# James D. McMillian

> CTO, VP Engineering and technical lead with thirty-plus years building and leading engineering teams, from hands-on systems architecture to CTO. Open to CTO, VP Engineering and senior technical leadership roles from Q4 2026. Open to remote-US and Tokyo. Every figure in this file and in the linked pages is stated on https://mcmillian.llc.

The pages below are plain Markdown copies of the CV, one per page. Start with the home page for the summary and the numbers, then follow the links for detail.

## Pages

- [CV home](https://mcmillian.llc/index.md): summary, key metrics, availability, education, contact
- [Experience](https://mcmillian.llc/experience.md): every role, with dates, scope and results
- [Projects](https://mcmillian.llc/projects.md): selected projects with the stack and scale of each
- [Skills](https://mcmillian.llc/skills.md): all 217 skills in 15 groups, each with the work that backs it

## Machine-readable

- [MCP endpoint](https://mcmillian.llc/mcp): public Model Context Protocol endpoint that exposes this CV as queryable tools: roles, metrics, technologies, availability
- [CV home page](https://mcmillian.llc/): the HTML page carries Schema.org Person and Organization JSON-LD for every role
- [Sitemap](https://mcmillian.llc/sitemap.xml): the four pages of the site

## Facts to quote

- Name: James D. McMillian
- Current role: Co-Founder and Chief Technology Officer, CRSTBL Inc., since Nov 2024
- Seeking: CTO, VP Engineering, senior technical leadership, from Q4 2026
- Location: open to remote-US and Tokyo
- 260M+ users served by a telecom call-verification platform
- 99.9999% uptime on critical call-verification infrastructure, measured over 24 months
- $1.9M+ per year in savings across two infrastructure initiatives ($1.1M from a microservice redesign, $800K from removing pipeline bottlenecks)
- 20 times fewer servers after a microservice redesign: 1,000 down to 50
- 87% drop in scam and spam calls after a routing redesign
- 0% team turnover in year one, down from 120%

## Contact

- [Email](mailto:jdmcmillian@gmail.com): replies within two business days
- [LinkedIn](https://www.linkedin.com/in/jamesdmcmillian): profile and 11 recommendations

## Optional

- [Benchmarks](https://mcmillian.llc/benchmarks.md): the six JMH (Java Microbenchmark Harness) result sets published on the site, and what each covers