maintain secure network boundaries Support certificate and key management following encryption and PKI best practices Vulnerability, Threat, and Risk Management Automate vulnerability scanning and penetration testing using tools (Qualys, Nessus, OpenVAS) and custom scripts Coordinate third-party penetration tests and track remediation actions Conduct ongoing threat modelling, patch management, and risk assessments Perform regular configuration reviews, compliance checks, and More ❯
maintain secure network boundaries Support certificate and key management following encryption and PKI best practices Vulnerability, Threat, and Risk Management Automate vulnerability scanning and penetration testing using tools (Qualys, Nessus, OpenVAS) and custom scripts Coordinate third-party penetration tests and track remediation actions Conduct ongoing threat modelling, patch management, and risk assessments Perform regular configuration reviews, compliance checks, and More ❯
maintain secure network boundaries Support certificate and key management following encryption and PKI best practices Vulnerability, Threat, and Risk Management Automate vulnerability scanning and penetration testing using tools (Qualys, Nessus, OpenVAS) and custom scripts Coordinate third-party penetration tests and track remediation actions Conduct ongoing threat modelling, patch management, and risk assessments Perform regular configuration reviews, compliance checks, and More ❯
maintain secure network boundaries Support certificate and key management following encryption and PKI best practices Vulnerability, Threat, and Risk Management Automate vulnerability scanning and penetration testing using tools (Qualys, Nessus, OpenVAS) and custom scripts Coordinate third-party penetration tests and track remediation actions Conduct ongoing threat modelling, patch management, and risk assessments Perform regular configuration reviews, compliance checks, and More ❯
london (city of london), south east england, united kingdom
UIB (also known as Union Insurance Services)
maintain secure network boundaries Support certificate and key management following encryption and PKI best practices Vulnerability, Threat, and Risk Management Automate vulnerability scanning and penetration testing using tools (Qualys, Nessus, OpenVAS) and custom scripts Coordinate third-party penetration tests and track remediation actions Conduct ongoing threat modelling, patch management, and risk assessments Perform regular configuration reviews, compliance checks, and More ❯
maintain secure network boundaries Support certificate and key management following encryption and PKI best practices Vulnerability, Threat, and Risk Management Automate vulnerability scanning and penetration testing using tools (Qualys, Nessus, OpenVAS) and custom scripts Coordinate third-party penetration tests and track remediation actions Conduct ongoing threat modelling, patch management, and risk assessments Perform regular configuration reviews, compliance checks, and More ❯
Farnborough, Hampshire, South East, United Kingdom Hybrid / WFH Options
Talent Locker
Azure/Microsoft 365 support and management. PowerShell scripting. EUD provisioning (Autopilot), patching and hardening. Understanding of SSO and protectively marked environments. (Nice to have: Kubernetes, DevSecOps tooling, Elastic, Nessus, Terraform, HashiCorp Vault, application packaging, Agile sprint delivery.) What makes this different Be part of secure, meaningful defence programmes. Work directly with directors in a growing, innovative business. Protected More ❯
PowerShell. EUD provisioning (Autopilot), maintenance, patching and hardening.SSO – concepts and operation. Understanding of working in protectively marked environments. Desirable skills: Kubernetes administration e.g. VMware TKGI DevSec Ops Tooling Elastic Nessus Application Packaging HashiCorp Terraform HashiCorp Vault Experience working in Agile sprints Responsibilities will be defined during induction and are likely to include: Maintain, improve, and secure the clients multi More ❯
PowerShell. EUD provisioning (Autopilot), maintenance, patching and hardening.SSO – concepts and operation. Understanding of working in protectively marked environments. Desirable skills: Kubernetes administration e.g. VMware TKGI DevSec Ops Tooling Elastic Nessus Application Packaging HashiCorp Terraform HashiCorp Vault Experience working in Agile sprints Responsibilities will be defined during induction and are likely to include: Maintain, improve, and secure the clients multi More ❯
PowerShell. EUD provisioning (Autopilot), maintenance, patching and hardening.SSO - concepts and operation. Understanding of working in protectively marked environments. Desirable skills: Kubernetes administration e.g. VMware TKGI DevSec Ops Tooling Elastic Nessus Application Packaging HashiCorp Terraform HashiCorp Vault Experience working in Agile sprints Responsibilities will be defined during induction and are likely to include: Maintain, improve, and secure the clients multi More ❯
PowerShell. EUD provisioning (Autopilot), maintenance, patching and hardening.SSO - concepts and operation. Understanding of working in protectively marked environments. Desirable skills: Kubernetes administration e.g. VMware TKGI DevSec Ops Tooling Elastic Nessus Application Packaging HashiCorp Terraform HashiCorp Vault Experience working in Agile sprints Responsibilities will be defined during induction and are likely to include: Maintain, improve, and secure the clients multi More ❯
PowerShell. EUD provisioning (Autopilot), maintenance, patching and hardening.SSO – concepts and operation. Understanding of working in protectively marked environments. Desirable skills: Kubernetes administration e.g. VMware TKGI DevSec Ops Tooling Elastic Nessus Application Packaging HashiCorp Terraform HashiCorp Vault Experience working in Agile sprints Responsibilities will be defined during induction and are likely to include: Maintain, improve, and secure the clients multi More ❯
