Kevin W. Lee
Full-stack developer with 25+ years of experience in web, mobile, and database development. Specializing in Ruby on Rails, JavaScript, Python, and PostgreSQL.
Ruby on Rails
Python
PostgreSQL
JavaScript
Vue 3
FastAPI
Android
iOS
.NET
Work History
CTO, Ad Valorem Advisors
2025 – present
- Building a modern property-tax platform for home builders.
- Stack: Rails 8, PostgreSQL, Python.
- avatx.com
Senior Mobile Developer, YNAB
2016 – 2025
- Part of the engineering leadership team.
- Worked closely with product designers and PMs to ship features and shape new ideas.
- Helped develop the YNAB Android app and grow the Android team.
- ynab.com
Lead iOS & Web Developer, ChaiOne
2011 – 2016
- Built iPhone and iPad apps for clients as the App Store emerged.
- Helped clients build their own mobile apps and mobile developer teams.
- Focused heavily on internal tooling to support delivery teams.
- chaione.com
Earlier Career
Developer, Sogeti
2008 – 2011
Focused on .NET back-office systems for large Houston-based oil and gas companies.
Developer, The Rand Group
2005 – 2008
Developed ASP.NET back-office systems for small to mid-sized Houston-based companies.
Software Support & Tech Ops, Amegy Bank
2003 – 2005
Software support and tech ops for the foreign exchange team.
Developer, Data Projections
1998 – 2003
Got my start here, working with Access databases, SQL Server, IIS, VBScript, and a lot of HTML.
Education
B.A. Finance, University of Houston Downtown
2007