MongoDB

What drives engagement

Smart avg engagement per post across every post in this window. Gray rows at the bottom are under the sample floor (23+ posts per category, 23+ per format) — too few posts to trust the average.

Best day: Wednesday. Best time block: 12am–3am UTC. Timing detail is in the Cadence chart above.

Best performing posts

• 2025-10-22 · Pete Johnson · Industry Insight1.6K eng. (1.3K likes · 120 comments · 190 shares)

  It appears that ChatGPT Atlas is storing functional, unencrypted oAuth tokens in a SQLite database with 644 file permissions. I am hardly a …

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• 2025-10-27 · Crystal Tang · Hiring / Recruiting472 eng. (415 likes · 34 comments · 23 shares)

  I'm hiring my first Ventures Intern! If you have a technical background and are passionate about ventures and startups, I'd love to meet you…

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• 2024-06-10 · Crystal Tang · Celebratory Announcement352 eng. (339 likes · 10 comments · 3 shares)

  Passwords!!!!! It’s finally out! I've been keeping this secret for a long time. I feel so lucky to have been at Apple at just the right time…

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• 2025-07-08 · Pete Johnson · Personal Story308 eng. (226 likes · 82 comments · 0 shares)

  I'm excited to share that I've joined MongoDB as a Field CTO with an emphasis on AI workloads and tooling. I'll have the pleasure of working…

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• 2026-02-19 · Pete Johnson · Industry Insight271 eng. (244 likes · 23 comments · 4 shares)

  OpenAI is closing a $100 billion funding round. But look at who's writing the checks: Amazon ($50B), SoftBank ($30B), Nvidia ($20B), Microso…

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Worst performing posts — settled posts only (published ≥7 days before the data edge)

• 2025-10-19 · Pete Johnson · Industry Insight0 eng. (0 likes · 0 comments · 0 shares)

  ICYMI or like a longer written form, here are some free Substack thoughts on ChatGPT Apps potential impact on user experience . . . https://…

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• 2024-12-12 · Crystal Tang · Celebratory Announcement1 eng. (1 likes · 0 comments · 0 shares)

  MongoDB is excited to partner with Stainless! They use AI to automatically generate and maintain client libraries for your API in multiple l…

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• 2025-07-23 · Pete Johnson · Product Update1 eng. (1 likes · 0 comments · 0 shares)

  This makes selecting chunk sizes much easier, loving this optimization

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• 2025-07-23 · Pete Johnson · Personal Story1 eng. (1 likes · 0 comments · 0 shares)

  A light meeting day had me complete the learning path: MongoDB Building AI Agents skill badge from MongoDB.

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• 2025-08-15 · Pete Johnson · Industry Insight1 eng. (1 likes · 0 comments · 0 shares)

  Love this diagram showing how flexible it makes embedding dimensions. No more re-embedding the entire dataset if you want to try smaller dim…

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