Cyber Security Jobs

RiverSafe · London

Client-facing consulting role leading end-to-end security engagements across security architecture, cloud security, DevSecOps, application security and security operations. You'll run workshops, design controls in AWS/Azure/GCP, produce risk-based deliverables and help identify follow-on work, contributing to proposals and account growth.

Appvia · London · £75,000 – £90,000 pa

Design, build and operate secure AWS platforms using Terraform, Kubernetes/EKS and CI/CD for public and private sector clients. You will own technical delivery in your area, create reusable modules and deployment patterns, and mentor less experienced engineers within multi-disciplinary consulting teams.

Oscar Technology · London · £60,000 – £65,000 pa

Hands-on penetration tester owning engagements end to end across web applications, infrastructure, cloud platforms and APIs, from scoping through testing, reporting and client debriefs. Works alongside experienced testers, contributing to methodologies and tooling, with scope to develop in AI security assessments, assumed breach and red teaming.

Akkodis · London

Hands-on penetration testing across web, API, infrastructure and cloud engagements for a predominantly commercial client base, combined with mentoring junior consultants and producing high-quality client reports. Works closely with the Head of Penetration Testing to shape and grow the service, including pre-sales and client discussions.

SmartSourcing Ltd · Manchester · £60,000 – £80,000 pa

This role involves conducting comprehensive penetration tests across networks, web and mobile applications, APIs, and cloud environments using both manual and automated techniques. The tester will simulate real-world cyberattacks, identify vulnerabilities, and produce detailed technical and executive reports with actionable remediation advice. A key focus is translating complex security findings for non-technical stakeholders while adhering to strict ethical and compliance standards in a security-cleared context.

VIQU IT · London · £60,000 – £65,000 pa

Deliver end-to-end penetration testing engagements, from scoping through to reporting and client debriefs, across web applications, APIs, infrastructure, networks, cloud and mobile environments. Work directly with clients on a consultancy basis, producing technical reports and contributing to proposals, capability development and tooling. Requires strong Burp Suite, web/API and infrastructure testing skills, with Red Teaming and cloud security experience desirable.

10Nex Consultancy · Grange, Greater London · £55,000 – £60,000 pa

Conducts penetration tests across web applications, infrastructure, cloud environments and APIs, with exposure to Active Directory, AWS/Azure/GCP and tools like Burp Suite, Kali Linux, Nmap and Metasploit. Owns testing engagements end to end, writes clear reports and advises clients on remediation, with scope to move into red teaming, assumed breach and AI security.

TRIA · Manchester · £550 – £650 pd

SC Penetration Tester£600 - £700 A Day Outside IR356 MonthsRemote (Occasional Manchester travel)We are looking for a security cleared penetration tester to support a public sector customer to deliver high-assurance security testing.The role offers the opportunity to work on complex...

Nigel Wright Group · Newcastle upon Tyne · £50,000 – £70,000 pa

Hands-on senior penetration tester joining a professional services group to help build and scale a new penetration-testing capability. Delivers infrastructure tests and some web application assessments, leads complex engagements from scoping to reporting, provides quality assurance for Cyber Essentials Plus, coaches junior colleagues and engages clients in technical pre-sales.

RMT Accountants & Business Advisors · Newcastle upon Tyne

Lead and deliver infrastructure, web application and cloud penetration testing engagements, plus Cyber Essentials Plus assessments and technical security reviews. As one of the practice's early senior hires, you will shape methodologies, assure report quality, mentor junior consultants and support pre-sales for a growing national cyber security consultancy.

Pertemps Thames Water · Reading · £72,000 pa

Supports the design, implementation and maintenance of threat and vulnerability management controls across a large water utility's IT estate. Conducts network, application and code penetration testing, exploits vulnerabilities via proof-of-concept testing, and helps build an internal pen testing function. Works hybrid in Reading, liaising with Digital teams on remediation, patching and threat hunting.

Salt Search · London · £75,000 – £110,000 pa

This role involves conducting manual penetration testing and security assessments of web applications, APIs, and enterprise platforms. You will identify and exploit vulnerabilities, produce detailed technical reports, and work closely with application owners and security stakeholders to improve the organization's cyber resilience.

FlexIT Talent Solutions Ltd · London · £65,000 pa

Conduct penetration testing engagements across network, cloud, and web application environments, delivering technical assessments and client-facing reporting. Work collaboratively within a security team while managing independent projects and supporting client scoping discussions. Focus on identifying and communicating security risks clearly to both technical and non-technical stakeholders.

eFinancialCareers · London · £105,000 pa

Plan and deliver penetration-testing engagements across IT and OT estates, assessing industrial control systems, operational networks and connected infrastructure, plus cloud, mobile, network, web and API environments. Produce technical and executive reports, present remediation advice to clients, and support internal tooling, methodologies and CREST-accredited training. Work spans energy, wind, nuclear, CNI and manufacturing programmes.

Amazon · Virtual Location - Uk

Adversarial security testing role on AWS's Continuous Security Testing team, turning threat intelligence and scanner signals into testable hypotheses against live production services. Combines hands-on penetration testing with AI-augmented source code review, tracing chained attack paths and building lasting detections, canaries and fuzzers. Also involves testing agentic AI systems and mentoring engineers.

Matchtech · London · £580 pd

Hands-on penetration testing and vulnerability assessments across infrastructure, networks and applications, producing technical reports and remediation recommendations. Works with technical and project teams on risk assessments and security assurance, aligning testing with industry standards. Short-term contract, fully remote, inside IR35.

Amazon · Virtual Location - Uk

Leads complex security testing engagements end-to-end across interconnected AWS microservice architectures, performing penetration testing and AI-augmented source code review. Investigates high-consequence risk hypotheses to documented conclusions, builds reusable mechanisms like fuzzers and detection rules, and mentors engineers while setting the team's peer-review bar.