Offensive Security - Senior Manager

Date:  30 Mar 2026
Location: 

Sydney, NSW, AU

Department:  Technology & Transformation
Description: 

Job Requisition ID: 40958 

About the role 

 

As part of the Deloitte Offensive Security team, you'll be responsible for defining, carrying out, and overseeing penetration testing projects to uncover security vulnerabilities in client's IT systems. You will be required to report on the identified vulnerabilities and provide recommendations for their remediation. Additionally, you will play a crucial role in the team, and other members will look to you as a subject matter expert for guidance and mentorship. 

 

Your responsibilities will include:

 

  • Leading business development initiatives, including proposal development, presentations, and identifying new opportunities with existing and prospective clients.
  • Managing and mentoring multi-disciplinary teams, fostering a collaborative and continuous learning culture.
  • Communicating directly with our client contacts to prepare, schedule and plan upcoming security testing activities.
  • Performing detailed, technical quality assurance activities to ensure we are delivering high-quality results for our clients. 
  • Leading the planning, resourcing and delivery of complex, multi-phase testing engagements (red team, purple team, application, cloud and infrastructure penetration testing, adversary simulation) ensuring scope, timelines, milestones and budgets are met.  
  • Cultivating a high-performance team culture that emphasises quality, continuous learning and collaborative problem-solving. 

 

About the team  

 
Positioned first globally in Security Consulting Services for the 7th year in a row. Yep, that’s Deloitte. The cyberspace is constantly evolving and so are the threats that it brings. That’s why our work is more meaningful (and exciting!) than ever. Always one step ahead, we predict risks and safeguard our clients through end-to-end solutions. More importantly, we help clients unlock new opportunities through safer and more secure systems and policies.  

 

Enough about us, let’s talk about you.  

 

You are someone with:

 

  • At least 6 years of experience in penetration testing and leading teams.
  • Knowledge across a variety of platforms, operating systems, networked environments, emerging security techniques, vulnerabilities and approaches.
  • Must have achieved OSCP, CRT, OSCE or equivalent  
  • Experience with Infrastructure, Web applications, APIs, Mobiles, Red Team, Wireless, Thick Client, Cloud and IoT testing. 
  • Experience leading and mentoring teams across multiple engagements. Can work on projects with limited support or independently.
  • Experience implementing and maintaining rigorous QA processes for reviewing deliverables
 
Why Deloitte?
 

At Deloitte, we focus our energy on interesting and impactful work. We’re always learning, innovating and setting the standard; making a positive difference to our clients and our society. We put coaching at the heart of what we do, helping our people grow their careers in any direction – whether it be up, moving into something new, or even moving across the world.   

 

We embrace diversity, equity and inclusion. We have a diverse collection of people from different backgrounds, with different experiences, gender identities, abilities and thinking styles. What binds us together is a shared commitment to value everyone’s perspective and to cultivate inclusion; so that our work environment is a safe space we can all belong.  

 

We value in-person connection with our clients and our colleagues. We offer several ways for you to work flexibly so that you can serve your clients, stay connected with your team, and manage your personal priorities.

 

We help you live and work well. To support your personal and professional life, we offer a range of perks and benefits, including retail discounts, wellbeing leave, paid volunteering days, twelve flexible working options, market-leading parental leave and return to work support package.  

 

Next Steps  

Sound like the sort of role for you? Apply now, we’d love to hear from you!  

#LI-Hybrid

 

 

 

By applying for this job, you’ll be assessed against the Deloitte Talent Standards. We’ve designed these standards so that you can grow in your career, and we can provide our clients with a consistent and exceptional Deloitte employee experience globally. The preferred candidate will be subject to background screening by Deloitte or by their external third-party provider.