11 of 11 Permanent Penetration Testing Jobs in Slough

SC cleared. pen tester

Hiring Organisation
PROCHECKUP LIMITED
Location
Slough, Berkshire, UK
Employment Type
Full-time
Opportunity ProCheckUp, an elite independent cybersecurity consultancy serving FTSE 100 corporations, UK government authorities, and international financial institutions, is seeking an experienced Penetration Tester with SC Clearance to join our expanding remote team. This is an exceptional opportunity to conduct high-impact security assessments across diverse enterprise environments while … working. You'll contribute to ProCheckUp's ambitious expansion phase, working alongside industry-leading security professionals on mission-critical infrastructure, applications, and network security testing for the UK's most security-conscious organizations. What You'll Do Core Responsibilities: Conduct advanced penetration testing across network infrastructure ...

Senior Principal Offensive Security Engineer

Hiring Organisation
Oracle
Location
Slough, Berkshire, UK
Employment Type
Full-time
services meet the security objectives we communicate to customers. The Offensive Security group performs security assessments, vulnerability research, static and dynamic analysis research, penetration testing, red-teaming, and security tool development. We ensure the security of the software and hardware that runs our cloud infrastructure and strive … services meet the security objectives we communicate to customers. The Offensive Security group performs security assessments, vulnerability research, static and dynamic analysis research, penetration testing, red-teaming, and security tool development. We ensure the security of the software and hardware that runs our cloud infrastructure and strive ...

Penetration Tester

Hiring Organisation
CBSbutler
Location
Slough, Berkshire, UK
Employment Type
Full-time
Cleared Pentester Contract - 6 Months Rolling - Hybrid Reading - £515 PD Inside IR35 We're seeking a skilled Penetration Tester for a 6 month rolling contract starting in the New Year. The role is hybrid (3 days on site, 2 days remote) at a client site near Reading. Key details … quality reports with clear remediation recommendations, and contributing to broader security consultancy projects. Essential requirements: Active SC clearance Proven 2 or 3 years in penetration testing CHECK Team Member (CTM) qualification (CREST or CyberScheme) Strong experience with Azure cloud pentesting (plus AWS is a bonus) Proficiency in penetration ...

Principal Consultant

Hiring Organisation
Palo Alto Networks
Location
Slough, Berkshire, UK
Employment Type
Full-time
scripts, tools, and methodologies to automate and streamline internal processes and engagements - Examples include Terraform and Ansible, custom payload generators/loaders Conduct cloud penetration testing engagements to assess specific workloads (i.e., AWS, GCP, Azure, containers, or other PaaS and SaaS instances) for vulnerabilities and subsequently attempt … stakeholders Lead scoping and services overview conversations with clients for prospective engagements in area of expertise, presenting with credibility and authority, clearly articulating various testing approaches and methodologies to audiences ranging from highly technical to executive personnel Determines processes and procedures to be followed on assignments - On large ...

Penetration Tester

Hiring Organisation
Digital Waffle
Location
Slough, Berkshire, UK
Employment Type
Full-time
Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Security & Compliance Specialist

Hiring Organisation
Complexio
Location
Slough, Berkshire, UK
Employment Type
Full-time
readiness. Provide insights and triage signals from security tooling (SAST, DAST, dependency scanning, SIEM). Work hands-on to perform internal security assessments or penetration testing. Manage relationships with external pentest providers, auditors, and assessors. Secure Development Lifecycle (SDLC) Partner with engineering teams to embed security in the SDLC … security standards and frameworks (ISO 27001, SOC 2, CIS, NIST, GDPR, EU AI Act). Hands-on technical skills in areas such as penetration testing, application security, or infrastructure hardening. Familiarity with modern software development practices, DevSecOps, and cloud-native architectures (preferably Python eco-system, Kubernetes and Azure ...

Senior Cloud Security Engineer

Hiring Organisation
Cint
Location
Slough, Berkshire, UK
Employment Type
Full-time
call rotation and assist with troubleshooting issues that arise Defining and implementing a Security Incident Response process/policy with regular evolvement, testing and adherence Required Qualifications Three years or more experience in Cloud Infrastructure roles (predominantly AWS) working within teams that practice DevSecOps Ability to interact comfortably with … more of: Graphite, Statsd, Prometheus, Grafana, OpenSearch Any experience of ISO27001 certification processes Understanding of "cloud native" and 12-Factor applications Offensive or defensive penetration testing experience Additional Information Our Values Collaboration is our superpower We uncover rich perspectives across the world Success happens together We deliver across ...

Security Engineer

Hiring Organisation
Granola
Location
Slough, Berkshire, UK
Employment Type
Full-time
robust security culture as we unlock Granola for the next 100x users. In this role, you will: Conduct security assessments, code reviews, and penetration testing to identify vulnerabilities in our applications Design and implement security tools, frameworks, and methodologies to protect against security threats Work closely with development ...

Senior Cyber Consultant

Hiring Organisation
LT Harper - Cyber Security Recruitment
Location
Slough, Berkshire, UK
Employment Type
Full-time
assessments against frameworks like Cyber Essentials, ISO27001, NIST, and CIS. Spotting & Fixing Issues: Carrying out vulnerability assessments and helping deliver services like MDR, Pen Testing, and DLP. Offering Straightforward, Practical Advice: Guiding clients on governance, incident response, and awareness training — becoming someone they trust to steer them ...

Java Specialist

Hiring Organisation
Pyramid Consulting, Inc
Location
Slough, Berkshire, UK
Employment Type
Full-time
development lifecycle in a fast-paced environment. Deliver enhancements, bug fixes, and feature implementations. Design and articulate solutions using UML. Fix issues identified during penetration testing. Contribute to continuous improvement and best engineering practices. Required Skills & Experience 15+ years of overall IT experience, with 10–12+ years in Java ...

CHECK Pen Tester , CSTM

Hiring Organisation
BreachLock, Inc
Location
Slough, Berkshire, UK
Employment Type
Full-time
CHECK-Certified Penetration Tester – UK (Remote) | BreachLock BreachLock is a global leader in Continuous Attack Surface Discovery and Penetration Testing. Our AI-enhanced PTaaS and Adversarial Exposure Validation platforms deliver evidence-based risk insights for enterprises worldwide. We are expanding our UK offensive security team and hiring … CHECK-certified Penetration Tester to support our growing portfolio of government and enterprise clients. Eligibility Requirement (Important) You must already have the legal right to work in the United Kingdom and be physically residing in the UK. BreachLock cannot provide visa sponsorship for this role. What ...