{"type":"page","slug":"cv-engineering","title":"Engineering CV","summary":"Walter Spence: the AI agent systems I build and run, with 20+ years in sleep medicine as the domain.","published_at":"2026-11-02T00:00:00-05:00","revised_at":"2026-11-02T03:55:08-05:00","body_markdown":"**Walter Spence, RPSGT**\nRichmond, VA · [walt@waltspence.com](mailto:walt@waltspence.com) · [LinkedIn](https://linkedin.com/in/waltspence) · [GitHub](https://github.com/waltspence)\n\nI build and run AI agent systems and the software around them. Registered Polysomnographic Technologist with more than 20 years in sleep medicine and over 15,000 studies of every type, focusing on alternative therapies, with a specialty in pediatrics. I lead the hypoglossal nerve stimulation (HGNS) program at St. Mary's Hospital.\n\nOpen to clinical and engineering roles, remote preferred.\n\n## AI agent systems and projects\n\n### Independent web developer and consultant\nWeb and AI agent systems · 2004 to present\n\n- Contract web development since 2004; for the last five years, consulting and individual-contributor work on web and AI agent systems alongside sleep medicine.\n- [zap](https://github.com/waltspence/zap): a terminal-native app uninstaller for macOS and Linux. On its first run on my own machine, it freed over 20 GB.\n- Helix: a multi-node fleet of AI agents across Linux and macOS, with a scheduled loop that finds recurring failures, tests fixes and ships them behind a rollback. See [Supposed to Run Itself](/notes/supposed-to-run-itself).\n- [Knowfer](/projects/knowfer): a Rails knowledge base that agents read and write over MCP.\n- [Talkify](/projects/talkify): a Rails and Vue 3 dashboard for running agents.\n- [waltspence.com](/projects/waltspence-com): this site and its publishing desk, on Rails, Vue 3, Redis, and Python and Node workers.\n\n### Founder and CEO\nEnLab, LLC · 2010 to 2016\n\n- Founded a startup focused on a WebRTC meeting project.\n\n## Skills\n\n- **Software:** Ruby on Rails, Python, JavaScript and Vue, Shell, PostgreSQL, Redis, Docker, Linux and macOS administration, LLM integration and agent systems\n- **Technical:** neurostimulator titration workflow, electrode application and troubleshooting, diagnostic equipment calibration and maintenance\n- **Clinical:** polysomnography of every study type (adult, pediatric, high-acuity), hypoglossal nerve stimulation (HGNS) titration and follow-up with Inspire, MSLT, PAP therapy and compliance education, AASM scoring\n\n## Clinical experience\n\n### Registered Polysomnographic Technologist, Daytime\nBon Secours Mercy Health, Richmond, VA · July 2025 to present\n\n- Leads the hypoglossal nerve stimulation (HGNS) program at St. Mary's Hospital.\n- Daytime testing operations and physician workflow, including study readiness and documentation.\n\n### Overnight Registered Polysomnographic Technologist\nVirginia Commonwealth University Health, Richmond, VA · 2024 to 2025\n\n- Returned to pediatric sleep medicine, which I had worked in early in my career.\n- Trained and mentored new technologists in electrode application, study protocol, scoring criteria and EMR use.\n\n### Daytime Registered Polysomnographic Technologist\nPulmonary Associates of Richmond, Richmond, VA · 2024\n\n- Scoring and interpretation workflow, including DME setup.\n\n### Overnight Registered Polysomnographic Technologist\nCommunity Health Systems / Bon Secours Mercy Health, Richmond, VA · 2020 to July 2025 (PRN from 2024)\n\n- Technical operations of the sleep lab, including equipment readiness and data quality.\n\n### Overnight Polysomnographic Technician\nSleep Clinics of America, Richmond, VA · 2017 to 2020\n\n- Diagnostic accuracy and patient comfort across high-volume overnight studies.\n\n### Earlier sleep laboratory roles\n\n- Sleep 360, Austin, TX · 2016\n- Virginia Medical Group, Colonial Heights, VA · 2014 to 2016\n- Bon Secours Health Source, Richmond, VA · 2010 to 2014\n- River City Sleep Medicine (Neurological Associates), Richmond, VA · 2008 to 2010\n- Sleep Disorders Center of VA, Colonial Heights, VA · 2003 to 2008\n\n## Certifications\n\n- RPSGT, Registered Polysomnographic Technologist (Board of Registered Polysomnographic Technologists)\n- BLS, Basic Life Support\n- Licensed in Virginia and North Carolina\n\n## Education\n\n- Coursework, Richard Bland College of William & Mary, Petersburg, VA\n- High school diploma, Dinwiddie County High School, Dinwiddie, VA\n","body_html":"

Walter Spence, RPSGT\nRichmond, VA · walt@waltspence.com · LinkedIn · GitHub

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I build and run AI agent systems and the software around them. Registered Polysomnographic Technologist with more than 20 years in sleep medicine and over 15,000 studies of every type, focusing on alternative therapies, with a specialty in pediatrics. I lead the hypoglossal nerve stimulation (HGNS) program at St. Mary’s Hospital.

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Open to clinical and engineering roles, remote preferred.

