# Mihai Parparita

> Mihai Parparita is a Sierra founding engineer and platform engineer whose career connects Google Reader, Chrome Apps, Quip, Slack, Tailscale, and the internal AI infrastructure at Sierra. Alongside that work, his long-running personal projects - particularly Infinite Mac - preserve old computing experiences by making them usable on the modern web.

- **Role:** Founding Engineer and Platform Engineer at Sierra
- **Organizations:** Sierra, Tailscale, Slack, Quip, Salesforce, Google, Princeton University
- **Education:** BSE in Computer Science, magna cum laude, Princeton University
- **Known for:** Founding member and frontend tech lead of Google Reader, where he implemented its redesigned interface and features including Trends, product integrations and PubSubHubbub support., Reduced Google Reader backend CPU and storage lookups by 50% and cut frontend startup time by 45%, according to his resume., Became a WebKit reviewer while working on Chrome and led the team that launched packaged Chrome Apps at Google I/O 2012.

## Career timeline

- **2004** — Graduated from Princeton University with a BSE in Computer Science, magna cum laude, and joined Google.
- **2005-2010** — Worked on Google Reader as a founding team member and, from 2006, frontend tech lead; built major interface, performance and integration features.
- **2010-2012** — Worked on Chrome and WebKit quality, then served as tech lead for Chrome Apps and Extensions.
- **2012-2022** — Joined Quip's initial engineering team; led or helped build editing, comments, spreadsheets, tasks, presentations and client infrastructure. Later prototyped the Quip technology behind Slack Canvas before leaving Quip/Slack/Salesforce in April 2022.
- **2022-2023** — Worked as a client engineer at Tailscale on fast account switching, Apple Shortcuts, binary-size reduction, platform internals and battery instrumentation.
- **2023-present** — Joined Sierra at the beginning as a founding engineer; Sierra currently describes him as a platform engineer.
- **2025** — Published Sierra's Gardening Week engineering practice, describing a recurring interval for maintenance, tools, experiments and documentation.
- **2026** — Co-built and documented Sierra's MCP gateway, which grew to connect 45 services and reach 89% weekly employee usage by July.

## Achievements

- Founding member and frontend tech lead of Google Reader, where he implemented its redesigned interface and features including Trends, product integrations and PubSubHubbub support.
- Reduced Google Reader backend CPU and storage lookups by 50% and cut frontend startup time by 45%, according to his resume.
- Became a WebKit reviewer while working on Chrome and led the team that launched packaged Chrome Apps at Google I/O 2012.
- As an early Quip engineer, led initial implementations of comments, spreadsheets, tasks and presentations and helped move the client data model to React.
- Helped prototype the Quip-based collaborative editing surface that became Slack Canvas.
- Built Tailscale client features including fast user switching and Shortcuts support, and documented work on binary size and battery instrumentation.
- Created Infinite Mac, a browser-based collection that runs a broad range of classic Macintosh systems and software.
- Helped create Sierra's MCP gateway, connecting AI agents to 45 internal services and reaching 89% weekly employee adoption by July 2026.
- Helped establish Sierra's Gardening Week, an engineering practice devoted to maintenance, tooling, experiments and documentation.

## Latest updates

- **2026-07** — Published an account of building Sierra's MCP gateway. By then it connected agents to 45 services, reached 89% of employees weekly, and received nearly two-thirds of its commits from contributors outside the original two-person team.
- **2026-06** — Published Sky Feeder and Tweeter Feeder additions to his existing Masto Feeder workflow, allowing Bluesky, Twitter and Mastodon accounts to be followed from a feed reader.
- **2026-06** — Added a work-location mode to his personal Weather Text app for deciding how to dress for commutes between Cupertino and San Francisco.
- **2025-03** — Published Sierra's Gardening Week practice for recurring maintenance, infrastructure, experimentation and documentation work.

## Links

- Website: https://blog.persistent.info/
- LinkedIn: https://www.linkedin.com/in/mihai-parparita/
- Twitter/X: https://twitter.com/mihai
- GitHub: https://github.com/mihaip
- Bluesky: https://bsky.app/profile/persistent.info
- Facebook: https://www.facebook.com/mihai.parparita

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Profile page: https://yespress.io/mihai-parparita
Published by YesPress — https://yespress.io
Last updated: 2026-09-27