I am a Systems Administrator focused on infrastructure and cybersecurity. I work with Windows environments, networking, and virtualization, and I manage security solutions (EDR/XDR) for organizations and small to medium-sized businesses.
I am currently studying Cybersecurity and continuously expanding my knowledge through certifications (ISC2, Microsoft, Fortinet).
Support · Infrastructure · Security
Servers · VMs · Networks
EDR/XDR · Hardening · IR basics
ISC2 · Microsoft · Fortinet
— Ulises Woloszyn
What I do
I administer and optimize IT infrastructure, including Windows Server, virtualization, networking, and escalated support. I focus on improving availability, performance, and operational efficiency.
Security mindset
I apply security best practices such as system hardening, access control management, EDR/XDR administration, basic incident response, and attack surface reduction.
How I work
I work with clear documentation, impact-based prioritization, and straightforward communication with both users and technical teams. I aim to leave environments measurable, monitored, and maintainable.
If you’d like to contact me regarding opportunities, freelance projects, or technical inquiries, feel free to fill out the form or reach out to me on LinkedIn. I typically respond within 24 hours.
Location: Buenos Aires, Argentina (Hybrid/Remote)
Email: uli.wolo@gmail.com
LinkedIn
GitHub
Availability: Full-time / Freelance
Extras: EU Citizen