JollyDesk

Jaron Tollefson

Automation Technician & Tool Builder

Twin Cities, MNEmailjollydesk.workgithub.com/jtollyinc
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Summary

Field service engineer with an A.A.S. in Automation Robotics Engineering Technology. Installs, commissions, and troubleshoots PLC-, VFD-, and servo-driven packaging machinery at customer sites — and builds tools that measure and fix inefficient workflows, human and AI, from offline shop-floor calculators to a self-hosted AI platform.

Experience
Forpak / MultiSource Mfg.
Jul 2023 – Present
Field Service Engineer
Jul 2026 – Present
↑ Promoted
Maintenance Technician
Jul 2023 – Jul 2026
  • Install, commission, and service servo-driven packaging machinery at customer sites across the U.S. and Canada — often as the only technician on site, about 130 travel nights a year.
  • Program and troubleshoot the full Rockwell stack — CompactLogix PLCs, PowerFlex VFDs, and Kinetix servos in Studio 5000, FactoryTalk View HMIs — plus Festo pneumatics and sensors.
  • For a food-processing customer, commissioned two vision inspection systems, then audited both 5-lane lines' PLC logic rung by rung — root-caused a hidden fault masking jam alarms on 4 of 5 lanes and fixed it with zero downtime.
  • Self-initiated offline, no-install shop-floor tools: a drawing/schematic viewer, belt & PPM calculators, a PM checklist.
Caliber Products Inc
2020 – Jul 2023
Burnsville, MN
Engineering Intern
Apr 2023 – Jul 2023
  • Built relay-based motor controls for production: hands-on 3-phase wiring, panel building, DC motor control.
  • Reverse-engineered powersports parts in SolidWorks; helped revise and troubleshoot a new automated process.
Assembler
2020 – Apr 2023
  • Maintained the line's automation machines; supervised a warehouse and a production line; helped implement SOPs.
Skills

Controls

PLC: Allen-Bradley CompactLogix (Studio 5000)Drives: PowerFlex VFDs, Kinetix servosHMI: FactoryTalk ViewRobotics: FANUC, ABBVision: CognexPanel building & 3-phase wiringPneumatics (Festo) & hydraulics

Software & CAD

PythonTypeScriptReact / Next.jsGitSolidWorks / Fusion 360 / CadQuery3D printing

AI & Data

ClaudeLocal LLMsGmail / Sheets APIsNotionPrompt + agent designAI cost auditing
Education
Hennepin Technical College
2020 – 2022
Eden Prairie, MN
A.A.S. — Automation Robotics Engineering Technology
  • Capstone: a part-checking system with an Allen-Bradley PLC, Cognex vision camera, conveyor, and pneumatics.
  • Honorable Mention, 2022 Bearman-Henningsen Achievement Award · member of the IoPP student leadership team.
Projects
Personal2026 – Present
JollyOS
Self-hosted AI operations platform
  • Built and operate a self-hosted Next.js/TypeScript platform (25 modules) around an AI agent job queue (Agent Control) that supervises Claude Code sessions, plus Gmail-driven bill automation — deployed on Linux (systemd).
jollydesk.work/builds →
Open source2026
Gripe Miner
Claude Code plugin — finds AI-workflow waste
  • Open-source plugin that mines a developer's own Claude Code transcripts for typed complaints, repeated asks, and token-burning loops, verifies each against the real code, and ranks the fixes — runs 100% locally.
  • Measured 3.8B tokens across 3 machines over 60 days (~$5.4k list-price equivalent, 94% cache reads); found ~$600/month of avoidable spend: a scheduled status checker spawning 240+ Opus sessions for one-line answers, an outdated model tier with 4× the cache-read price, and doubled-work loops (one page: 44 sessions in 8 days).
github.com/jtollyinc/gripe-miner →

Off-hours. Keeping an NA Miata on the road, mountain biking, snowboarding.

See what I build →