PowerShell. EUD provisioning (Autopilot), maintenance, patching and hardening.SSO – concepts and operation. Understanding of working in protectively marked environments. Desirable skills: Kubernetes administration e.g. VMware TKGI DevSec Ops Tooling Elastic Nessus Application Packaging HashiCorp Terraform HashiCorp Vault Experience working in Agile sprints Responsibilities will be defined during induction and are likely to include: Maintain, improve, and secure the clients multi More ❯
Stack You'll Work With: OS: Windows Server, Hardened Linux Containers/Orchestration: Docker, Kubernetes, Portainer DevOps Tools: Jenkins, Artifactory, Jira, Azure DevOps Virtualization: Nutanix, VMware Security: Defender, Wazuh, Nessus, OPSWAT Monitoring: PRTG, Zabbix Access/Apps: Citrix Netscaler, KASM Who You Are You're resilient, resourceful, and ready to lead. You enjoy solving problems at scale, delivering results More ❯
PowerShell. EUD provisioning (Autopilot), maintenance, patching and hardening.SSO - concepts and operation. Understanding of working in protectively marked environments. Desirable skills: Kubernetes administration e.g. VMware TKGI DevSec Ops Tooling Elastic Nessus Application Packaging HashiCorp Terraform HashiCorp Vault Experience working in Agile sprints Responsibilities will be defined during induction and are likely to include: Maintain, improve, and secure the clients multi More ❯
Manchester, Lancashire, England, United Kingdom Hybrid / WFH Options
4Square Recruitment Ltd
security capability. What You’ll Bring 2–5 years’ experience in ethical hacking or penetration testing. Strong understanding of OWASP, web, and infrastructure testing. Experience with Burp Suite, Nmap, Nessus, Qualys, Metasploit, Kali Linux. Familiarity with cloud security (AWS, Azure, or GCP). Confident communicator with client-facing experience. Bonus points for: Public sector testing experience. Code review skills More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Digital Waffle
Skills & Experience 3-5+ years' professional penetration testing/offensive security experience Strong understanding of enterprise infrastructure, AD security, networking, and protocols Proficiency with tools such as Nmap, Nessus, Metasploit, BloodHound, Burp Suite, Kali/Linux toolsets Solid track record of delivering infrastructure pentests end-to-end Excellent communication skills, including producing business-focused reporting Preferred Qualifications CHECK More ❯
are focused on the Penetration Testing market. What makes them stand out? They are not interested in flashy marketing and would never be caught trying to pass off a Nessus scan as a Penetration Test. The business has been built on delivering excellent testing and reports as well as ensuring that clients see the real benefits of their testing More ❯
network devices What We're Looking For? Self-driven individual with relevant vulnerability management function experience. Proven experience with products dealing with vulnerability management services which include - Rapid7, Qualys, Nessus etc. Strong understanding on Windows systems, Linux systems Strong understanding on Networking Should have completed certifications like CEH, ECSA or other equivalent security certifications Degree in Information Technology, Engineering More ❯
systems Proven ability to design secure networks: switching, routing, firewalls Familiarity with MITRE ATT&CK for ICS , Bow-Tie Analysis, and adversary simulation Hands-on experience with tools like Nessus, Nmap, Metasploit , fuzzing tools Knowledge of compliance frameworks: NIST 800-53/800-82, ISO 27001, IEC 62443, HSE OG-86, NIS-R Experience with DFIR operations in industrial More ❯
systems Proven ability to design secure networks: switching, routing, firewalls Familiarity with MITRE ATT&CK for ICS , Bow-Tie Analysis, and adversary simulation Hands-on experience with tools like Nessus, Nmap, Metasploit , fuzzing tools Knowledge of compliance frameworks: NIST 800-53/800-82, ISO 27001, IEC 62443, HSE OG-86, NIS-R Experience with DFIR operations in industrial More ❯
Manchester, Lancashire, United Kingdom Hybrid / WFH Options
4Square Recruitment Ltd
testing or ethical hacking. Strong background in web, API, and infrastructure testing . Familiarity with cloud environments and associated security considerations. Proficient with standard tools like Burp Suite, Nmap, Nessus, Qualys, Metasploit, Kali Linux . Understanding of OWASP and modern testing methodologies. Confident communicator - able to work directly with clients. Bonus Points For: Code review capability in Python, Java More ❯
Manchester Area, United Kingdom Hybrid / WFH Options
4Square Recruitment Ltd
testing or ethical hacking. Strong background in web, API, and infrastructure testing . Familiarity with cloud environments and associated security considerations. Proficient with standard tools like Burp Suite, Nmap, Nessus, Qualys, Metasploit, Kali Linux . Understanding of OWASP and modern testing methodologies. Confident communicator — able to work directly with clients. Bonus Points For: Code review capability in Python, Java More ❯
warrington, cheshire, north west england, united kingdom Hybrid / WFH Options
4Square Recruitment Ltd
testing or ethical hacking. Strong background in web, API, and infrastructure testing . Familiarity with cloud environments and associated security considerations. Proficient with standard tools like Burp Suite, Nmap, Nessus, Qualys, Metasploit, Kali Linux . Understanding of OWASP and modern testing methodologies. Confident communicator — able to work directly with clients. Bonus Points For: Code review capability in Python, Java More ❯
bolton, greater manchester, north west england, united kingdom Hybrid / WFH Options
4Square Recruitment Ltd
testing or ethical hacking. Strong background in web, API, and infrastructure testing . Familiarity with cloud environments and associated security considerations. Proficient with standard tools like Burp Suite, Nmap, Nessus, Qualys, Metasploit, Kali Linux . Understanding of OWASP and modern testing methodologies. Confident communicator — able to work directly with clients. Bonus Points For: Code review capability in Python, Java More ❯