Oliur
Rahman.
Keeping networks safe and adversaries guessing — one alert at a time. Based in Sydney, I'm a Security Analyst who loves the cat-and-mouse game of cyber defence as much as the occasional CTF rabbit hole.
Who I Am
Hey, I'm Oliur — a Security Analyst based in Sydney, Australia who gets genuinely excited about things most people find terrifying: malware samples, suspicious log entries, and network anomalies at 2am.
By day I'm monitoring threats and making sure the bad guys don't get comfortable. By night I'm probably rooting a HTB machine or going down a rabbit hole that started with one weird packet capture.
I believe great security is about curiosity, patience, and knowing your enemy. Also coffee. Lots of coffee.
Academic & Professional Credentials
Built on formal education, industry certifications, and continuous hands-on learning.
Earned through completing machines, challenges, and learning paths on HackTheBox. Update the badge placeholders below with your real HTB badge image URLs.
Professional Background
- Collaborated with the Networking Team on daily administration of Cisco switches and routers.
- Created an internal wiki of common desktop and application fixes, cutting average ticket resolution time in half.
- Provided hands-on hardware support including diagnostics, repairs, and replacements of desktops, laptops, and printers.
- Set up and maintained workstations to ensure hardware and software functioned optimally for bank staff.
- Diagnosed and resolved end-user issues including OS problems, application errors, and connectivity issues — both remotely and in person.
Technical Stack
Let's Connect
Got a security challenge, a collaboration idea, or just want to geek out about cybersecurity? Reach out — I'd love to connect.