Justin Kahal

• Designed and supported county LAN/WAN network infrastructure, configuring L2/L3 switches, routers, wireless, and SD‑WAN to maintain high availability and redundancy for critical services across enterprise environments.
  
• Collaborated with security and IT teams to safeguard network infrastructure and support security investigations, aligning changes with best practices and compliance requirements.
  
• Implemented LAN/WAN networks by configuring switches and routers using Cisco DNA, network mesh topology, wireless 6/6e networks, and Cisco SD‑WAN.
  
• Administered VMware‑based virtual machines and underlying storage for application and infrastructure workloads, including ESXi host maintenance, VM provisioning, and performance troubleshooting.
  
• Optimized network efficiency by configuring load balancing and ACLs for wireless access points and edge devices, and segmenting traffic using VLANs.
  
• Coordinated with the Network Security team when unauthorized access or potential DDoS activity was detected, helping to contain threats and restore normal operations.
  
• Coordinated and scheduled meetings with internal team members, LA County employees, and ISP field technicians, acting as the primary liaison between all stakeholders.
  
• Produced detailed reports and analyses for upper management using Cisco BroadWorks and nGenius to diagnose and illustrate latency and packet loss issues with topologies and performance graphs.
  

• Led major network installation and upgrade projects, designing and implementing scalable, redundant infrastructure for terminal and data center environments.
• Managed rack‑mounted enterprise servers, storage, and networking equipment, ensuring stable power, cooling, and structured cabling practices in the server room.
• Oversaw server upgrades and operating system deployments, coordinating with cross‑functional teams to minimize downtime and validate changes in test environments before production.
• Diagnosed complex network issues involving hardware, software, power, and communications components, restoring service within defined SLAs.
• Collaborated with cross‑functional teams on disaster recovery planning, network backup strategy, and recovery process monitoring to strengthen service resilience.

• Managed rack‑mounted enterprise servers, storage, and networking equipment in on‑site media data centers, ensuring stable power, cooling, and cabling practices in the server room.
• Configured and maintained media storage servers with RAID 6 and third‑party tools for monitoring, maintenance, and data backup, supporting high‑throughput production workflows.
• Documented physical and logical layouts of racks, networking gear, and UPS/battery backups using Visio, improving lab/server room visibility and change planning.
• Worked hands‑on in a lab‑style environment with a variety of servers, storage, and test equipment, contributing to continuous improvements in reliability and workflow.
• Used office tools like Visio to document physical layout of server racks/blades, networking equipment, and batteries
• Utilized remote desktop services and making sure security policies were followed

• Served as IT and network engineer for a 40–50 user environment, managing Windows servers, workstations, and network equipment in a mixed Windows/Linux environment.
• Performed system updates, backups, and routine maintenance to mitigate vulnerabilities and support availability and data protection.
• Developed basic system and network documentation (device inventories, configurations, and user guides) to standardize support and reduce repetitive issues.
• Set up and troubleshoot printers and other IT client equipment to meet HIPAA legal compliance
• Installed system updates to address vulnerabilities and reduce security issues.

• Built and maintained Linux‑based test setups and lab environments for Intel platform validation, including firmware flashing and system configuration according to engineering specs.
• Developed Python and BASH automation scripts to streamline test workflows, increasing repeatability and reducing manual effort.
• Worked closely with QA and validation engineers to reproduce issues, gather logs, and document findings, improving test coverage and defect resolution.

• Erected and maintained race car simulator that was used to conduct research on volunteers in order to record data that needed to be sent securely and effectively to researchers.
• Coordinated with research and development team to support production and boost efficiency.
• Followed research protocols when gathering data and performing lab experiments.
• Eliminated procedure gaps by effectively guiding and teaching 2-3 Technicians on operations of machinery, inspection protocols and processes

Built and deployed DIRECTV set-top-box application using Git, Apache Subversion (SVN) revision control system, Google Closure Tools, Apache Maven, and Jenkins.

• Documented technical workflows and knowledge to educate newly hired employees.
• Documented software development methodologies in technical manuals to be used by IT personnel in future projects.

Worked with the SDI (Spatial Data Infrastructure) team which mainly dealt with enterprise website (Geoportal) front and backend development; usually utilizing geolocation services and data

• Developed a Gazetteer Search Service for existing .NET web application.
• Implemented XML and MySQL for querying specified WFS-G.
• Created XSLT 1.0 files to change XML request and response.
• Implemented a new Java class to effectively manage Gazetteer Search.
• Used a PostgreSQL database for Apache Tomcat Java Servlet.