. Responsibilities: Conduct penetration testing on infrastructure, web applications, mobile platforms, and cloud environments to uncover vulnerabilities. Analyse testing outcomes and provide actionable recommendations … to improve security measures. Collaborate with cross-functional teams to develop and implement security strategies. Stay updated on emerging cybersecurity threats and adapt testing methodologies accordingly. Skills/Must Have: Proven experience in penetration testing for infrastructure, web applications, mobile, and cloud environments. Strong understanding of networking More ❯

salary is totally dependant on your experience, from 3 years to 30 years. The requirements are as follows: Manual Testers/QA Analysts & Automation Testing Execute test cases manually. Focus on UI/UX, functionality, user stories, and regression. Tools: Excel, TestRail, Zephyr, Jira, Quality Center. Create and execute … automated test scripts. Improve test coverage, speed up regression cycle. Tools: UFT (Unified Functional Testing) – enterprise tool for functional/regression testing (VBScript). Selenium Cypress Appium Playwright , TestComplete , Ranorex , Robot Framework . Multiple Deliverables SDET Testing (Software Development Engineer in Test) Ideally Developer-tester hybrid. Write … testing frameworks and also contribute to production code. Strong coding background (Java, Python, C#, etc.). Build integration and end-to-end automation pipelines. Performance/Load Testing Simulates real-world load and stress on systems. Ensures system performance, scalability, and reliability. Tools: JMeter , LoadRunner , Gatling , Neoload . More ❯

growing, agile cyber consultancy working with UK and international clients. You’ll join a high-performing Threat Operations team, delivering advanced offensive security services—penetration testing, phishing simulations, code reviews—and play a key role in shaping how they support their clients' evolving needs. 🔍 What You’ll Do … Lead the creation and delivery of our clients' offensive security services Perform penetration testing, code reviews, phishing simulations, and assessments Travel internationally to support partner nations with cyber capability development Design and deliver bespoke training and mentoring packages Collaborate across the Threat Operations team to share insights and … strengthen their cyber intelligence 🧠 What You Bring Expertise in advanced penetration testing (web & desktop apps), phishing, and code review Strong problem-solving, communication, and stakeholder management skills Ability to teach and adapt content for global, multicultural audiences Self-starter mindset—comfortable working solo or in a team, locally More ❯

Pentest People is a UK-based security consultancy specialising in providing Penetration Testing as a Service to all its clients. We are seeking a Pre-sales Consultant to support our Sales team by providing technical expertise to customers and prospects throughout the sales process. Reporting directly to our … The primary responsibility of the role is to determine the scope of work for various Cyber Security products and services, with a focus on Penetration Testing. You will work with internal teams to create comprehensive proposals, ensuring a smooth sales experience and presenting the company in the best possible … The ideal candidate will have a background in Technical Sales Support, along with a strong interest in Cyber Security (knowledge of Cyber Security or Penetration Testing is a plus). You should excel at building professional relationships based on trust and credibility, and be comfortable in a client More ❯

Penetration Tester Work Across Internal Security, Compliance & Client Engagements A fast-growing security-focused business is looking for a Penetration Tester to join their expanding team. This is a hands-on, cross-functional role where you'll support internal security maturity, contribute to client-facing consultancy projects, and … SOC to simulate attack scenarios and improve detection Run internal vulnerability assessments and pen tests to support compliance and readiness for audits Deliver external penetration testing services — from scoping and testing to risk analysis and reporting What We're Looking For: Practical experience in penetration testing More ❯

Role: Offensive Security Specialist Type: Permanent Location: Remote (UK) Clearance: Eligible for SC Interested in getting away from the grind of endless similar penetration tests? Keen to stretch yourself into a more managerial role over time, building up a capability around you? We are working with a leading security … who are in the process of standing up their Offensive Security capability. The work will be focused on providing services such as Web App testing, Infrastructure testing and Code Review services to clients whilst also looking at how to develop that side of the company further. This role … Customer engagement, through the scoping process, tool selection and overall delivery •Run and take ownership of services such as Vulnerability Assessments, Code Review and Penetration Testing •Potential to work overseas to provide training services or working with clients to develop their own security posture •Engage in a cross More ❯

business and technical focused. You will have ideas of how to drive the business forward, and be skilled in the commercial aspects of security testing, above all you will know what clients are looking for when they buy security testing and how to deliver it. Management and delivery … of penetration testing services to clients to include the following: Scoping Financial and risk management Delivery of testing and the oversight of testers Review of deliverables (QA) Coaching and developing team members through sharing of experience and knowledge. Performance management of junior staff. Continuous development of self … the broader offerings to enable identification of business opportunities Required Skills and Experience: Passion for Hacking! Clear and demonstrable understanding of red-teaming/penetration testing, including NCSC and CREST accredited schemes such as xBEST, STAR/STAR-FS, CHECK. Proven experience of successfully managing and delivering testing More ❯

