JOHN RUSHINSKY
Phoenix,AZ
Summary
IT Support and Field Service Technician with 4+ years of experience troubleshooting hardware, software, networking, and end-user technical issues. Background in Tier 3 technical support, Microsoft Teams and unified communications, audiovisual systems, and technical operations. CompTIA A+ and Security+ certified, with additional hands-on experience in Linux administration, self-hosted infrastructure, AI model deployment, and workflow automation. Skilled in diagnosing complex problems, supporting users, and maintaining reliable technical environments.
Overview
3
3
Certifications
5
5
years of professional experience
Work History
Teams Lead AV Technician / IT Field Technician
Beyond20
05.2025 - Current
- Led technical support for Microsoft Teams meetings, conferencing systems, and live audiovisual events.
- Diagnosed and resolved AV, hardware, software, and connectivity issues to minimize interruptions.
- Coordinated technical operations and provided real-time troubleshooting during meetings and events.
- Supported IT infrastructure, endpoint security, software maintenance, and user troubleshooting.
- Managed technical support requests, equipment documentation, and system configurations.
Field Technician
Essential Enterprise
09.2022 - 05.2025
- Diagnosed equipment and component failures, performed field repairs and preventive maintenance, and documented service outcomes.
- Used remote-support tools and customer communication to resolve problems efficiently.
Tier 3 Technical Support Representative
Arcsmart Solutions
07.2021 - 09.2022
- Resolved escalated technical support issues involving complex customer and equipment problems.
- Diagnosed issues remotely, documented resolutions, and maintained service quality standards.
- Monitored support performance metrics and identified opportunities to improve workflows.
- Trained new support representatives and assisted with escalations.
Education
High school diploma -
Desert Vista High School
05-2020
CompTIA Security+ - IT Security
CompTIA
05.2001 -
CompTIA A+ - Computer Science
CompTIA
05.2001 -
Skills
IT Hardware & Software Troubleshooting
Microsoft Teams & Conference Room AV
Technical Support & Ticketing Systems
Networking Fundamentals (TCP/IP, DNS, DHCP)
Remote Desktop & End-User Support
Linux Administration (Ubuntu)
Certification
CompTIA Security+
Timeline
Teams Lead AV Technician / IT Field Technician
Beyond20
05.2025 - Current
Field Technician
Essential Enterprise
09.2022 - 05.2025
Tier 3 Technical Support Representative
Arcsmart Solutions
07.2021 - 09.2022
CompTIA Security+ - IT Security
CompTIA
05.2001 -
CompTIA A+ - Computer Science
CompTIA
05.2001 -
High school diploma -
Desert Vista High School
Technical Project
inux Infrastructure & AI Automation | Independent Homelab
- Configured and maintained Ubuntu Linux environments, including AMD ROCm GPU acceleration, system dependencies, and performance troubleshooting.
- Deployed and optimized locally hosted AI models using Ollama and llama.cpp, including model quantization, inference configuration, and context management.
- Built automated workflows using n8n, Supabase (PostgreSQL), REST APIs, and Telegram integrations for data processing, event monitoring, and notifications.
- Integrated local language models with DeepSeek Harness and Playwright to enable autonomous browser navigation, information extraction, and multistep tool execution.
- Experimented with YOLO computer vision and object detection on Raspberry Pi hardware, exploring AI inference on resource-constrained devices.