Open to opportunities

Demeter Alexandru

@demeteralexandru

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IT & operations specialist transitioning into cybersecurity with strong Linux and systems skills.

Netherlands

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What I'm looking for

I am seeking cybersecurity or systems roles where I can apply hands-on Linux, cloud and security skills, work on incident prevention and response, and grow through challenging technical projects in collaborative teams.

I am an IT and operations specialist transitioning into cybersecurity, combining hands-on systems administration with operational efficiency. I have built and maintained home lab projects using Linux, Docker, AWS, Pi-hole and reverse engineering tools to develop practical security skills.

In operations roles I created playbooks, OS snapshot libraries, and automation scripts to improve reliability and reduce manual work, while managing inventory and integrations in SAP and Salesforce. I provide real-time technical support and coordinate fixes across engineering, field teams and sales.

I hold Security+, Fortinet Cybersecurity Associate and ISO 27001 certifications, and I continue to grow through HTB Academy and reverse engineering practice. I seek roles where I can apply troubleshooting instincts, secure systems, and scale reliable processes.

Experience

Work history, roles, and key accomplishments

Value Added Logistics Technician

Topcon Positioning Systems

Aug 2024 - Aug 2025 (1 year)

Performed bench and stress testing, firmware validation, and satellite connectivity configuration for client orders; created standardized OS snapshots and playbooks that reduced field setup time and improved reliability.

Hardware Testing Linux Salesforce Troubleshooting

Warehouse Assistant

Jumbo

Jan 2023 - Jan 2024 (1 year)

Managed daily fulfillment and SAP-driven shipping plans, performed cycle counts and inventory reconciliation, and documented root causes to reduce repeat stock discrepancies.

SAP Inventory Management Cycle Counts Logistics Coordination Carrier Coordination Data Entry & Compliance

PC Technician

SOLLTEC IT-Services

Jan 2022 - Jan 2023 (1 year)

Installed and configured hardware/software, maintained company website and deployed proprietary software, and performed diagnostics and maintenance to minimize downtime for clients.

Windows Linux Software Deployment Performance Tuning Technical Support

Mobile Sales Representative

Telekom

Jan 2017 - Jan 2018 (1 year)

Managed online listings and social campaigns, coordinated smartphone launch logistics and retail setups, and provided customer onboarding and contract support to meet monthly sales targets.

Retail Sales Customer Support Social Media Management Contract Processing

Education

Degrees, certifications, and relevant coursework

Open Institute of Technology (OPIT)

Bachelor of Science (Hons), Computer Science

Activities and societies: Home lab projects (Linux, Docker, Pi-hole, AWS), reverse engineering with Ghidra, HTB Academy security labs

Pursuing a Bachelor's Honours BSc (Hons) in Computer Science via fully remote study at OPIT, focusing on systems administration, networking, and security-related coursework.