Principal Penetration Tester - £95k - Leeds (Remote first) - Amazing growth opportunities G.Digital have partnered exclusively with one of our BRAND NEW clients looking to add to their Penetration Testing Practice. You'll be the 'right-hand' to a highly regarded Security Tech Director that has broad experience scaling … Security practices, and you'll be 'taking the reigns' from their Principal responsibilities taking full ownership of the Pen testing practice. What can you expect? FULL autonomy and the opportunity to take ownership of your on Service Delivery Stream Remote first work - Minimum Bi-yearly meet-ups Flexi hours … multiple Industries Have previously lead a team (2 direct line reports/11 overall) Relevant Cyber credentials - CCT is a must Expertise in Infrastructure Penetration Testing Any competencies in a Scripting/Programming language (Python ideal) Comfortable in a Pre-sales capacity Adhoc There's a 2 interview More ❯

Pentest People is a UK-based security consultancy specialising in providing Penetration Testing as a Service to all its clients. Our innovative approach to security testing merges the benefits of consultant-led penetration testing with ongoing vulnerability assurance through our advanced SecurePortal. This provides clients More ❯

Security Engineer – IAM | DORA | Pen Testing | Payments – Banking London/Glasgow | £750/day (Inside IR35) | Financial Services We're seeking a seasoned Security Engineer with a proven track record in banking environments to join a high-impact team driving resilience and security across mission-critical systems. You’ll … bring deep expertise across Identity & Access Management (IAM) , penetration testing , and 3rd party risk , with strong familiarity with DORA compliance and payments/settlement systems . What You’ll Do: Lead and execute advanced penetration testing and vulnerability assessments Own IAM strategy and operations , ensuring airtight … in fast-paced, regulated environments with a laser focus on resilience What You’ll Bring: Hands-on banking experience – essential Expertise in IAM, pen testing, third-party risk , and regulatory frameworks (DORA) In-depth knowledge of financial systems, especially payments & settlement platforms Strong communicator, highly analytical, and security-obsessed More ❯

engage, and close new business opportunities within the SOC Service offering and assist with GRC (PCI DSS, ISO 27001, NIST, Cyber Maturity Assessments) and penetration testing services. With strong SDR and marketing support, you'll have the tools and backing to succeed in a high-growth cybersecurity environment. … Doing: Hunt, Develop, and Manage Accounts: Your primary focus will be selling cyber professional services covering a wide spectrum from SOC, GRC, MDR, and Penetration testing Managing a sales pipeline with deal sizes ranging from £25k - £100k Meet or exceed quarterly sales quota Working closely with SDRs to More ❯

email campaigns, LinkedIn outreach, and industry events. Client Qualification – Assess the security needs and challenges of potential clients to determine how the company’s penetration testing, red teaming, and cyber maturity assessments can add value. Sales Outreach – Initiate contact with prospects, educate them on cyber security services, and … position services effectively. Qualifications & Experience 2+ years of experience in business development, sales, or lead generation within the cyber security sector. Strong understanding of penetration testing, red teaming, incident response, and cyber maturity assessments. Excellent communication skills, with the ability to simplify complex technical concepts and convey their More ❯

Conducting comprehensive security assessments: This involves evaluating an organization's IT infrastructure, networks, systems, and applications to identify potential weaknesses and vulnerabilities. Performing vulnerability testing and penetration testing: Using various tools and techniques (like Nessus, Burp Suite, Metasploit), you'll simulate attacks to uncover exploitable flaws. Developing More ❯

security breaches, intrusions, and abnormal system behavior Investigate security incidents, perform root cause analysis, and provide incident response support Conduct regular vulnerability assessments and penetration testing; assist in remediation efforts Maintain and manage SIEM (Security Information and Event Management) tools and log analysis Develop and enforce security policies More ❯

If you're looking to join an established organisation expanding their penetration testing capabilities. As part of this strategic investment I'm now on the lookout for a number of experienced penetration testers to join the team. This is a genuine opportunity for a penetration tester … to deliver impactful testing work - without getting side lined with adjacent tasks or red tape! If you're looking for a role to focus on delivering high-quality assessments and reports, honing your skills across a broad range of testing disciplines with full investment for training & certifications (including … those you personally want to go for) this could be for you. What you'll be doing As a penetration tester you will deliver high-quality tests across a range of environments: Internal/External Infrastructure WebApp, API's Hardware & Embedded Software Cloud (AWS, GCP, Azure) Produce clear, concise More ❯

Job Title: Penetration Tester Location: Remote (UK-based) Travel: Occasional travel to client sites or company events Our client is a respected and rapidly growing leader in the cybersecurity and risk consulting space. Working with a wide range of organizations — from FTSE 100 companies to critical infrastructure and government … entities — they provide high-quality security testing and advisory services across various industries. This is an excellent opportunity to join a team that values your expertise, supports your growth, and offers the flexibility of remote working with the stimulation of varied engagements. Key Responsibilities: Conduct thorough penetration tests … environments, and web applications. Deliver high-quality, client-ready reports detailing findings, impact, and practical remediation advice. Collaborate directly with client stakeholders during scoping, testing, and results presentations. Keep current with emerging threats, vulnerabilities, and tools in the offensive security landscape. Contribute to internal development of testing methodologies More ❯

