Best System Architecture Newsletters in 2026

NewsletterFIT tracks 3 newsletters that cover System architecture as a primary topic, all with posts in the last 90 days. By publicly shown subscriber count, the largest are ByteByteGo Newsletter (1M) and BuildML (16K). Brands detected sponsoring these newsletters recently include CodeAF, Matic and WorkOS.

Updated Nov 4, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    ByteByteGo Newsletter1M subscribers

    SubstackSeveral times a week · last post 4 days ago

    Explain complex systems with simple terms, from the authors of the best-selling system design book series. Join over 1,000,000 friendly readers.

    Likely audience: ML engineers

    Sponsors detected: Matic, WorkOS, CodeAF

  2. 2
    BuildML16K subscribers

    SubstackMonthly or less · last post 16 days ago

    From recent posts: BuildML publishes technical articles on machine learning system design, RAG architecture, and portfolio building for data science professionals. The content focuses on interview preparation, practical project examples…

    Likely audience: Career Changers

  3. 3
    Jot Lore: Inspiring Innovation—

    LinkedInEvery two weeks · last post 14 days ago

    Inspiring innovation and simplifying tech for success. Discover insights practical tips, and transformative solutions.

    Likely audience: ML engineers

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