Penetration Tester - Outside IR35

Experis; City Of London; Remote; GBP 80,000 - 100,000; Full time

Job summary

A technology recruitment agency is seeking an experienced Penetration Tester for a fully remote 12-month contract. The role requires proficiency in web and infrastructure penetration testing, strong communication skills, and the ability to deliver clear technical findings. Join a team responsible for high-profile security initiatives with full project flexibility and Outside IR35 engagement.

Qualifications

• Strong experience in web and infrastructure penetration testing.
• Proficiency with offensive security tooling and methodologies.
• Ability to produce clear, structured, executive-level reporting.

Responsibilities

• Support a large-scale international security programme.
• Deliver high-quality offensive security assessments across applications, infrastructure, and networks.
• Plan, execute and report on testing activities.

Skills

Web penetration testing

Infrastructure penetration testing

Offensive security tools

Reporting

Network security

Application security

Scripting (Python, Go, PowerShell)

Education

Relevant certifications (OSCP, OSCE, OSWE, GPEN, CREST)

Job description

Role: Penetration Tester

Duration: 12 month Contract

Pay: Up to 500 per day (Outside IR35)

Location: Fully Remote

Excellent long term contract for an experienced Penetration Tester to support a large–scale international security programme, delivering high–quality offensive security assessments across applications, infrastructure, and networks.

You’ll be joining a specialist team responsible for delivering structured penetration tests, vulnerability assessments and security design reviews. Working within a defined AGILE sprint model, you will plan, execute and report on testing activities, producing clear technical findings, risk assessments and remediation guidance. Strong communication skills are essential, as you’ll deliver briefs to both technical teams and senior stakeholders.

The role requires hands–on experience with modern penetration testing tools and recognised methodologies, along with the ability to identify and exploit vulnerabilities across operating systems, networks, applications, and protocols. A background in scripting (Python, Go, PowerShell or shell) is highly desirable.

Key Requirements

• Strong experience in web and infrastructure penetration testing
• Proficiency with offensive security tooling and methodologies
• Ability to produce clear, structured, executive–level reporting
• Knowledge across network security, application security, cryptography and authentication
• SC / NATO SECRET security clearance (or eligibility to obtain)
• Relevant certifications (OSCP, OSCE, OSWE, GPEN, CREST) beneficial

This role offers the chance to contribute to a critical, high–profile security initiative while enjoying full flexibility and Outside IR35 engagement.

If you’re an experienced Pen Tester looking for your next long–term contract, I’d love to hear from you.

People Source Consulting Ltd is acting as an Employment Business in relation to this vacancy. People Source specialise in technology recruitment across niche markets including Information Technology, Digital TV, Digital Marketing, Project and Programme Management, SAP, Digital and Consumer Electronics, Air Traffic Management, Management Consultancy, Business Intelligence, Manufacturing, Telecoms, Public Sector, Healthcare, Finance and Oil & Gas.