Jon Willis - Full-stack AI Engineer

Resume

Objective

Experienced engineer building production applications and agent architectures. I create intelligent, intuitive products that solve real problems while prioritizing user privacy and agency.

Experience

Stealth AI

Software Engineer - AI

Apr 2024 - Present

  • Leading design and implementation of an agent architecture powering core application features
  • Building an extensible agent tooling framework with strong typing, validation, and error correction mechanisms
  • Developing systems to integrate and analyze agent traces for comprehensive evaluation pipelines
  • Implementing hybrid LLM approach combining cloud and local models to optimize cost, performance, and privacy tradeoffs
  • Contributing across the full stack: Deno (AI app extensions), Swift/macOS (frontend), and developer tooling (e.g. CI/CD

waggledance.ai

Solo Founder & Engineer

Jan 2023 - Apr 2024

  • Designed and developed an open-source agentic workflow automation platform similar to Deep Research
  • Architected a multi-agent system with DAG-based planning before reasoning-focused LLMs were widely available
  • Implemented parallel agent execution to achieve significant performance gains over traditional serial approaches
  • Built full-stack application using TypeScript with Next.js, LangChain.js, LangSmith, Prisma+Postgres, Weaviate, and Vercel

Curtsy

Senior iOS Engineer

Mar 2021 - Dec 2022

  • Led comprehensive iOS app rebrand across a large codebase, improving maintainability through automated tests, documentation, and compile-time checking
  • Decreased crash rate by over 10x (from 99% to ≥99.9% crash-free sessions) for an app serving hundreds of thousands of monthly active users
  • Implemented TikTok-inspired video experience for product listings, enhancing user engagement and conversion rates
  • Identified and remediated a critical production security vulnerability affecting user accounts

Pluto TV

Lead Mobile Software Engineer

Sep 2013 - Nov 2016

  • Joined as first mobile engineer at pre-seed stage and scaled through Series B (leading to $340MM acquisition by Viacom)
  • Led engineering team that designed and launched Pluto TV's app coinciding with the 4th generation Apple TV release
  • Architected and implemented the original Pluto TV applications across Android, Android TV, iOS, and Apple TV platforms
  • Built and mentored high-performing mobile and front-end engineering teams through rapid company growth
  • Collaborated with product designers and marketing teams to deliver apps that achieved App Store and Google Play features
  • Directed projects showcased at Google I/O 2015, increasing platform visibility and user adoption

Other Experience

    Find Your Grind

    Lead iOS Engineer

    Jul 2020 - Mar 2021

    Rejuve, Inc.

    Founding iOS Engineer

    Jul 2019 - Jun 2020

    Toot App, Inc.

    Lead iOS Engineer

    Jan 2018 - Jan 2019

    Level11, Inc.

    Consulting iOS Engineer

    Jan 2017 - Jan 2018

    Citrrus, Inc.

    Software Engineer

    Jun 2012 - Sep 2013

Education

  • Virginia Commonwealth University

    Bachelor of Science in Computer Science

    2012