Mike Lewis is a senior product leader and former engineer with 16 years building consumer-facing content platforms from the ground up. Based in San Francisco, he led Scribd’s transformation from a $10M ARR document-sharing site into a $100M+ subscription business and now heads UGC products including Scribd.com and the acquired SlideShare. He blends hands-on engineering (early lead product engineer at Scribd) with strategic product leadership, scaling teams and revenue while overseeing millions of monthly users and 2M+ subscribers. Mike contributes to open-source Ruby tooling—improving validation and type coercion middleware in the Goliath web server—highlighting his backend instincts. Known for turning technical improvements into measurable product outcomes, he hires and mentors cross-functional teams across PM, design, ML, and analytics.
16 years of coding experience
9 years of employment as a software developer
Bachelors, Computer Science, Bachelors, Computer Science at Rochester Institute of Technology
Goliath is a non-blocking Ruby web server framework
Role in this project:
Back-end Developer
Contributions:15 commits in 4 months
Contributions summary:Mike primarily contributed to the `goliath` web server framework by adding and improving validation features within the Rack middleware. They implemented the `CoerceValue` middleware, which handles type coercion of request parameters, including boolean, integer, and float conversions. Additionally, they fixed specifications and generalized the `CoerceValue` middleware to support a wider range of data types, enhancing the framework's flexibility and robustness.
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Mike Lewis - Senior Director, Product - UGC at Scribd