First listed on: 02 July 2024

Cyber Defence Senior Engineer – Operational Security Services


Why work for Cenitex 

Cenitex supports a modern, agile and productive public sector, and is driven by the Government’s commitment to a digital Victoria and better outcomes for the community. Cenitex’s purpose is to be the Victorian Government’s trusted IT Partner. We know uniting the best technology and the brightest individuals is the key to our success and we know it is our people who bring our values to life and contribute to the success of our customers, organisation and their colleagues 

Our People promise is that we treat our employees as people, not workers. We provide an exceptional life experience, and we focus on the feelings, not just the features that match employee needs. We do this by providing deeper connections, having a shared purpose, an inclusive environment, providing interesting work and allowing flexibility. 

Culture and Benefits 

Cenitex provides employees with essential support through all that life presents and want our employees to bring their whole selves to work. We encourage and support professional development and offer a flexible working environment with a focus on employee work-life balance. Here’s a taste of what’s on offer:  

  • Flexibility - spans where, when and how we work best  
  • Hybrid working - offers employees to work remotely 3 days a week, however it all starts with a conversation and from a place of flexibility 
  • Employee discounts - up to 10% across 500 retailers 
  • Automatic salary increases  
  • Centrally located - state-of-the-art offices and end of trip facilities in the heart of CBD 
  • Inclusive parental and carers leave entitlements.

We are proudly a WORK180 Endorsed Employer for all women and strongly encourage women to apply to the role. 

About the role

As a Cyber Defence Senior Engineer – Operational Security Services, you will provide strategic and day-to-day operational security and project support to customers and internal staff in conjunction with our vendors and partners. This senior role will see you leading the planning, preparation, and implementation of complex technical activities and driving strategic initiatives in the cyber defence landscape. Your responsibilities will include, but are not limited to: 

  • Undertake and oversee complex technical investigations to resolve issues with security controls, ensuring root cause analysis and remediation.
  • Offer in-depth expertise and advise on security controls and processes to the team and stakeholders, ensuring the effective delivery of security services to customers.
  • Manage and provide strategic direction for security solutions including Proxy, Email Gateway, IPS & IDS, DLP, CASB, WAF, NDR, PAM, SIEM, NAC, MFA, PKI, Multi-cloud security controls, AV, and EDR.
  • Manage Elastic stack for SIEM purposes, developing and optimising SIEM rules, dashboards, and alerts to identify and respond to security incidents; integrate various data sources and security tools with elastic stack to centralise log collection and analysis; monitor and fine-tune SIEM performance to ensure efficient and effective operations.
  • Create, implement, and manage comprehensive threat analysis, use case creations and incident response plans.
  • Apply new concepts and ideas to achieve innovative, efficient, and effective delivery of specialist engineering operational and project services.
  • Utilise advanced threat detection and response skills to protect the organisation's assets.
  • Assist in the definition, development, and implementation of robust cyber security policies and standards.
  • Design, develop, and maintain automation scripts and tools to improve the efficiency and effectiveness of security operations, integrating security tools and system to automate threat detection, response, and remediation workflows, while collaborating with security analysts, incident responders, and IT teams to identify and implement automation opportunities.

Act as a Senior engineer within the team, fostering knowledge sharing, professional growth, and development among team members.

To be successful in the role you will have: 

  • Proven experience working in a senior IT Security role within a complex technology environment, with a strong understanding of shared services environments, particularly in delivering IT Security Services.
  • Experience and knowledge of various Australian standards such as ISM, Essential 8, ASD & VPDSF, and familiarity with industry frameworks like MITRE ATT&CK, D3fend, and the Cyber Kill Chain.
  • Strong technical knowledge and Proven expertise in administering and optimising security systems, including Proxy, Email Gateway, IPS & IDS, DLP, CASB, WAF, NDR, PAM, SIEM, NAC, MFA, PKI, Multi-cloud security controls, AV, EDR, and a deep understanding of Windows/Unix and other distributed systems and their security requirements.
  • Experience in managing SIEM, preferably Elastic SIEM, along with the ability to develop and optimise SIEM rules, dashboards, and alerts and expertise in integrating diverse data sources and security tools to create a centralised log collection and analysis system, coupled with consistent monitoring, and tuning of SIEM performance, will ensure the efficiency and effectiveness in security operations.
  • Extensive experience in managing large network environments, with detailed knowledge of operating systems, networking, and systems protocols.
  • Demonstrated experience and knowledge of cloud platforms such as AWS, Azure, GCP, and OCI.
  • Well-developed written and verbal communication skills, with the ability to convey complex technical information to various stakeholders.
  • Detailed understanding of IT operating models and service frameworks, including the IT Infrastructure Library (ITIL).
  • Proficiency in scripting languages such as Python, PowerShell or Similar

The team is supportive and works collaboratively to contribute to improvements and ensure issues are resolved within the security domain. 

If you don't match the experience above 100%, that’s ok! Please still put your application through. If this is not the role for you, please create a profile to join our talent community using 

For more information about the role and the numerous employee benefits, check out the Position Description and Life at Cenitex document by clicking the “Apply Now” button.  

Watch some great videos of our staff on our careers page to get a better idea of what it could be like to be a part of the Cenitex team.

Our Commitment to Diversity  

Cenitex is proud of its diverse group of employees with a unique mix of skills and talent. We believe diversity and inclusion enhances our workforce capability and culture in delivering outstanding technology services and solutions for our customers. We embrace differences in gender, age, ethnicity, race, cultural background, disability, religion, and sexual orientation  

Cenitex is an equal opportunity employer. We highly encourage applicants from diverse backgrounds, abilities, Aboriginal and Torres Strait Islander people to apply. 

To apply 

Cenitex is a fast-moving organisation with lots to deliver - so we may not always wait until the job ad expires before reviewing applicants. As a result, you should submit your application as soon as possible. 

To apply, simply complete an application through our LiveHire system.  

Note: applicants are not required to provide a separate document addressing the Key Selection Criteria. You may also be required to complete a video introduction as part of the recruitment process.  

We’re committed to being inclusive when we hire people and understand that adjustments are sometimes needed. If you require adjustments to complete your application, assessment task or interview it is important you let us know so we can support you. You will not be disadvantaged if you request adjustments. We want all applicants to perform at their best and compete with other applicants equally. 

For any further questions or support contact

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