Seongju Lee

I'm a software engineer with 9+ years of experience building and scaling healthcare platforms, real estate tools, and data pipelines. Currently at Berry Street. Before that, I was at Thirty Madison (acquired), where I helped scale the platform from Series B to $250M ARR serving 2M+ patients.

My principles are simple — stay practical, stay curious, execute.

For the full rundown, here's my resume. You can also find me on GitHub and LinkedIn, or send me an email.

Experience

Berry Street Dec 2025 – Present

Senior Software Engineer

Thirty Madison Aug 2021 – Nov 2025

Senior Software Engineer → Staff Software Engineer

Remine Oct 2017 – Aug 2021

Full Stack Engineer → Engineering Manager → Technical Lead

Comscore Jun 2016 – Oct 2017

Software Engineer