John Barhorst
Software Engineer at Mastery Logistics Systems
Minneapolis, Minnesota, United States
Summary
👤
Senior🎓
Top SchoolJohn Barhorst is a pragmatic software engineer in Minneapolis who transitioned from a 20-year career in package delivery to building reliable APIs and developer tools over the past nine years. At Mastery Logistics Systems he designs synchronous and asynchronous API features with Fastify, Apollo GraphQL, Kafka/Event Hubs and TypeScript, and is known for fast root-cause analysis using New Relic and deep codebase knowledge. He pairs customer-focused support work with engineering—creating client-facing upload tools, CSV migration helpers, and automation that let non-technical users interact with enterprise APIs. Equally comfortable on the frontend (Next.js/TypeScript) and backend, he has contributed to product design and accessibility for a diabetes-care startup in his spare time. He regularly ships productivity tooling (Chrome extension, dashboards, scripts) that reduces toil and speeds deployments, reflecting a practical, improvement-oriented approach.
9 years of coding experience
3 years of employment as a software developer
Front End Web Development, Front End Web Development at Self TaughtHigh School Diploma, High School Diploma at Forest Lake High SchoolFront-End Development, Front-End Development at Treehouse
Stackoverflow
31reputation
2kreached
0answers
1question
Github Skills (40)
browser10
react10
javascript9
nextjs9
filtering8
compiler8
sorting8
grid8
typescript8
static-site-generator8
hybrid8
in-progress8
storybook7
apollo7
nodejs7
Programming languages (4)
Github contributions (5)
johnbarhorst/johnbarhorst
Mar 2020 - Oct 2021
portfolio/experiments/who knows
Contributions:7 PRs, 105 pushes, 10 branches in 1 year 7 months
knowsjavascript
johnbarhorst/limited-quiver
Aug 2020 - Mar 2021
Contributions:24 PRs, 85 pushes, 13 branches in 7 months
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