CV

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Contact Information

Name Joe Sandmeyer
Email joe.sandmeyer@gmail.com
Website https://JoeSandmeyer.com/

Professional Summary

Developer Relations / Developer Experience / Solutions Engineering

Experience

  • 2024 - present

    Washington DC

    AI Model Trainer
    Data Annotation
    • Diagnosed and reported flaws in AI generated code (part-time)
    • Built small projects to challenge tool-using agentic AI models
    • Stack: Python, JavaScript
  • 2024 - 2026

    Washington DC

    Developer Relations Manager
    Yellow Dog Software
    • Guided third-party POS developers integrating with Yellow Dog’s inventory platform via REST API.
    • Authored and maintained external developer documentation and reference sample code.
    • Stack: C#, JavaScript, SQL
  • 2022 - 2024

    Washington DC

    Developer Relations Lead
    Vatom.com
    • Owned developer-facing documentation and sample code for Web3 SDKs, APIs, and tooling covering identity, wallets, and 3D virtual spaces.
    • Directly contributed to code repositories of enterprise parters enabling dozens of brand engagement campaigns reaching thousands of customers.
    • Stack: TypeScript, JavaScript, React
  • 2022 - 2023

    Washington DC

    Technical Project Manager
    National Conference on Citizenship
    • Managed remote software work on ETL pipelines and the Junkipedia disinformation-tracking platform.
    • Maintained API documentation for external developers.
    • Stack: Python, Ruby on Rails, Elasticsearch, AWS
  • 2019 - 2021

    San Francisco, CA

    Director of Developer Relations
    Castle.io
    • Led Developer Experience (SDKs, tools, docs, technical escalations) and pre/post-sales engineering for a bot/fraud detection platform
    • Built Soc 2 controls and answered enterprise client InfoSec questionnaires.
    • Stack: JavaScript, Cloudflare Workers
  • 2015 - 2018

    San Francisco, CA

    Head of Solutions Engineering, North America
    Fyber (acquired by digitalturbine.com)
    • Built and ran Solutions Engineering teams in San Francisco and Beijing supporting ~10,000 publishers reaching ~1.2B monthly active users across 180 countries.
    • Stack: Objective-C (iOS), Java (Android)
  • 2013 - 2015

    Mountain View, CA

    Developer Relations, Technical Director
    Quixey
    • Promoted the AppURL deep-linking standard
    • Served as technical point of contact between clients and partners
    • Stack: JavaScript/jQuery front end prototypes for partners, web crawl & scrape tools
  • 2009 - 2012

    San Francisco, CA

    Director, Sales Engineering
    GREE / OpenFeint
    • Integrated the OpenFeint mobile game backend SDKs into mobile games for partners
    • Built and led a 10 person Sales Engineering team to promote and support SDKs used by thousands of developers in mobile games for over 100M end users.
    • Stack: Objective-C (iOS), Java (Android)
  • 1986 - 2009

    Early Career
    • AI & Systems Developer — Brainpool (2007–2009): Natural-language–driven behavior AI for animated characters
    • Independent Contractor (Glu Mobile, Atlas Telecom Mobile, FingerTwitch, Sennari) (2002–2007): Brew / J2ME mobile game development; gameplay and game AI
    • 3D & Game AI Engineer — 3DO Company (1997–2003): Gameplay, animation control, physics simulation, spatial DB, pathfinding, tactical maneuver control and behavioral AI across the BattleTanx trilogy, High Heat Baseball, *Army Men *, and two unreleased titles
    • CTO — Talkie, Inc. (1997–2001): Built and led the founding engineering team
    • 3D & Game AI Engineer — Virgin Interactive Entertainment (1994–1997): 3D world builder, scripting engine, game AI (Grand Slam baseball)
    • Earlier roles — Jostens Learning, Berkeley Systems (adaptive software for users with disabilities), MacDraft, 1986 (UI, rendering, and file serialization code)

Skills

Programming Languages: TypeScript, JavaScript, Python, C, C++, Objective-C, C#, SQL, Java (Android, J2ME), Pascal
Web & Cloud: React, Node.js, Cloudflare Workers (serverless edge), AWS, Elasticsearch
APIs & Integration: REST/JSON:API, OAuth 2.0, OpenAPI, webhook/event integrations, SDK design
Domains: Developer Relations, Solutions / Pre- & Post-Sales Engineering, Agentic AI, Vector Relevance Sorting, 3D graphics and game AI, mobile (iOS / Android), Web3 (wallets, identity, NFTs), POS / inventory integration, Project Management
Craft: Technical writing, sample code, code review, mentoring, cross-functional and offshore team leadership

Education

  • 1979 - 1985

    San Diego, California

    BA
    University of California, San Diego
    Sociology, Computer Science, Philosophy

Languages

English : Native speaker
Spanish : Basic proficiency