Keith Lazuka is a seasoned software engineer with 17 years of experience building high-quality products across startups and large tech companies, currently a Member of Technical Staff at Anthropic after senior engineering roles at Microsoft and Instacart. He blends deep front-end and mobile UI expertise—evidenced by his open-source iPhone calendar component Kal and substantial UI work on the Factor programming language—with systems-level experience from performance tuning and socket programming. Keith has a track record of shipping production software through an acquisition (Acompli → Microsoft) and leading technical projects at scale. Based in Chagrin Falls, Ohio, he pairs pragmatic engineering with a penchant for polished user interfaces and developer tooling. An unusual combination of humanities training (B.A. in Russian and English) and long-term hands-on engineering gives him a communicative, design-aware approach to complex technical problems.
17 years of coding experience
20 years of employment as a software developer
B.A., Russian and English, B.A., Russian and English at The Ohio State University
A calendar component for the iPhone (the UI is designed to match MobileCal)
Role in this project:
Mobile Developer (iOS)
Contributions:86 commits in 2 years 11 months
Contributions summary:Keith's contributions primarily involved developing the user interface for a calendar component designed to mimic the MobileCal application. The user removed dependencies, added background images, implemented the display of day numbers and selected highlights, and adjusted the tile sizes and appearance. They also fixed UI bugs and implemented the functionality to show and select a date.
Contributions summary:Keith made significant contributions to the Factor programming language project by implementing and refining UI components. They focused on improving the Factor Browser's user interface, including syntax highlighting, style enhancements, and layout adjustments. The user also addressed color theming and layout improvements, and updated the help browser to display the navigation as breadcrumbs and enhance the display of stack effects in the documentation.
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.
Request Free Trial
Keith Lazuka - Member Of Technical Staff at Anthropic