Penetration Testing Engineer; Offensive Security

APPIT Software Solutions is hiring a Penetration Testing Engineer (Offensive Security) in London, UK
. Conduct advanced penetration testing engagements across web applications, networks, and cloud environments, delivering actionable findings for APPIT Software Solutions in London.

• Plan and execute penetration testing engagements covering web applications, APIs, mobile apps, and internal/external networks
• Perform advanced exploitation techniques including privilege escalation, lateral movement, and Active Directory attacks
• Conduct red team exercises simulating real-world adversary tactics, techniques, and procedures (TTPs)
• Write detailed technical reports with clear risk ratings, proof-of-concept exploits, and prioritized remediation guidance
• Collaborate with blue team and engineering teams to validate fixes and improve detection capabilities
• Research emerging vulnerabilities, develop custom exploit tools, and maintain an up-to-date attack methodology library

• 5+ years of professional penetration testing or ethical hacking experience
• OSCP, OSCE, OSEP, or CREST CRT/CCT certification required
• Expert proficiency with penetration testing tools (Metasploit, Cobalt Strike, Burp Suite Professional, Nmap, Blood Hound)
• Strong understanding of network protocols (TCP/IP, DNS, HTTP/S), Active Directory, and common enterprise architectures
• Experience with cloud penetration testing across AWS, Azure, or GCP environments
• Ability to write custom scripts and exploits in Python, Power Shell, or C for engagement-specific needs

• Experience with purple team exercises and MITRE ATT&CK framework mapping
• Background in bug bounty programs with recognized findings
• Knowledge of IoT or OT/SCADA security testing

APPIT Software Solutions is a leading technology company building AI-powered enterprise products. Join 150+ professionals working on cutting-edge solutions in AI/ML, cloud computing, and digital transformation. We offer competitive salaries, flexible work arrangements, and opportunities for career growth across our global offices.