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AI agent systems and projects

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Independent web developer and consultant

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Web and AI agent systems · 2004 to present

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Founder and CEO

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EnLab, LLC · 2010 to 2016

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Skills

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Clinical experience

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Registered Polysomnographic Technologist, Daytime

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Bon Secours Mercy Health, Richmond, VA · July 2025 to present

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Overnight Registered Polysomnographic Technologist

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Virginia Commonwealth University Health, Richmond, VA · 2024 to 2025

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Daytime Registered Polysomnographic Technologist

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Pulmonary Associates of Richmond, Richmond, VA · 2024

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Overnight Registered Polysomnographic Technologist

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Community Health Systems / Bon Secours Mercy Health, Richmond, VA · 2020 to July 2025 (PRN from 2024)

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Overnight Polysomnographic Technician

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Sleep Clinics of America, Richmond, VA · 2017 to 2020

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Earlier sleep laboratory roles

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Certifications

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Education

\n\n","text":"Walter Spence, RPSGT\nRichmond, VA · walt@waltspence.com · LinkedIn · GitHub\nI build and run AI agent systems and the software around them. Registered Polysomnographic Technologist with more than 20 years in sleep medicine and over 15,000 studies of every type, focusing on alternative therapies, with a specialty in pediatrics. I lead the hypoglossal nerve stimulation (HGNS) program at St. Mary’s Hospital.\nOpen to clinical and engineering roles, remote preferred.\nAI agent systems and projects\nIndependent web developer and consultant\nWeb and AI agent systems · 2004 to present\n\nContract web development since 2004; for the last five years, consulting and individual-contributor work on web and AI agent systems alongside sleep medicine.\nzap: a terminal-native app uninstaller for macOS and Linux. On its first run on my own machine, it freed over 20 GB.\nHelix: a multi-node fleet of AI agents across Linux and macOS, with a scheduled loop that finds recurring failures, tests fixes and ships them behind a rollback. See Supposed to Run Itself.\nKnowfer: a Rails knowledge base that agents read and write over MCP.\nTalkify: a Rails and Vue 3 dashboard for running agents.\nwaltspence.com: this site and its publishing desk, on Rails, Vue 3, Redis, and Python and Node workers.\n\nFounder and CEO\nEnLab, LLC · 2010 to 2016\n\nFounded a startup focused on a WebRTC meeting project.\n\nSkills\n\nSoftware: Ruby on Rails, Python, JavaScript and Vue, Shell, PostgreSQL, Redis, Docker, Linux and macOS administration, LLM integration and agent systems\nTechnical: neurostimulator titration workflow, electrode application and troubleshooting, diagnostic equipment calibration and maintenance\nClinical: polysomnography of every study type (adult, pediatric, high-acuity), hypoglossal nerve stimulation (HGNS) titration and follow-up with Inspire, MSLT, PAP therapy and compliance education, AASM scoring\n\nClinical experience\nRegistered Polysomnographic Technologist, Daytime\nBon Secours Mercy Health, Richmond, VA · July 2025 to present\n\nLeads the hypoglossal nerve stimulation (HGNS) program at St. Mary’s Hospital.\nDaytime testing operations and physician workflow, including study readiness and documentation.\n\nOvernight Registered Polysomnographic Technologist\nVirginia Commonwealth University Health, Richmond, VA · 2024 to 2025\n\nReturned to pediatric sleep medicine, which I had worked in early in my career.\nTrained and mentored new technologists in electrode application, study protocol, scoring criteria and EMR use.\n\nDaytime Registered Polysomnographic Technologist\nPulmonary Associates of Richmond, Richmond, VA · 2024\n\nScoring and interpretation workflow, including DME setup.\n\nOvernight Registered Polysomnographic Technologist\nCommunity Health Systems / Bon Secours Mercy Health, Richmond, VA · 2020 to July 2025 (PRN from 2024)\n\nTechnical operations of the sleep lab, including equipment readiness and data quality.\n\nOvernight Polysomnographic Technician\nSleep Clinics of America, Richmond, VA · 2017 to 2020\n\nDiagnostic accuracy and patient comfort across high-volume overnight studies.\n\nEarlier sleep laboratory roles\n\nSleep 360, Austin, TX · 2016\nVirginia Medical Group, Colonial Heights, VA · 2014 to 2016\nBon Secours Health Source, Richmond, VA · 2010 to 2014\nRiver City Sleep Medicine (Neurological Associates), Richmond, VA · 2008 to 2010\nSleep Disorders Center of VA, Colonial Heights, VA · 2003 to 2008\n\nCertifications\n\nRPSGT, Registered Polysomnographic Technologist (Board of Registered Polysomnographic Technologists)\nBLS, Basic Life Support\nLicensed in Virginia and North Carolina\n\nEducation\n\nCoursework, Richard Bland College of William & Mary, Petersburg, VA\nHigh school diploma, Dinwiddie County High School, Dinwiddie, VA","url":"https://waltspence.com/cv/engineering","links":{"html":"https://waltspence.com/cv/engineering","json":"https://waltspence.com/cv/engineering.json","txt":"https://waltspence.com/cv/engineering.txt","md":"https://waltspence.com/cv/engineering.md","canonical":"https://waltspence.com/cv/engineering"},"revisions":[{"at":"2026-11-02T03:55:08-05:00","summary":"Revised"},{"at":"2026-11-02T03:55:08-05:00","summary":"Revised"}]}