BDO Digital Offensive Senior Security Analyst

Ideas | People | Trust

We’re BDO. An accountancy and business advisory firm,providing the advice and solutions businesses need to navigate today’s changing world.

We’re BDO. An accountancy and business advisory firm,providing the advice and solutions businesses need to navigate today’s changing world.

Our clients are Britain’s economic engine – ambitious, entrepreneurially-spirited andhighgrowth businesses that fuel the economy - and the owners and management teams that lead them.

Our Consulting team provide a wide variety of services that deliver value-led advice and outcomes. They have an in-depth knowledge of business, industry sectors and markets and understand the constantly changing risks and opportunities at the heart of our clients affairs.

The Digital team within Consultinghelpsour clients create competitive advantage and uncover new avenues of growth and profitability through digital strategies.

Strategies need to be bold, but they also need to deliver near-term results.

That’swhy we take a practical approach that marries long-term vision with quick wins and measurable ROI milestones.

Our vision is to be a fully integrated, business-led, end-to-end technology advisor and integrator helping clients to enable business change through leveraging technology.

Leading organisations trust us because of the quality of our advice. That quality grows from a thorough understanding of their business, and that understanding comes from working closely with them and building long-lasting relationships.

You’ll be someone who is both comfortable working proactively and managing your own tasks, as well as confident collaborating with others and communicating regularly with senior managers, directors, and BDO’s partners to help businesses effectively. You’ll be encouraged to identify and draw attention to opportunities for enhancing our delivery and providing additional services to organisations we work with.

We are seeking a skilled Offensive Security penetration tester to join our dynamic team. This role involves conducting sophisticated penetration testing and red team engagements across various client systems and applications. You’ll be instrumental in identifying vulnerabilities, enhancing client security postures, and leading initiatives to develop cutting-edge penetration testing methodologies and tools. You’ll have exposure to clients across industries and geographies, staying at the forefront of knowledge of the threat landscape, cyber defence best practices and regulatory expectations.

There will be opportunities to gain experience with web applications and API testing, Wireless assessments, Internal infrastructure tests, Mobile App security, Red and Purple team operations, Physical intrusion testing, hardware analysis, and more.

You’ll be someone with

• Certification in penetration testing such as OSCP (Offensive Security Certified Professional), CTM (Check Team Member), CRT (CREST Registered Tester) and OSWA (Offensive Security Web Attacks). OSEP(Off Sec Experience Penetration Tester), CCSAM (CREST Certified Simulated Attack Manager) and CTL (Check Team Leader).
• Offensive security—professional penetration testing, red teaming, bug bounty work, capture-the-flag competitions, or personal research projects.
• Proven ability to deliver impactful client engagements, demonstrating both technical depth and a practical understanding of risk.
• Deep knowledge of network protocols, different services, operating systems, different applications and how to break them.
• Proficiency in tools such as Metasploit, Burp Suite or other proxies such as Caido or Zap, Nessus, Cobalt Strike or other C2 frameworks
• Excellent problem-solving skills and a passion for ethical hacking
• Experience coding and scripting custom tools in Python, Bash, Power Shell.

It's at the core of the company's and team's vision. You’ll be able to truly be yourself; we’ll recognise and value you for who you are and celebrate and reward your contributions to the business. We’re committed to agile working, and we offer every colleague the opportunity to work in ways that suits them,…