Salary: £60,000 - 80,000 per year Requirements: UK Bachelors degree in Computer Science, Cybersecurity or related subject (or UK Masters as alternative) 3-5 years commercial penetration testing experience Strong understanding of offensive security techniques, OWASP Top 10, MITRE ATT&CK Deep knowledge of operating systems, networking protocols, and system architecture Experience with penetration testing tools (Burp Suite, Metasploit, custom scripts) Excellent communication and report writing skills OSCP, CREST certifications (desirable) Bug bounty participation (desirable) Red team experience (desirable) Cloud security testing (AWS, Azure, GCP) (desirable) Active involvement in security community (CTFs, conferences, research) (desirable) Responsibilities: Conduct comprehensive penetration testing across web applications, infrastructure, APIs, and cloud environments Perform manual security assessments and exploitation Deliver client-facing penetration testing engagements Write detailed technical reports for various stakeholders Collaborate with internal teams on security improvements Technologies: AWS Azure Cloud GCP OWASP Security Web More: We are a fast-growing cybersecurity company seeking Senior Offensive Security Engineers to strengthen our offensive security capabilities. We value technical excellence and a passion for technology within our graduate-focused environment. This role is fully remote within the UK, with optional hybrid working from our London office. We are looking for candidates who demonstrate a genuine interest in offensive security and offer opportunities for continuous learning and development. last updated 4 week of 2026