Kelvan Brandt is a senior full-stack engineer with 8 years of experience building and scaling early-stage products, frequently serving as a founding engineer and consultant. He specializes in React and TypeScript and delivers end-to-end systems—from frontend architecture to backend services, distributed data pipelines, and infrastructure. His work includes rebuilding legacy platforms into modern stacks, improving large React app performance (e.g., cutting FCP from ~9s to 1.5s), and operating data pipelines processing tens of millions of records. He’s independently shipped SaaS products and grew one from a free extension to $12k MRR while slashing infrastructure costs 50%, and contributed front-end features to the notable open-source GrowthBook A/B testing platform. Based in Greater Seattle, he’s currently exploring senior roles at early-stage startups and is actively building AI-powered automation tooling that combines LLMs with robust job-scraping and scoring pipelines.
7 years of coding experience
5 years of employment as a software developer
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at Western Washington University
Open Source Feature Flagging and A/B Testing Platform
Role in this project:
Full-stack Developer
Contributions:19 reviews, 52 commits, 26 PRs in 4 months
Contributions summary:Kelvan primarily contributed to the front-end of the GrowthBook platform, implementing features related to configuration management and user interface improvements. They addressed error handling for configuration file imports, enhanced error messaging, and added the ability to specify owners for various features. Additionally, the user integrated Vercel for API key and environment variable management and made updates to the experiment and feature tables, further expanding the platform's capabilities.
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.