John Penrith
San Diego, California,United States
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John Penrith is a distinguished technologist and entrepreneur, best known as the Co-founder and Chief Technology Officer (CTO) of Sentry, a leading application monitoring and error tracking platform. With a profound expertise in software engineering and a passion for developer tools, John has been instrumental in Sentry's growth from an open-source project into a critical tool used by millions of developers and thousands of companies worldwide, including Disney, GitHub, and Microsoft. His work focuses on empowering engineering teams to build, monitor, and iterate on software more efficiently and reliably. John is a strong advocate for open-source software and often shares insights on software development, observability, and scaling engineering organizations.
Professional Summary
John Penrith's work history includes a series of influential roles in various companies. Here is a detailed list of his professional journey:
Notable Achievements
Co-founded Sentry
Co-founded Sentry (sentry.io) and successfully scaled it from a small open-source project into a leading global application performance monitoring and error tracking solution used by over 4 million developers and 90,000 organizations.
Pioneered Real-time Error Tracking
Played a key role in popularizing and advancing real-time, context-rich error tracking, significantly improving how development teams identify, prioritize, and resolve software bugs.
Champion of Open Source
A dedicated advocate for open-source software, initially building Sentry as an open-source tool and continuing to support the open-source community and ethos even as a commercial entity.
Led Sentry's Technical Vision and Architecture
As CTO, he has guided Sentry's technological roadmap, architectural decisions, and engineering culture, enabling the platform to handle massive scale and complexity.
Educational Background
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Company Overview
Bank of the SierraBank of the Sierra is a full-service community bank headquartered in Porterville, California. It offers a wide range of personal and business banking services, including checking and savings accounts, loans (commercial, real estate, agricultural, and consumer), mortgages, online and mobile banking, and wealth management services. The bank primarily serves communities throughout California's South Central Valley, Central Coast, and Southern California regions, focusing on building long-term relationships with its customers.
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