Penetration Tester

Harnham - Data & Analytics Recruitment; Greater London; Remote; GBP 92,000 - 101,000; Full time

Job summary

Harnham - Data & Analytics Recruitment is helping a leading global retail organisation find an experienced Penetration Tester to support security projects across network, infrastructure and telecommunications environments.

You will own the full penetration testing lifecycle, from planning and execution through to reporting and presenting findings to stakeholders. This is a 6‑month contract outside IR35 with remote UK work.

Qualifications

• 5+ years' penetration testing experience.
• Strong infrastructure and network security testing background.
• Experience delivering end–to–end testing engagements independently.
• Excellent client–facing and stakeholder management skills.
• Ability to communicate technical findings to both technical and non–technical audiences.

Responsibilities

• Conduct infrastructure and network penetration tests
• Assess network architecture and security controls
• Identify vulnerabilities and provide remediation recommendations
• Produce high–quality technical reports
• Present findings directly to clients and stakeholders
• Manage engagements independently from start to finish

Skills

Penetration testing

Network security

Infrastructure testing

Vulnerability assessment

Technical reporting

Job description

Penetration Tester

6–Month Contract Outside IR35 GBP500–550pd Remote (UK)

We're working with a leading global retail organisation seeking an experienced Penetration Tester to support a growing portfolio of security projects across network, infrastructure and telecommunications environments.

This is a highly client–facing role where you'll own the full penetration testing lifecycle, from planning and execution through to reporting and presenting findings and recommendations to stakeholders.

Key Responsibilities

• Conduct infrastructure and network penetration tests
• Assess network architecture and security controls
• Identify vulnerabilities and provide remediation recommendations
• Produce high–quality technical reports
• Present findings directly to clients and stakeholders
• Manage engagements independently from start to finish

Requirements

• 5+ years' penetration testing experience
• Strong infrastructure and network security testing background
• Experience delivering end–to–end testing engagements independently
• Excellent client–facing and stakeholder management skills
• Ability to communicate technical findings to both technical and non–technical audiences

Desirable

• Operational Technology (OT) security exposure
• Experience within retail, manufacturing, or telecommunications environments
• OSCP, CREST, CHECK, or similar certifications