Background & Experience

About.

Hi! I'm Kabir, a senior security engineer with a deep passion for highly technical pentesting and security research. I spent my time at Atlassian applying Application Security concepts to modern technologies including LLMs/AI, networks, AWS/GCP/Azure cloud platforms, SaaS integrations and in-house products and tooling. Now I work at Transgrid, securing Australia's largest electricity network and its OT environment. I play CTFs on the global stage with Emu Exploit, HashMob, and TheHackersCrew and produce music in my spare time.

Experience

Transgrid

current
Senior Cyber Security Testing Intelligence Engineer
Aug 2025 – Present
Sydney, NSW
  • Securing Australia's largest electricity network and its OT environment.
  • Winner of the 2025 Dragos, Inc. CTF (OT/ICS Security).

Atlassian

Security Engineer
Apr 2025 – Aug 2025
Sydney, NSW
  • Conducted 250+ security reviews, supporting software and ML engineers to make better security decisions.
  • Delivered 15+ security threat models, improving understanding of information risk in platforms including Forge and Rovo (AI/LLM).
  • Found, reported and aided patching for 10+ security vulnerabilities external to threat models.
  • Patched 70+ security vulnerabilities.

Atlassian

Graduate Security Engineer
Feb 2024 – Apr 2025
Sydney, NSW
  • Created the centralised source of truth for ecosystem platform security, cementing myself as the SME.
  • Ran a tabletop exercise to evaluate the success of our ecosystem security uplift project.
  • Developed an internal graph based AI/LLM code scanner tool to save time diagnosing Snyk Code results.
  • Shadowed Detection and Response team, learning how to make Splunk queries and action detection tickets.
  • Shadowed Corporate Security team and worked with them to build corporate security controls for AI/LLM usage and employee device management.
  • Participated in annual security bug bash (high paced pentesting), squashing 10+ bugs.

Atlassian

Security Engineering Intern
Nov 2022 – Feb 2024
Sydney, NSW
  • Co-created the LLM security initiative at Atlassian.
  • Provided direct LLM security advice to the CISO to speak on a panel.
  • Conducted 13 security investigations (small glassbox tests) on suspicious services to find vulnerabilities.
  • Delivered Damn Vulnerable Forge App, a project to showcase developer security footguns on the Atlassian Forge platform.

Macquarie University

Cyber Security Intern
Apr 2022 – Nov 2022
Sydney, NSW
  • Network penetration testing and firewall rule validation.
  • Active directory threat mapping and patching with Bloodhound.
  • Writing automated Python scripts to detect vulnerabilities across the network.
  • Designing challenges and infrastructure for Hack Mac CTF.

Westpac

Operations Infrastructure Work Experience
Jan 2018
Sydney, NSW
  • Security group policy review (password renewal, access and permission management).
  • Automating repetitive active directory tasks with PowerShell.
  • Troubleshooting physical server faults in a data center.

Westpac

Information Security Analyst Work Experience
Dec 2017
Greater Sydney Area
  • Phishing detection, prevention, reporting and response.
  • Penetration testing against internal networks and devices.
  • Code review and bug fixing.

Education

Macquarie University

Bachelor of Cyber Security
Feb 2021 – Nov 2023
  • GPA: 3.917 / 4
  • WAM: 82.958
  • Award: 2023 Merit List
  • Award: Highest Achiever - Digital Forensics
  • Award: Highest Achiever - Systems Programming