Alex Rock

Software Engineer (AI tools for creative work)

Denver, Colorado · hi@lxrck.com · lxrck.com · linkedin.com/in/bangarang

Software engineer with 13+ years across agencies, studios, a decade of independent work, and startups. Currently Founding Member of Technical Staff at Obvious, building AI tools for creative people; previously Agent Engineering Lead at Flatfile, where four promotions took me from Senior SWE to running agent engineering. CS and Physics background. The throughline: making hard things feel easy.

01Experience

Obvious · Founding Member of Technical Staff

Mar 2025 – Present · San Francisco

  • Building AI tools that put agents in the hands of creative people: the agent runs in E2B sandboxes with infinite context, skills, and connectors.
  • Built the platform underneath: billing structure, usage metrics, workspace and team sharing, and the management and marketing content.
  • Startup under 50 people. Small team, hard problems; the kind of place where your work is the product.

Flatfile · Agent Engineering Lead

Apr 2021 – Mar 2025 · Denver / Remote

  • Four promotions in four years: Senior SWE → Staff SWE → Engineering Team Lead, Developer Experience → Agent Engineering Lead.
  • Shipped the Plugin Library with AI at its core; presented it at Flatfile Dev Day.
  • Led the Developer Experience team; ended up running agent engineering for data onboarding.
  • The arc: individual contributor to team lead, data onboarding to AI agents.

TechGrayscale · Lead Software Engineer

Apr 2017 – Sep 2022 · Denver

  • Lead engineer at a design studio: sites and apps where movement and typography carried the meaning.

Riven / Modit3D · Contract Engineer

Jan 2016 – Jul 2019 · Colorado

  • Built a fully interactive Three.js mesh-modeling tool for 3D-scanned objects (Modit3D/Revit).
  • Contract engineer for a 3D-scanning startup: captured scans became editable meshes in the browser.

Reflektive · Software Engineer

Dec 2018 – Mar 2020 · San Francisco / Remote

  • Built dashboards and data pipelines for HR analytics: clean data engineering that made messy people data legible for managers.

Human Design · Senior Software Engineer

Mar 2019 – Mar 2020 · Remote

  • JavaScript, PHP, and React Native builds for a design studio where the design was the spec.

Spire Digital · Software Engineer

Sep 2018 – Sep 2019 · Denver

  • PHP and React Native projects for a digital product agency; ramp fast, ship clean.

3D Robotics · Software Engineer

Jun 2015 – Dec 2015 · Berkeley

  • Built the Ruby on Rails inventory system that tracked every part on every shelf.

The New BLK · Full Stack Developer

Jan 2013 – Jun 2016 · Omaha

  • First engineering job: websites and tools for an Omaha media production company; the web as a storytelling medium.

02Education

University of Nebraska-Lincoln · B.S. Computer Science

2007 – 2012

with Physics, Philosophy, and Music: four subjects, one degree.

03Skills

  • Agents & AIAgent harnesses & orchestration, Evals (Braintrust, homegrown harnesses), Decision models (System One / Jev), Improv (self-built agent framework, 1yr+ solo), LangChain, AI SDK, Vector stores, Graph databases
  • LanguagesTypeScript, Rust, Python, Go, JavaScript, PHP, Ruby
  • BackendAWS, Kubernetes, Node.js, Ruby on Rails, Data onboarding, Developer experience
  • FrontendReact, Next.js, Three.js, React Native, Tailwind CSS
  • CraftDesign engineering, Animation, Typography
  • Off the clockPhotography, Cycling, Coffee, Jazz improv, studying the mechanics of billiards right now