GIAC Certified Incident Handler (GCIH), GIAC Certified Forensic Analyst (GCFA), GIAC Reverse Engineering Malware (GREM), MCFE, EnCE or equivalent certifications ● Hands-on experience with Penetration Testing and/or Red Teaming ● Hands-on experience Security auditing and consulting ● Experience with MacOS and Linux distributions. ● Background working with Law More ❯

to proactively mitigate risks Perform proactive threat hunting, research, and analysis, delivering actionable intelligence to IT and security teams Perform security assessments, audits, and penetration testing using industry-standard methodologies and tools. Deliver security awareness training and phishing simulations to internal stakeholders. Ensure compliance with company policies and More ❯

Oversee and maintain security equipment including firewalls, intrusion prevention systems (IPS), web application firewalls (WAF), and antivirus systems. Perform periodic security drills and regular penetration testing to ensure the integrity of security systems. Harden security controls across Windows and Linux environments and ensure regular patching and firmware upgrades. … encryption practices during usage, storage, transfer, and disposal. Conduct security evaluations on network and firewall policies and manage application security in both development and testing phases (SAST, DAST). Liaise with internal audit teams and international cybersecurity operations centres to implement security policies and controls. Provide cybersecurity training to More ❯

Sentinel Tenable Vulnerability Management (Or similar technology) Azure Security understanding Azure update Manager/Other Patching technologies Qualifications: Microsoft Security Certifications (eg SC200) Pen Testing/Related Certifications DESIRED KNOWLEDGE, SKILLS & EXPERIENCE The ability to demonstrate knowledge in some of the below would add significant value to your application. More ❯

Sophos MTR and Splunk. Maintain system security by configuring firewalls, VPNs, and intrusion detection systems, and ensuring timely patching. Manage vulnerability remediation based on penetration test results and risk assessments. Conduct penetration tests. Investigate security incidents, conduct forensic analysis, and apply swift mitigation actions. Stay current on security … support system upgrades. Experience needed of the Security Specialist: Strong expertise in cybersecurity, networking and wider infrastructure. Ability to manage and resolve security issues. Penetration testing experience. Red team/Ethical hacking/real time security defence experience is an added bonus. Skilled in security tools such as More ❯

Code principles Establish and maintain security controls and monitoring systems aligned with ISO27001 requirements Build and maintain CI/CD pipelines with integrated security testing and compliance checks Implement automated security scanning and vulnerability management processes Develop and maintain disaster recovery and backup solutions for critical systems Configure and … best practices and implementing Zero Trust architecture Experience with healthcare compliance requirements (ISO27001, ISO13485, HIPAA) and security controls Proven track record implementing automated security testing and vulnerability management Strong knowledge of monitoring and observability tools (Azure Monitor, Application Insights) Experience implementing secure networking and identity management solutions in Azure … teams Track record of building secure and compliant DevOps practices Desired Skills Experience with quality management systems in medical device software development Experience of penetration testing Background in implementing Agile methodologies Experience of startup environments More ❯

place to protect critical systems and data. Responsibilities Develop and implement Vulnerability Management Strategy. Lead Threat Intelligence and Threat Modelling. Oversee Vulnerability Assessments and Penetration Testing. Collaborate on Security Incident Response. Ensure Compliance with Security Standards. Stakeholder Communication and Reporting. Leadership and Team Accountability. Skills & Experience Mininum of … Defender. In-depth knowledge of security frameworks and compliance standards, such as ISO 27001, NIST, GDPR, and PCI-DSS. Experience in coordinating or conducting penetration testing, red teaming, and handling security incidents. Experience with managing security projects and teams. Interview Process Recruiter Call Hiring Manager Intro Final Interview More ❯

Harrington Starr have partnered with a global multi billion pound business in Belfast as they seek a Vulnerability and Penetration Testing Engineer to join their Belfast Centre team in providing security architecture, vulnerability and risk assessment. We are open to speaking to suitable canddiates who may be open … tools, scripts, and techniques that improve existing assessment capabilities. Essential Criteria: r+ years in a pen test role Excellent knowledge of Vulnerability and Penetrating Testing concepts and best practices, including the requirements for WhiteHat/Ethical Hacking. Experience with automated tools such as Nessus, Appscan, Burp Suite, Nipper, and … Trustwave. Expert understanding of the difference between a vulnerability assessment and a penetration test in the context of assessment scope, objectives, and deliverables. Working knowledge of information security frameworks such as ISO27001, NIST, and CIS. If this sounds like a good opportunity, apply today. Unfortunately no sponsorship is on More ❯