Penetration Tester (OSCP)
Penetration Tester (OSCP)
Location: Remote
Position Type: Full-time
Reports to: Senior Penetration Tester
About the Organisation
A high-growth security consultancy working across government, space programmes, and FTSE 100 organisations is expanding its offensive security function. The team delivers complex, high-impact testing and simulation work for clients across the UK, US, and Europe. With a strong learning culture, excellent retention, and a track record of delivering cutting-edge work, this is an opportunity to develop quickly in a technically challenging environment.
Role Overview
We’re looking for a Penetration Tester / Red Team Consultant with 1–3 years’ experience who thrives on variety, problem-solving, and continuous learning. You’ll deliver offensive security assessments, red team operations, and threat-led simulations across a wide range of sectors, often on weekly, part-time client engagements.
The role is remote, with occasional client visits — though none have been required in the last five years.
Key Responsibilities
- Deliver red team, purple team, and wider offensive security engagements.
- Conduct attack simulations, threat modelling, and targeted technical testing.
- Carry out occasional physical security assessments.
- Produce high-quality penetration testing and red team reports.
- Communicate findings clearly to both technical and non-technical stakeholders.
- Support the development of offensive security services and internal methodologies.
- Contribute to R&D on tools, techniques, and emerging threats.
- Maintain a strong learning mindset and proactively grow technical capability.
Required Skills & Experience
- 1–3 years’ experience in penetration testing, red teaming, or offensive security.
- OSCP certification
- Strong understanding of operating systems, networks, and application security.
- Practical offensive security experience: exploitation, AD attacks, recon, tooling, etc.
- Solid documentation and reporting skills.
- Ability to articulate vulnerabilities, impact, and remediation confidently.
- Desirable: exposure to ISO/IEC 42001 or experience as an auditor in AI governance.
What We Offer
- Annual £5,000 development fund per person
- Excellent retention, strong pay progression, and a supportive technical culture.
- Work on government, defence, space, and major corporate engagements.
- Remote-first working across UK/US/EU clients.
- Standard hours: 9am–5pm, Monday–Friday.
- 20 days holiday.
- Company
- 4Square Recruitment Ltd
- Location
- London, South East, England, United Kingdom
Hybrid/Remote Options - Employment Type
- Full-Time
- Salary
- £40,000 - £60,000 per annum
- Posted
- Company
- 4Square Recruitment Ltd
- Location
- London, South East, England, United Kingdom
Hybrid/Remote Options - Employment Type
- Full-Time
- Salary
- £40,000 - £60,000 per annum
- Posted