# Jason Sims

Staff Software Engineer

[Download resume (PDF)](https://jsonsims.com/jason-sims-resume.pdf)

Full-stack engineer who ships end to end, from production LLM-agent infrastructure at work to a cross-platform desktop app with its own community. TypeScript and Go, with deep AI-agent integration experience.

Agent-first by habit: parallel Claude Code sessions in isolated git worktrees, Herdr to keep tabs on them, VS Code for reading code and reviewing the diffs they produce.

- email: [hello@jsonsims.com](mailto:hello@jsonsims.com)
- github: [@jasonsims](https://github.com/jasonsims)
- linkedin: [in/jsonsims](https://linkedin.com/in/jsonsims)

## Projects

### Slack-native engineering agent (Pendo)

_Takes a ticket, works the codebase, opens the pull request_

An agent we call Hork, built 0 to 1 and working across a multi-repo codebase. It picks up new bugs as they're filed and jumps on CI failures on its own; an @-mention points it at a specific ticket. Bug triage came first, then smaller feature work.

Each investigation is a live session bound to a Slack thread, not a one-shot prompt. Reply to redirect it mid-run, add context like screenshots or logs, or approve the pull request it's offering.

Stack: TypeScript, Hono, Claude Managed Agents, MCP, GCP Cloud Run, Firestore

### [ROMie](https://github.com/jzimz/romie) (Open source)

_Desktop app for syncing ROM libraries to retro handhelds_

Shipped for macOS, Windows, and Linux, with an active Discord community. An extensible device-profile system maps ROMs to the right layout per handheld OS, with RetroAchievements verification by MD5 hash.

Stack: Electron, Vue 3, TypeScript, Node.js

## Experience

### Staff Software Engineer @ Pendo

2020 — Present

Lead engineering across the product suite and build the internal AI-agent infrastructure our engineers use. Promoted to Staff in 2024. Cut a critical Node.js microservice's execution time by 40% and localization turnaround by 80%.

### Staff Engineer @ Nutanix

2012 — 2020

One of the first 100 employees; helped scale it into a billion-dollar public company. Built the first customer-facing web portal, led the VM Management UI migration from Backbone to React, and hold US Patent #10133619.

### Corporate Engineer @ Google

2010 — 2012

Automated inventory management and network port assignments with Python, reducing manual IT workloads across global offices.

## Technical Skills

- **Languages:** TypeScript, JavaScript, Go, Python, Bash
- **AI & Agents:** Anthropic SDK, Claude Managed Agents, Model Context Protocol (MCP), Multi-tool orchestration, Human-in-the-loop design
- **Frontend:** React, Vue, Next.js, Nuxt, Tailwind, Electron
- **Backend:** Node.js, Hono, Express, Go, WebSockets, OpenAPI
- **Cloud & Data:** GCP (Cloud Run, Firestore), AWS (S3, ECS), Docker, MongoDB, SQLite
- **Build & Testing:** Vite, GitHub Actions, CircleCI, Jest, Cypress

## Education

- B.S., Applied Networking and Systems Administration, Rochester Institute of Technology
- Programming with Google Go (Specialization), University of California, Irvine (2024)