Hector Contrerassolis
Data Center And Telecommunications Engineer
Chicago,IL
Summary
Results-driven Telecommunications & Network Specialist with over 12 years of experience in network infrastructure, data center operations, and structured cabling. Proven expertise in installing, maintaining, and troubleshooting complex networking systems, including fiber optics and telecommunications. Adept at leading installation projects, optimizing network performance, and ensuring 24/7 operational continuity. Currently pursuing a Bachelor's in Networking and Cybersecurity (Expected October 2025), seeking opportunities in network engineering, cybersecurity, or IT infrastructure roles.
Overview
13
13
years of professional experience
3
3
years of post-secondary education
5
5
Certifications
Work History
Senior Data Center Engineer
Ascension Technologies
01.2024 - Current
- Manage and maintain 12+ data center locations, ensuring high availability and optimal performance
- Utilized SolarWinds for network and server monitoring, ensuring proactive detection of performance issues.
- Managed racking, stacking, and cabling of enterprise servers, switches, and storage devices in data center environments.
- Installed, configured, and maintained Dell PowerEdge and HP ProLiant servers, ensuring optimal performance and uptime.
- Managed EcoStruxure for real-time data center infrastructure monitoring, including power and cooling systems.
Data Center Operations Specialist
Equinix
12.2022 - 01.2024
- Performed break/fix and circuit installations for over 10,000 customers in a global data center
- Integrated fiber-optic and copper cabling into existing network infrastructures
- Used ServiceNow for IT service management, handling incident tickets, escalations, and problem resolution.
- Installed, and managed Cisco Catalyst, Extreme Networks, and HP Aruba switches for enterprise network infrastructure.
Telecommunications Specialist
United States Marine Corps
08.2020 - 11.2022
- Installed and maintained base-wide telecommunications and network components
- Spliced, terminated, and tested fiber and copper cables for mission-critical communications
- Troubleshot switched, multiplexed, and media-converted circuits, ensuring 99.9% uptime
- Conducted preventative maintenance, reducing unexpected failures by 40%
Network Infrastructure Technician
Tekworks
06.2019 - 06.2020
- Led private data center build-outs and structured cabling projects
- Installed and managed network racks, cabinets, and structured cabling systems
- Optimized network performance by reviewing and implementing design improvements
- Labeled and documented cabling infrastructure, reducing troubleshooting time by 50%
Lead Network Technician
United States Marine Corps
04.2017 - 05.2019
- Supervised a team of IT professionals managing LAN/WAN networks
- Ensured 100% operational status for headquarters' network infrastructure
- Monitored security procedures and implemented network hardening measures
- Performed cable tracing, patching, and infrastructure troubleshooting
Network Switching Systems Operator/Infrastructure
United States Marine Corps
10.2014 - 03.2017
- Installed and maintained IDF/MDF network infrastructure for mission-critical operations
- Configured network devices to meet performance and security requirements
- Managed relocation of users, reducing network downtime during transitions by 60%
Telecommunications Specialist / Cable Splicer
United States Marine Corps
10.2011 - 10.2014
- Installed, tested, and maintained fiber optic and copper cabling for data and voice systems
- Performed LAN/WAN administration, troubleshooting, and configuration
- Verified system continuity, ensuring 100% mission readiness
Education
Bachelor of Applied Science - Networking & Cybersecurity
DeVry University
Lisle, IL 08.2024 - Current
Associate of Applied Science - Networking & Cybersecurity
DeVry University
Lisle, IL 01.2022 - 01.2024
Skills
- Network Infrastructure & Operations: LAN/WAN, TCP/IP, structured cabling, network monitoring
- Data Center Management: Rack & stack, power distribution, cooling systems, break/fix
- Fiber Optics & Cabling: Splicing, terminating, OTDR testing, VFL, power meters
- Network Security & Troubleshooting: Incident response, firewall configuration, IDS/IPS, SIEM tools
- Systems Administration: Hardware diagnostics, server maintenance, ticketing systems
Certification
CompTIA A+
Key Strengths
- Critical Thinking & Problem-Solving
- Time Management & Prioritization
- Team Leadership & Mentorship
- Attention to Detail
- Adaptability & Continuous Learning
Timeline
Bachelor of Applied Science - Networking & Cybersecurity
DeVry University
08.2024 - Current
Senior Data Center Engineer
Ascension Technologies
01.2024 - Current
Data Center Operations Specialist
Equinix
12.2022 - 01.2024
Associate of Applied Science - Networking & Cybersecurity
DeVry University
01.2022 - 01.2024
Telecommunications Specialist
United States Marine Corps
08.2020 - 11.2022
Network Infrastructure Technician
Tekworks
06.2019 - 06.2020
Lead Network Technician
United States Marine Corps
04.2017 - 05.2019
Network Switching Systems Operator/Infrastructure
United States Marine Corps
10.2014 - 03.2017
Telecommunications Specialist / Cable Splicer
United States Marine Corps
10.2011 - 10.2014
Similar Profiles
DAMODAR NAGUNOORIDAMODAR NAGUNOORI
Process and Technology Manager at ASCENSION TechnologiesProcess and Technology Manager at ASCENSION Technologies
William KrutkeWilliam Krutke
Technical Solution Architect at Ascension TechnologiesTechnical Solution Architect at Ascension Technologies
Derek SummittDerek Summitt
Lead Technical Architect at Ascension TechnologiesLead Technical Architect at Ascension Technologies
Benjamin GroeperBenjamin Groeper
Account Manager at EJOT ATF, LPAccount Manager at EJOT ATF, LP
Teige PayneTeige Payne
Student Fellow at Illinois Institute of TechnologyStudent Fellow at Illinois Institute of Technology