• Implemented and managed production, test, and development environments for firm’s core financial and practice management system.• Developed innovative solutions and features using SQL, Python, and XAML.• Ensured seamless integration of core financial system with other business systems. • Communicated with stakeholders and developed custom stored procedures for billing, invoicing, and reporting to satisfy client requirements and maximize visibility of data trends. • Improved performance of SQL databases by identifying and removing resource bottlenecks, optimizing slow queries, and keeping SQL Server environment up to date.

• Architected enterprise IT infrastructure of one of Wisconsin’s top law firms.• Engineered LAN, WAN, SAN, and wireless networks primarily using Cisco devices.• Configured Layer 2 technologies including Ethernet, 802.1q, EtherChannel, STP/RSTP/MST, BPDU, PPOE, VTP, CDP, SPAN, NAC.• Implemented Layer 3 technologies including IPv4, IPv6, OSPF, BGP, HSRP, VoIP, SIP, QoS/CoS, NAT, ACL, SNMP.• Installed and monitored wireless infrastructure using Cisco WLAN controllers, autonomous/lightweight APs, Ubiquiti products.• Designed and engineered data centers and managed data center operations.• Installed and managed Cisco ASA/Firepower, Checkpoint NG, Sonicwall firewalls, IPS/IDS, DLP, Cisco Umbrella.• Configured AnyConnect VPN/Policy, IPSec VPN, SSL VPN, GRE, SSL/PKI infrastructure.• Built best practices security infrastructure with a least privilege and defense-in-depth approach. Performed regular penetration testing and mitigated vulnerabilities using Nessus. • Implemented network and systems monitoring, SIEM, IPAM, and configuration management. Performed traffic and packet analysis with tcpdump, Wireshark, NetFlow.• Managed Cisco UC, collaboration, and voice infrastructure. Performed troubleshooting of call routing, dial plans, call quality, VoIP, SIP, RTSP, RSRT. Performed major version upgrades while maintaining uptime.• Administered systems infrastructure including Windows and Linux Application Servers, IIS, Apache LAMP, Microsoft Exchange, SQL Severs, VMware vSphere. Automated tasks using PowerShell, Python, Bash.• Managed Active Directory services including DNS, DHCP, Certificate Services, SCCM, WSUS, GPO, Remote Access.• Configured backup and DR using Veeam and Symantec BackupExec.• Planned, operated, and deployed legal industry technologies including Elite 3E, iManage, IntApp, Relativity.• Created documentation of network and systems infrastructure using Visio, Word, and Excel. • Communicated effectively with stakeholders, team members, and vendors.

• Managed the enterprise network of a leading provider of SaaS collaboration solutions for the construction industry.• Designed and implemented data center, back office, and call center network and security infrastructure. Installed and configured F5 load balancers, Cisco routers, Juniper switches, Cisco firewalls, Aruba wireless, Cisco UCS, and NetApp SAN.• Managed VoIP phone system using Avaya technologies and products.• Evaluated and implemented the required expansion of network, storage, and systems as the company grew from its beginnings with twelve employees to a publicly listed company.

• Architected and maintained the enterprise-wide network infrastructure of a trading firm with market maker operations at all major US financial exchanges.• Established SEC compliant processes and controls for infrastructure, systems, and data.• Implemented advanced LAN and WAN technologies including routing protocols, multicast, highly redundant architectures.• Built solutions to monitor network performance, utilization, and trends to detect and alert on outages and issues.• Analyzed and solved complex network and system issues using critical thinking and high-level troubleshooting skills.