DevOps/Network Engineer · Promontory Interfinancial Network
Aug 2012–Present
- Built and maintained web application deployment pipelines using blue/green strategies with F5 LTM traffic switching for zero-downtime, any-time releases.
- Developed Ansible roles, playbooks, and modules for configuration management, orchestration, and ad-hoc automation.
- Built Jenkins/Ansible jobs for Cisco and Check Point config backups, log rotation, network validation, audit reporting, and VoIP traffic re-routing.
- Practiced Agile/Scrum/Kanban using Jira, Confluence, and Bitbucket.
- Automated F5 configuration and management via REST API and SSH using PHP, Python, and Ansible.
- Led a 3-person team through a sub-30-day proof of concept automating deployment of a production web application to AWS using Jenkins, Puppet, and CloudFormation.
- Built an internal operations dashboard (PHP/Bootstrap) for on-call status, incident/maintenance notifications, and system health.
- Migrated change auditing from Tripwire to UpGuard, automating node management and reporting via its REST API and Jira integration.
- Led cross-team projects, including scheduling, documentation, and coordinating maintenance windows.
- Performed routine maintenance and patching across Cisco, F5, Blue Coat, RSA, and Check Point infrastructure.
- Led a 3-datacenter network upgrade from 1GbE Cisco IOS to 10GbE Cisco Nexus with a top-of-rack redesign.
- Planned and led a headquarters and datacenter relocation, including infrastructure inventory, cabling, rack/stack, and vendor coordination.
- Planned and executed a WAN router upgrade across three datacenters.
- Monitored infrastructure using SolarWinds, ExtraHop, and Splunk.
- Represented the team in change management meetings and automated daily change-request status reporting.
- Handled day-to-day network administration, including firewall/ACL/proxy rules, connectivity troubleshooting, and switch configuration.
Enterprise Network Manager · BiTH Group, Full Circle, Digicon Corporation
Mar 2001–Aug 2012
- Contracted to the Baltimore City Mayor's Office of Information Technology.
- Promoted through Workstation Engineer, Server/Database Engineer, and WAN Engineer to Enterprise Network Manager.
- Managed all WAN/LAN network and datacenter operations, and led the network team's task planning, deadlines, and training.
- Defined enterprise network standards and security models; authored project proposals and advised executive management on upgrades and risk.
- Evaluated vendor technologies for feature fit, cost, and ROI/TCO.
- Installed and maintained 700+ Cisco switches, routers, and firewalls, including racking and cabling multi-vendor equipment (Dell, HP, Compaq, APC); led network installation projects for new buildings and renovations; automated monitoring and backups with SolarWinds Orion NPM, RANCID, and custom PHP/Perl scripts.
- Designed and deployed a Top Layer (Corero) IPS in a wrapped-firewall configuration protecting three ISP connections, two DMZs, and the internal network.
- Managed the Baltimore Police Department's CCTV camera network, including fiber/wireless installs and interagency firewalled access.
- Designed network connectivity for Command Centers at Baltimore's first Grand Prix, supporting Police, Fire, and multiple city agencies.
- Provided emergency network response (cellular/point-to-point wireless failover) and designed a citywide Cisco VoIP solution with SRST redundancy, migrating from PRI to SIP trunking on standardized 3560X/3750X switches.
- Planned a core upgrade from Cisco 6509E to Nexus 7010, a multi-datacenter consolidation, a 10-gigabit backbone, and a new fiber ring bringing all fire houses to gigabit PoE.
- Designed a redundant DMVPN solution (dual Cisco 7206VXR hubs, multi-ISP) with IPsec/GRE/EIGRP spokes, migrating client VPN access from Check Point SecureRemote to L2TP.
- Deployed an enterprise wireless solution with redundant Cisco controllers, a guest anchor controller, and RADIUS/Active Directory authentication.
- Upgraded the network core from Cisco 6506 to 6509E, converting CatOS to IOS and consolidating outside-agency equipment onto a single chassis.
- Performed Check Point firewall upgrades and maintained a clustered high-availability Check Point deployment.
- Converted the network from Layer 2 to Layer 3 using OSPF and EIGRP.
- Decommissioned 100+ media converters in favor of SFPs/GBICs and migrated IP addressing from static to DHCP.
- Administered Linux systems (Ubuntu, Red Hat, FreeBSD, NetBSD) running TACACS+, NTP, TFTP, Apache, and Mailman.
- Designed a VMware ESX/SAN environment consolidating 50+ physical servers.
- Built "COB-MGMT", an in-house remote management tool (VBScript, then Perl, then a C# Windows service) with a custom ASP interface and SQL backend, deployed via Patchlink to 5,000+ workstations and several hundred servers.
- Wrote a C# service to monitor Active Directory group changes and alert administrators via email.
- Built a custom ASP knowledge base for PC technicians, later migrated to phpBB.
- Led enterprise-wide workstation, server, and network assessments; automated administration across thousands of endpoints; managed file, print, application, Citrix, database, and SAN infrastructure (EMC/HP/3Par via Brocade, tape backup via Backup Exec); and built the Mayor's Office intranet for IT change control and account requests.
- Assisted with Exchange 2003 design, implementation, and Outlook profile migrations.
- Helped design and deploy Windows 2000 Active Directory for 8,000+ users and 5,000 workstations, consolidating roughly twenty legacy NT domains into one.
Network Administrator · Invensys-Pritchett
Aug 2000–Mar 2001
- Administered day-to-day server and workstation operations, including the Windows NT 4.0 domain.
- Wrote custom login scripts for automated drive mapping and application settings.
- Managed backups (Veritas Backup Exec) and antivirus (Norton Corporate Edition).
- Built a custom inventory management system in Access 2000.
