Ronald McMillian
Chicago,IL
Summary
Network engineer with 10 years experience in implementing and designing LAN, WAN, and datacenter networks and leading network projects and workstreams for various national and international firms. Focused on network automation for reliability and consistency of configuration
Overview
11
11
years of professional experience
4
4
years of post-secondary education
Work History
Network Engineer
Simplex Investments
Chicago, Illinois
04.2023 - Current
- Implemented low latency trading circuits with FPGA termination
- Implemented L1 crosspoint switches.
- Employed L1 switching for effective low latency point-to-point and point-to-multipoint connectivity
- Streamlined switch and monitoring configuration through Ansible and Python
- Deployed and Updated Linux trading infrastructure
Network Architect
TradeZero
05.2021 - Current
- Designed, project managed, and implemented migration from undersized legacy environment to multi-datacenter, EVPN-VXLAN DCI environment with multicast
- Developed automated network development and deployment pipeline including full automated and manual testing capabilities, and automated configuration backups for a complex multi-vendor stack using Ansible, Bash, Python, Batfish, sFlow, and Containerlab.
- Led daily network operations and production network incidents.
- Developed internal tools for automated vendor form import and fabric troubleshooting.
- Deployed tools for network monitoring (sFlow) and documentation (Netbox)
- Responsible for onboarding vendor, client, and partner connectivity via BGP cross-connect, IPsec, or web.
Senior Network Engineer
BDO Digital
10.2020 - 05.2021
- Lead client facing engagements for network upgrades
- Core switch stack upgrade for a country club
- DMVPN to Velocloud SD-WAN migration for a food distributor
- Edge, Core, Access switch upgrades for 24-hour manufacturing company
- AWS IPsec redundant tunnel build for a behavioral healthcare center
Senior Network Engineer
Seed CX, Ltd
03.2019 - 06.2020
- Built and managed new Arista EVPN-VxLan implementation between two datacenters and headquarters location utilizing IAC for configuration management
- Increased user security by building and implementing containerized two factor authentication for Palo Alto GlobalProtect VPN utilizing docker and open source tools such as freeradius, and LinOTP
- Improved network testing by building dynamic lab environment duplicating production environment utilizing Arista ceos, docker, and KVM
- Streamlined client onboarding by writing automated tooling in bash to turn up client IPsec tunnels with strongSwan
- Managed Fortinet out-of-band network
- Managed AWS VPCs, security groups and route tables
Senior Consultant
West Monroe Partners
10.2018 - 03.2019
- Led the infrastructure workstream for an application migration to Azure
- Led a firewall migration for a major North American pharmaceutical company
- Designed WAN additions in prep for migration to Azure using redundant ExpressRoute circuits
- Made decisions on hardware purchases
- Managed vendor relations during purchasing process
- Managed infrastructure execution including planning and managing an MSP and execution vendors
- Managed vendor relations during purchasing process
- Planned the migration of 40+ remote sites and 4 datacenters from Cisco ASA to FTD
- Automated migration processes using Python
Experienced Consultant
West Monroe Partners
03.2015 - 10.2018
- Led a router and switch refresh project for a major North American pharmaceutical company
- Led a remote site network build for a Chicago based investment firm
- Executed a new WAN build/upgrade for a multinational retail chain
- Automated switch and router configurations for 50+ remote sites
- Executed network upgrades for 30+ remote sites
- Made a major migration "boring" Quote from CTO
- Interfaced directly with CIO and Senior VP of Infrastructure for design and status reports
- Managed hardware and circuit vendors
- Designed and implemented an office network prioritizing redundancy and minimal downtime
- Created and executed test plans for implementation verification
- Co-designed a new WAN network utilizing redundant DIA and cellular circuits, Fortinet firewalls, and 'dial-up' IPsec VPNs for 70+ remote sites
- Created an automated process for configuring 70+ store firewalls
- Executed 15+ installations of new store firewalls
Education
Bachelor of Science - Computer And Infomation Technology - Net Engr Tech
Purdue University
West Lafayette, IN 08.2010 - 12.2014
Skills
- Arista EOS
Cisco IOS/XE
WAN/LAN
VPN - SSL, IPsec, Wireguard
Wireshark
SD-WAN
Network Automation
Palo Alto Networks
LogicMonitor
Python
Bash
Ansible
Terraform
Git
Docker
VSCode
F5 Load balancing
Timeline
Network Engineer
Simplex Investments
04.2023 - Current
Network Architect
TradeZero
05.2021 - Current
Senior Network Engineer
BDO Digital
10.2020 - 05.2021
Senior Network Engineer
Seed CX, Ltd
03.2019 - 06.2020
Senior Consultant
West Monroe Partners
10.2018 - 03.2019
Experienced Consultant
West Monroe Partners
03.2015 - 10.2018
Bachelor of Science - Computer And Infomation Technology - Net Engr Tech
Purdue University
08.2010 - 12.2014