Senior Penetration Tester

Senior Penetration Tester

Full-Time 48000 - 84000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Conduct hands-on penetration tests and uncover vulnerabilities in various systems.
  • Company: Join LSEG, a leading global financial markets infrastructure provider.
  • Benefits: Enjoy healthcare, retirement planning, paid volunteering days, and wellbeing initiatives.
  • Why this job: Make a real impact in cybersecurity while working with cutting-edge technologies.
  • Qualifications: Experience in penetration testing and strong technical skills required.
  • Other info: Be part of a diverse team that values innovation and continuous improvement.

The predicted salary is between 48000 - 84000 £ per year.

LSEG is seeking a Senior Penetration Tester to join our internal offensive security team. This role is hands-on and deeply technical, responsible for planning and driving penetration tests across a wide range of systems and applications. The successful candidate will be a skilled offensive security professional with a passion for uncovering vulnerabilities and improving security posture through thorough testing and teamwork.

Key Responsibilities
  • Conduct in-depth penetration tests on applications, infrastructure, and cloud environments.
  • Take full ownership of assigned penetration testing engagements end-to-end and deliver with limited oversight.
  • Compile technical scoping documents, track and document assessment metadata including engagement details, testing team members and roles, tools and methodologies used, schedule and timelines, target systems and environments, constraints, exclusions, and limitations, testing activities and event logs.
  • Document findings clearly and concisely, providing actionable remediation guidance.
  • Collaborate with application teams to scope, perform, and report on security assessments.
  • Contribute to team improvement efforts and ensure all initiatives and feedback are well documented for future references.
  • Contribute to the continuous improvement of testing methodologies, tooling, automation.
  • Stay ahead of emerging threats, vulnerabilities, and offensive security techniques.
  • Participate in R&D initiatives as guided from leadership.
  • Support educational sessions and mentoring within the team.
  • Develop and maintain custom tools, scripts, and exploits to support testing activities.
Required Skills & Experience
  • Proven hands-on experience in penetration testing of Web Applications, APIs, Thick Client and Common Infrastructures (Active Directory, Cloud and Cloud-native based environments).
  • Proficiency with tools such as Burp Suite, common command-line tools, and ability to write custom scripts when needed.
  • Experience in automating pentesting tasks.
  • Solid understanding of application security, network protocols, and operating systems.
  • Experience with cloud platforms (AWS, Azure, GCP) and containerized environments (Docker, Kubernetes).
  • Ability to write clear, technical reports and communicate findings to both technical and non-technical customers.
  • Experience working in large, sophisticated enterprise environments.
  • Proficient interpersonal skills in English, both written and verbal.
  • Relevant certifications and engagement with the security community is a plus.
  • Threat Modelling experience is a plus.
  • Proven track record of successfully managing and driving security engagements for various organizations with differing operational and technical profiles.
  • Ability to identify, assess, and communicate technical and project risks to partners.
  • Understanding project requirements and aligning results with agreed upon objectives and timelines.
Career Stage: Senior Associate

Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth. Our culture of connecting, creating opportunity and delivering excellence shapes how we think, how we do things and how we help our people fulfil their potential.

Senior Penetration Tester employer: London Stock Exchange Group

LSEG is an exceptional employer that fosters a collaborative and innovative work culture, empowering employees to bring their true selves to work. With a commitment to professional growth, tailored benefits including healthcare and wellbeing initiatives, and a strong focus on sustainability, LSEG provides a meaningful environment for Senior Penetration Testers to thrive and make a significant impact in the financial markets sector.
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Contact Detail:

London Stock Exchange Group Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Penetration Tester

✨Tip Number 1

Network like a pro! Reach out to your connections in the cybersecurity field, attend meetups, and engage in online forums. The more people you know, the better your chances of landing that Senior Penetration Tester role.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your penetration testing projects, tools you've developed, or any contributions to open-source security tools. This will give potential employers a taste of what you can bring to their team.

✨Tip Number 3

Prepare for interviews by brushing up on common penetration testing scenarios and methodologies. Practice explaining your thought process and how you tackle vulnerabilities. Remember, they want to see your problem-solving skills in action!

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you're genuinely interested in joining our team at LSEG. Don’t miss out on this opportunity!

We think you need these skills to ace Senior Penetration Tester

Penetration Testing
Web Application Security
API Security
Infrastructure Security
Cloud Security
Active Directory
Burp Suite
Command-Line Tools
Scripting
Automation of Pentesting Tasks
Application Security
Network Protocols
Operating Systems
Cloud Platforms (AWS, Azure, GCP)
Containerization (Docker, Kubernetes)
Technical Reporting
Threat Modelling
Risk Assessment
Project Management

Some tips for your application 🫡

Show Your Passion: When writing your application, let your enthusiasm for penetration testing shine through! We want to see your passion for uncovering vulnerabilities and improving security. Share any personal projects or experiences that highlight your skills.

Be Clear and Concise: Make sure your application is easy to read and straight to the point. Use clear language to describe your experience and skills, especially when it comes to technical aspects. We appreciate well-structured applications that get to the heart of what you can bring to our team.

Tailor Your Application: Don’t just send a generic application! Take the time to tailor your CV and cover letter to match the role of Senior Penetration Tester. Highlight relevant experiences and skills that align with our key responsibilities and required skills.

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 that you’re genuinely interested in joining our team at LSEG!

How to prepare for a job interview at London Stock Exchange Group

✨Know Your Tools Inside Out

Make sure you're well-versed in the tools mentioned in the job description, like Burp Suite and command-line utilities. Practise using them in real-world scenarios so you can confidently discuss your experience and how you've applied these tools in past penetration tests.

✨Prepare for Technical Questions

Expect to dive deep into technical discussions during the interview. Brush up on your knowledge of application security, network protocols, and cloud environments. Be ready to explain your thought process when identifying vulnerabilities and how you would approach different testing scenarios.

✨Showcase Your Communication Skills

Since you'll need to document findings and communicate with both technical and non-technical teams, practice explaining complex concepts in simple terms. Prepare examples of how you've successfully communicated findings in previous roles, highlighting your ability to tailor your message to your audience.

✨Demonstrate Team Collaboration

This role emphasises teamwork, so be prepared to discuss how you've collaborated with others in past projects. Share specific examples of how you've contributed to team improvement efforts or mentored colleagues, showcasing your commitment to fostering a positive team environment.

Senior Penetration Tester
London Stock Exchange Group
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