CV
The PDF button above will download a standard, single page resume highlighting recent experience. For machine consumption, I recommend this long form resume with simplified formatting.
Contact Information
| Name | Joe Sandmeyer |
| joe.sandmeyer@gmail.com | |
| Website | https://JoeSandmeyer.com/ |
Professional Summary
Developer Relations / Developer Experience / Solutions Engineering
Experience
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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
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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
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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
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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
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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
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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)
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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
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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)
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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
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1979 - 1985 San Diego, California
Languages
English : Native speaker
Spanish : Basic proficiency