Penetration Tester - Permanent - Fully Remote in Chelmsford
Penetration Tester - Permanent - Fully Remote

Penetration Tester - Permanent - Fully Remote in Chelmsford

Chelmsford Full-Time 55000 - 90000 £ / year (est.) Home office possible
Oscar Associates (UK) Limited

At a Glance

  • Tasks: Conduct penetration tests on web apps, APIs, and infrastructure while leading client engagements.
  • Company: Join a top UK consultancy with a strong focus on offensive security.
  • Benefits: Enjoy a competitive salary, remote work, travel expenses, and an overnight bonus.
  • Other info: Flexible roles available for mid and senior levels with excellent career growth.
  • Why this job: Make a real impact in cybersecurity while working fully remotely.
  • Qualifications: Experience in penetration testing and strong communication skills.

The predicted salary is between 55000 - 90000 £ per year.

We are looking for experienced Penetration Testers to join one of the UK's larger dedicated offensive security practices. With a team of around 70 testers split across CHECK and CREST work, this is a well-established consultancy delivering high-quality assessments across a broad client base, with genuine variety in engagement type, sector, and technical depth.

Multiple roles are available across mid and senior levels, and the company is flexible on starting clearance level. This role is fully remote with client site visits as required.

  • Deliver web application, API, and infrastructure penetration tests, taking ownership of engagements end-to-end from scoping through to final report delivery.
  • Lead client-facing engagements, communicating high-risk findings as they are identified to support swift remediation.
  • Produce clear, professional reports tailored to client-specific context and business risk.
  • Contribute to internal QA, mentor more junior consultants, and support report quality across the team.

Hands-on experience delivering web application, API, and/or infrastructure penetration tests in a professional consultancy setting is required.

Salary: £55,000 - £90,000, depending on experience, certifications and clearance level.

Benefits include:

  • Fully remote working
  • Overnight bonus for client site visits
  • Travel and expenses covered for client work
  • Company pension scheme

Penetration Tester - Permanent - Fully Remote in Chelmsford employer: Oscar Associates (UK) Limited

Join a leading offensive security consultancy that values flexibility and employee growth, offering a fully remote working environment with opportunities for client site visits. With a strong focus on professional development, mentorship, and a collaborative culture, you will engage in diverse penetration testing projects while enjoying competitive salaries and comprehensive benefits, including travel expenses and an overnight bonus for site work.
Oscar Associates (UK) Limited

Contact Detail:

Oscar Associates (UK) Limited Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Penetration Tester - Permanent - Fully Remote in Chelmsford

✨Tip Number 1

Network like a pro! Connect with fellow penetration testers on LinkedIn or join relevant forums. Engaging with the community can lead to job opportunities that aren't even advertised.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your best penetration tests, including reports and findings. This will give potential employers a taste of what you can do and set you apart from the crowd.

✨Tip Number 3

Prepare for interviews by brushing up on common penetration testing scenarios. Be ready to discuss your approach to different types of tests and how you handle client communications. We want you to shine!

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who take the initiative to connect directly with us.

We think you need these skills to ace Penetration Tester - Permanent - Fully Remote in Chelmsford

Penetration Testing
CHECK Certification
CREST Certification
Web Application Testing
API Testing
Infrastructure Testing
Client Engagement
Report Writing
Quality Assurance
Mentoring
Risk Assessment
Communication Skills
Technical Research
Community Involvement

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that match the Penetration Tester role. Highlight your hands-on experience with web applications, APIs, and infrastructure testing to grab our attention!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about penetration testing and how your background makes you a great fit for our team. Keep it professional but let your personality show!

Showcase Your Projects: If you've worked on any relevant projects, whether in a professional setting or through platforms like Hack The Box or TryHackMe, make sure to mention them. We love seeing practical examples of your skills in action!

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it’s super easy!

How to prepare for a job interview at Oscar Associates (UK) Limited

✨Know Your Stuff

Make sure you brush up on your technical skills, especially around web applications, APIs, and infrastructure penetration testing. Be ready to discuss specific tools and methodologies you've used in past engagements, as this will show your hands-on experience.

✨Tailor Your Approach

When preparing for the interview, think about how you can tailor your responses to align with the company's focus on high-quality assessments. Highlight any relevant projects or experiences that demonstrate your ability to deliver clear, professional reports and communicate findings effectively.

✨Show Your Passion

Engage with the community! Mention any involvement with platforms like Hack The Box or TryHackMe, and any certifications you've earned. This not only shows your commitment to continuous learning but also your enthusiasm for the field of penetration testing.

✨Ask Insightful Questions

Prepare some thoughtful questions about the company’s approach to offensive security practices. Inquire about the team dynamics, the types of clients they work with, and how they support the development of their testers. This demonstrates your genuine interest in the role and the company.

Penetration Tester - Permanent - Fully Remote in Chelmsford
Oscar Associates (UK) Limited
Location: Chelmsford

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