Thomas Thomas

Network Engineer with 18 years of experience designing, securing, and supporting enterprise LAN/WAN, datacenter, cloud, and SD-WAN environments. Expert in Cisco and Meraki architectures, firewall administration, routing/switching, wireless design, and large-scale network modernization. Proven ability to lead multi-site refreshes, standardize infrastructure, eliminate single points of failure, and improve reliability across healthcare, manufacturing, banking, and logistics environments.

Strong documentation, cross-team collaboration, and incident/problem-management skills.

Senior Network Engineer - Republic Bank of Chicago

(2025-12 - 2026-05)

• Supports daily LAN/WAN operations, monitoring Cisco switching, FortiGate SD-WAN, and Aruba wireless performance.
• Configures and maintains Fortigate firewalls, Cisco switches, and Aruba Wi-Fi systems.
• Assists with SD-WAN, switching, and wireless infrastructure design and deployment.
• Collaborates with teams to build solutions for new and evolving technologies.
• Monitors Azure and datacenter environments for outages and performance degradation.
• Executes routine voice/data network changes and resolves escalated hardware/software incidents.

Network Engineer II - Shorr Packaging Corp.

(2025-02 - 2025-11)

• Designs and deploys scalable enterprise network architectures leveraging Cisco switching, Meraki SD-WAN
• Strengthens security with protocols, audits, vulnerability assessments, compliance enforcement, and incident response.
• Supports operations through clear reporting, cross-team collaboration, vendor coordination, and mentoring junior engineers.
• Assesses new technologies and vendor proposals to drive improvements and shape long-term network strategy.

Senior Network Engineer - MW Industries

(2021-11 - 2024-12)

• Manage LAN/WAN (wired/wireless) across data centers and nationwide sites, providing Tier 2/3 support for routers, Cisco switches, Meraki firewalls, and SD-WAN connectivity.
• Maintain documentation, ensure reliable system and application connectivity, and implement security mitigation and policy controls.
• Collaborate with Server and User Support teams while troubleshooting access points, switches, and firewalls to ensure full network compatibility and interoperability.

Network Engineer/Tech Engineering Analyst - Amita Health

(2018-05 - 2021-11)

• Responsible for maintaining network infrastructure for Amita Health NW region.
• Manage router and switch infrastructure at the health care facilities in the region including acute-care, immediate care clinics and physician office settings.
• Utilize network monitoring tools to analyze network traffic and ensure optimal network performance.
• Support enterprise project activities by ensuring that optimal network connectivity, functionality and performance is available and maintained.

Network Analyst/Admin - Consultant - Regional Transportation Authority (RTA), Chicago, IL - Chicago, IL

(2017-10 - 2018-05)

• Optimizes critical network systems, strengthens security (Cisco WSA/IronPort), and oversees timely patching to reduce vulnerabilities.
• Supports Sysadmin and Help Desk with complex troubleshooting across network hardware, software, and servers while maintaining accurate licensing.
• Evaluates emerging technologies and recommends improvements to enhance overall network capabilities.

Network Engineer/Sr. Network Engineer - Network Architecture, Presence Health, Chicago, IL - Chicago, IL

(2007-05 - 2017-08)

• Maintain Cisco WAN/LAN/WLAN/VoIP infrastructure across 13 hospitals and 100+ care sites, managing routers and switches for acute-care, clinics, and physician offices.
• Monitor network performance, address security threats, and perform OS upgrades with minimal downtime to protect patient-care operations.
• Collaborate with vendors and IS teams on network enhancements, and maintain accurate, up-to-date network documentation.

Senior Field Services Specialist - Resurrection Healthcare, Chicago, IL - Chicago, IL

(2001-12 - 2007-05)

• Delivered Level II PC support across multiple healthcare facilities and led a 500+ device hardware refresh to the Windows XP platform.
• Handled server administration tasks including printer setup, backup configuration, and shared resource management, while supporting Active Directory migrations across hospitals.
• Trained IS staff on LAN support and provided end-user training on desktop applications.

Network Trainee - Aquarius Institute of Computer Science, Des Plaines, IL - Des Plaines, IL

(2001-02 - 2001-10)

Installed and configured Windows 2000 servers and clients, designed TCP/IP networks with DHCP/DNS/WINS, built secure Active Directory environments, and migrated legacy Windows NT domains to Windows 2000.

Faculty - Dept. of Computer Science, Mahatma Gandhi University, Kerala, India - Kerala, India

(1999-07 - 1999-12)

Taught masters-level courses on computer organization, software engineering, principles of management and DBMS, mentored students in course work and final projects, evaluated thesis level course work, served on examination committee.

Masters in Computer Applications - Computer Science (Major), Business Management (Minor) - University of Madras (1998-05)

B.Sc. - Mathematics - Mahatma Gandhi University, Kerala, India (1994-05)