Senior Penetration Tester (RED TEAM)
Senior Penetration Tester (RED TEAM)

Senior Penetration Tester (RED TEAM)

Watford Full-Time 48000 - 84000 £ / year (est.) Home office possible
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BreachLock is a global leader in Continuous Attack Surface Discovery and Penetration Testing. We provide enterprises with evidence-based risk across their entire attack surface to determine how they will respond to an attack. Our services include Attack Surface Management, Penetration Testing, and Red Teaming.

Join BreachLock’s elite offensive security team, where we don’t just simulate threats — we emulate real adversaries. As a Red Team Specialist, you will be at the frontlines of BreachLock’s offensive security operations, conducting advanced adversary emulation, bypassing modern defenses, and helping Fortune 500 clients improve their cyber resilience.

What You’ll Do:
  • Plan and execute full-scope red team engagements (TIBER-style, MITRE ATT&CK aligned)
  • Perform focused penetration tests on web applications, mobile apps (iOS/Android), APIs, and backend services, as well as traditional network/cloud infrastructure and specialised targets (IoT/OT) when required.
  • Simulate APTs using custom tooling and native techniques
  • Bypass EDR/XDR and evade detection controls
  • Work closely with Blue Teams for purple teaming and adversarial validation
  • Deliver executive reports and technical debriefs with precision
What You Bring:
  • 3+ years in red teaming or offensive security
  • Proficiency with C2 frameworks (Cobalt Strike, Sliver, Mythic)
  • Deep understanding of Windows/Linux internals, AD, and cloud (AWS/Azure)
  • Knowledge of OPSEC, evasive TTPs, and threat intelligence integration
  • Strong scripting skills (Python, PowerShell, Bash)
  • OSCP, CRTO, OSCE, or similar certs
  • Published exploits or open-source tools
Why BreachLock:
  • 100% remote-first culture
  • Cutting-edge work in PTaaS, AEV, and CTEM
  • Clients include global enterprises and governments
  • Fast-paced, growth-focused, no-BS environment
Why are we a Global Leader in Offensive Security:
  • Analyst Endorsements: Recognized again by Gartner, GigaOm, and SANS for advancing automated, AI-enhanced offensive security testing.
  • CTEM & AEV Leadership: Launched industry-first AI-powered CTEM and Adversarial Exposure Validation platforms, setting new benchmarks in exposure management.
  • GigaOm Leader (2025): Ranked as a Leader and Fast Mover for the second consecutive year in the GigaOm Radar for PTaaS and CTEM.
  • Media Spotlight: Featured in Reuters, Cybercrime Magazine, and SecurityWeek for driving measurable outcomes for Fortune 500 clients.

Senior Penetration Tester (RED TEAM) employer: BreachLock, Inc.

BreachLock is an exceptional employer for those seeking to make a significant impact in the field of cybersecurity. With a 100% remote-first culture, employees enjoy the flexibility to work from anywhere while engaging in cutting-edge projects that challenge their skills and foster professional growth. The company prioritises a fast-paced, growth-focused environment, offering opportunities to collaborate with global enterprises and governments, making it an ideal place for passionate individuals looking to advance their careers in offensive security.
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Contact Detail:

BreachLock, Inc. Recruiting Team

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the role of a Red Team Specialist. Highlight your experience in red teaming, penetration testing, and any relevant certifications. We want to see how your skills align with what we do at BreachLock!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re passionate about offensive security and how your background makes you a perfect fit for our team. Let us know what excites you about working with BreachLock.

Showcase Your Skills: Don’t just list your skills; demonstrate them! If you’ve published exploits or created open-source tools, mention them. We love seeing practical examples of your work that show us what you can bring to the table.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way to ensure your application gets into the right hands. Plus, it shows us you’re serious about joining our elite offensive security team!

How to prepare for a job interview at BreachLock, Inc.

✨Know Your Stuff

Make sure you brush up on your technical skills, especially around C2 frameworks and the MITRE ATT&CK framework. Be ready to discuss your experience with red teaming and penetration testing in detail, as well as any specific tools you've used.

✨Showcase Your Problem-Solving Skills

Prepare to talk about past challenges you've faced during engagements. Use the STAR method (Situation, Task, Action, Result) to structure your answers, highlighting how you approached complex problems and what the outcomes were.

✨Understand the Company’s Culture

Familiarise yourself with BreachLock's remote-first culture and their focus on cutting-edge security solutions. Show enthusiasm for their mission and values, and be ready to explain how you can contribute to their growth-focused environment.

✨Prepare Questions

Have a list of insightful questions ready to ask at the end of your interview. This could include inquiries about their approach to purple teaming or how they integrate threat intelligence into their operations. It shows you're genuinely interested and engaged.

Senior Penetration Tester (RED TEAM)
BreachLock, Inc.
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  • Senior Penetration Tester (RED TEAM)

    Watford
    Full-Time
    48000 - 84000 £ / year (est.)

    Application deadline: 2027-11-05

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    BreachLock, Inc.

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