Will Fellhoelter

Will Fellhoelter

Principal Software Engineer in Denver. Eight years across the stack, from data and application code to the Kubernetes underneath. Lately that points at agentic AI infrastructure at scale.

About

I usually end up wherever the gap is between what a client needs and what actually ships: data, application logic, deploys, the Kubernetes underneath, the alerting on top. At Accuris that means the MCP mesh connecting 250+ tools to every team, operations for 100+ microservices across 6 regions, a few services of my own the wider org depends on, and helping map out the work standardizing CI/CD across 1,000+ repos. Before that, first engineering hire at an AI startup, working with founders and enterprise clients. Wichita State, MIS, 2018. Open to forward deployed and platform roles.

Selected work

  • MCP mesh

    Accuris · 2025–2026

    Governed agent tooling for the whole org: 250+ tools behind one gateway, SSO, central observability. Built the first internal MCP servers and the plugin library, then the mesh every team uses.

  • Sauce

    Open source · 2026–

    An agentic operating loop for Obsidian. Notes become node-based work graphs that agents like Claude Code and Codex execute in isolated workers, with scheduling, retries, handoffs between agents, and a persistent task store. Started as a loop-based forward deployment mechanism, rebuilt around graphs. Versioned vault platform shipped via Homebrew, MIT.

    GitHub ↗
  • Ephemeral environments, three times

    Cerner · Lendflow · Project Canary

    Self-service test environments with data seeding and automatic cleanup, built for three different orgs: an AWX portal at Cerner, ephemeral infrastructure for dev and QA at Lendflow, a UI with branch and data-source selection at Project Canary. The problem I keep getting handed.

Experience

Mar 2026 – now
Accuris · Principal Software Engineer · MCP mesh, multi-region Kubernetes, 70+ AWS accounts
Apr 2025 – Mar 2026
Accuris · Senior Software Engineer · GitHub migration, first internal MCP servers
Aug 2024 – Apr 2025
Forml · Senior Full Stack Engineer · first engineering hire, on-prem deploys
May 2023 – Aug 2024
Project Canary · DevOps Engineer · observability, ephemeral environments, RAG
Aug 2021 – May 2023
Lendflow · DevSecOps Engineer · SOC 2, on-call, OpenSearch logging
Mar 2020 – Aug 2021
MCG · DevOps Engineer · on-prem to Azure, Chef to Ansible
Oct 2018 – Mar 2020
Cerner · Systems Engineer · 600+ vSphere hosts, AWX portal