Senior Penetration Tester

2 weeks ago

Council of the City of Ryde, Australia Singtel Full time
Singtel The Singtel Group, Asia's leading communications group provides a diverse range of services including fixed, mobile, data, internet, TV, infocomms technology (ICT) and digital solutions.

View company page

At Optus, we have an ambitious goal to be Australia's most loved everyday brand.

Optus' Cybersecurity division is a team of highly motivated professionals who seek to be on the forefront of security trends and technologies. As part of this growing team, you will play a crucial role in driving the business' security strategy across a diverse range of systems and products within the Optus and Singtel groups. Our teams work with a broad range of technologies and business partners, with exposure to international trends, partners and security tools.

Your day in the life of a Senior Penetration Tester at Optus

  • Undertaking penetration tests of Optus' web applications, mobile applications, infrastructure, networks, Wi-Fi, and cloud applications, using a combination of manual and automated tools.
  • Identifying security weaknesses and exploring impacts through exploitation.
  • Documentation and presentation of results and providing effective remediation recommendations.
  • Assist in security issue response in coordination with other teams across the company or externally, as required.
  • Maintaining up-to-date industry knowledge of advancements in hardware and software technologies and their potential security implications.
  • Develop solutions and testing approaches to problems for situations for which information is incomplete or for which no precedent exists.
  • Problem-solving for issues and situations which arise prior to and as a result of penetration tests.
  • Enforce relevant Information Security policies, standards, and operating procedures as required.
  • Consultation with teams both internal and external to Cybersecurity and management of relevant organisational business partners.
  • Consult with Security teams and stakeholders around penetration testing projects
  • Assist in the scheduling and prioritization of penetration tests and any issues to be remediated as a result of these tests.

Your skills to pay the bills

  • CREST, OSCP, or equivalent certification.
  • Qualifications in Computer Science, Information Technology or equivalent (or compensating experience).
  • 4+ years in penetration testing across several of the following disciplines: web applications, mobile applications, infrastructure, networks, Wi-Fi, and cloud security.
  • Proven sophisticated knowledge of penetration testing. A solid understanding of information security governance, risk, and compliance.
  • Versatile knowledge of web applications; standard internet protocols, and web technologies.
  • Experience with common application security threats, such as SQL injection, Cross Site scripting etc.
  • Sophisticated understanding and experience with tools such as Nessus, nmap, Microfocus Fortify Static Code Analyser, ZAP, Metasploit, Burp Suite, etc.
  • Advanced knowledge of the OWASP and MITRE ATT&CK frameworks.
  • Advanced knowledge of obfuscation and evasion techniques.
  • Advanced knowledge of information security principles and practices, understanding of security protocols and defence in depth.
  • Demonstrable ability to conduct research into security issues and products as required.
  • Demonstrated abilities to present findings to technical and non-technical team and executives.
  • Excellent written and verbal communication skills, including technical writing and organizational skills; must be comfortable working in a fast-paced and evolving environment.
  • Experience with telco technologies (optional)

Perks we love at Optus

  • Competitive salary and performance incentives
  • Discounts to Optus products and services, and to over 400 retailers Australia-wide
  • Training, mentoring and development opportunities (ask us about OptusU)
  • Up to five days of Volunteer Leave per year
  • A "connected" day for you to use to connect to something you are passionate about
  • Hybrid ways of working
  • Vibrant campus life, variety of facilities including restaurants, cafes, gymnasium, GP, and post office
  • Sydney Campus; 20mins from CBD via our Optus bus. Our 999 Metro Connect service connecting you to and from Macquarie University Metro Station to Optus Campus every 6-8 minutes, morning and afternoon

Keen to see what it's really like to work at Optus? Search #OptusLife on LinkedIn to go behind the scenes

At Optus, we are strengthened by others and that means valuing diversity and saying 'yes' to embracing individual differences. We are committed to ensuring that our application process provides an equal employment opportunity to all job seekers, including individuals from diverse gender, cultural and linguistic backgrounds, individuals with a disability, individuals identifying as being part of the LGBTQIA+ community, individuals who may have served in the armed forces or who identify as Aboriginal and/or Torres Strait Islander. If you require any adjustments or accessibility support to participate fairly and equitably in the recruitment process, please email along with your preferred method of contact and we will be in touch.

For more information on Diversity, Inclusion & Belonging at Optus, please visit

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