Capabilities
Seven areas of practice, each backed by real work, study or a project I built. Pick one, or page through with Next.
Security Operations & Threat Management
Spotting, triaging and containing threats before they become incidents.
View → 02Ethical Hacking
Certified Ethical Hacker. Finding the gaps before an attacker does.
View → 03Digital Forensics
Built an Android forensics tool with SHA-512 evidence integrity.
View → 04Network Administration
TCP/IP, DNS, LAN/WAN and VPN, from an ISP to a 1,200-user plant.
View → 05Linux, Systems & Cloud Security
Ubuntu, Docker, Python and AWS cloud security fundamentals.
View → 06End-User Support & IT Operations
Tickets, hardware, onboarding, inventory and vendor repairs at scale.
View → 07IT Project Management
Coordinating upgrades, suppliers and acquisitions to plan.
View → 08Profile & Experience
Career summary, education and certifications on one page.
View → ContactLet's talk security.
Hiring for a SOC, network administration or security-focused IT role in the GTA? I'd be glad to hear about it.
Get in touch →
Capability 01Security Operations & Threat Management
Trained to identify threats, weigh the risk, and act in the right order when something goes wrong.
What I bring
- Threat identification and risk assessment across networks, endpoints and users.
- Incident triage by urgency and business impact, with clear escalation paths.
- A monitoring habit built on live networks, so unusual activity stands out.
- Security awareness coaching that end users actually follow.
Where I've done it
- System and Cybersecurity Specialist, Auxcura Inc (current).
- Postgraduate program in Cybersecurity and Threat Management, Seneca Polytechnic.
- Owned help-desk incidents to resolution for 1,200+ users at MAS Active.
Core concepts
Capability 02Ethical Hacking & Vulnerability Assessment
Thinking like an attacker so the organisation finds its weak points first.
What I bring
- The CEH attack methodology: reconnaissance, scanning, enumeration, exploitation and covering tracks, applied defensively.
- Spotting misconfigurations and exposed services on networks and endpoints.
- Writing findings in plain language with a clear fix for each.
Where I've done it
- Certified Ethical Hacker (CEH), EC-Council.
- BEng in Computer Network and Security, Staffordshire University.
- Built and tested tooling on Kali Linux for my final-year project.
Tools & methods
Capability 03Digital Forensics
Collecting evidence so it holds up, and reading it to find what happened.
Forensic Raptor
- Python command-line tool that extracts a full Android non-volatile memory image over ADB.
- Searches the image for e-commerce app data with custom regex patterns.
- Verifies evidence integrity with SHA-512 checksums and writes case-based reports.
- Extracts device properties, contact lists and battery health.
Training
- C5W-100 Introduction to Digital Forensics.
- Final-year engineering project, Staffordshire University, 2021.
Tools
Capability 04Network Administration & Support
Keeping people connected, and finding the fault fast when they aren't.
What I bring
- Troubleshooting connectivity across TCP/IP, DNS, LAN and WAN.
- Network performance monitoring to hold service levels.
- Coordinating network infrastructure upgrade projects.
- Documenting configurations and setup so the next engineer can follow.
Where I've done it
- Network Support Engineer (L1), Exetel, 2021–2022.
- IT Support Specialist (L1), MAS Active Linea Intimo, 2022–2023.
- WireGuard VPN and Pi-hole DNS in my own home lab.
Protocols & tools
Capability 05Linux, Systems & Cloud Security
I run my own server at home, so patching, hardening and fixing are daily habits.
What I bring
- Building and maintaining an Ubuntu server with containerised services in Docker.
- Network-wide DNS filtering with Pi-hole and secure remote access over WireGuard.
- Python scripting for automation and analysis.
- Cloud security fundamentals on AWS: shared responsibility, identity and access, data protection.
Platforms
Capability 06End-User Support & IT Operations
Calm, hands-on support for a busy floor, from the first ticket to the vendor repair.
What I bring
- On-site hardware and software troubleshooting, upgrades and installs.
- Help-desk tickets prioritised by urgency and impact, owned through to resolution.
- Onboarding new users with hands-on guidance and demonstrations.
- Inventory, spare parts and supplier management so equipment is ready when needed.
- Coordinating vendors and service providers on hardware repairs.
Tools & practices
Capability 07IT Project Management
Turning technical changes into plans that land on time, with suppliers and users on board.
What I bring
- Scoping, scheduling and tracking IT and infrastructure work.
- Coordinating network infrastructure upgrade projects in a live plant.
- Managing suppliers and acquisitions within budget and timelines.
- Clear status communication with technical and non-technical stakeholders.
Methods
Help desk to firewall.
IT support and network professional with hands-on experience supporting a 1,200-user manufacturing plant and an ISP's customers, now focused on cybersecurity. BEng in Computer Network and Security, two postgraduate credentials from Seneca Polytechnic, and Certified Ethical Hacker. Dependable, practical, and quick to own a problem.
Experience
- System and Cybersecurity SpecialistAuxcura Inc
Current - IT Support Specialist (L1)MAS Active Linea Intimo, Colombo
Mar 2022 – Jul 2023 - Network Support Engineer (L1)Exetel, Colombo
Aug 2021 – Jan 2022
Education & certifications
- PG, Cybersecurity & Threat ManagementSeneca Polytechnic
2025 - PG, IT Project ManagementSeneca Polytechnic
2024 - BEng, Computer Network & SecurityStaffordshire University
2021 - CEH · AWS Cloud Security Foundations · C5W-100
Academic records and certifications are issued under my legal name, Yuvin Premaratne.
ContactLet's talk security.
Hiring for a SOC, network administration or security-focused IT role in the GTA? I'd be glad to hear about it.