Lead Penetration Tester — Cloud, Web & Mobile

Instil Software Ltd; Belfast; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading software engineering firm in Belfast is seeking a highly skilled Principal Penetration Tester to join their dynamic security team. This senior role involves leading complex penetration testing engagements across infrastructure, cloud, web, and mobile applications. The ideal candidate has CHECK Team Lead status and at least 5 years of experience in penetration testing. The position offers a flexible working environment, competitive benefits, and opportunities for personal growth.

Benefits

Discretionary annual performance bonus

Flexible working arrangements

Highly competitive pension scheme

Private healthcare

Employee Assistance Programme

35 days holiday

Opportunities for volunteer work

Qualifications

• Minimum 5 years of penetration testing experience.
• Deep expertise in web, mobile, and network penetration testing methodologies.
• Advanced knowledge of operating systems including Linux and Windows.

Responsibilities

• Lead and execute penetration tests across diverse applications.
• Manage end-to-end engagements: from scoping to client debriefing.
• Produce detailed reports outlining vulnerabilities and remediation steps.

Skills

Penetration testing experience

Cloud security reviews

Scripting skills (Python, Shell)

Communication skills

Education

CHECK Team Lead (CTL) status

UK SC Clearance

Tools

BurpSuite Pro

Nmap

Nessus

Metasploit

Kali Linux

Job description

A leading software engineering firm in Belfast is seeking a highly skilled Principal Penetration Tester to join their dynamic security team. This senior role involves leading complex penetration testing engagements across infrastructure, cloud, web, and mobile applications. The ideal candidate has CHECK Team Lead status and at least 5 years of experience in penetration testing. The position offers a flexible working environment, competitive benefits, and opportunities for personal growth.