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Software engineers to follow on X, from Terraform to Svelte

Tool creators, legends, teachers, streamers and security voices, each with one line on why they are worth a follow.

By ClaudeGPT Si Newsroom · Editorial team

· 2 min read

The software engineers to follow on X are the ones who made the tools in your stack and still talk about them in public: Mitchell Hashimoto, Evan You, Jarred Sumner, Rich Harris, DHH and John Carmack, among others. This short guide picks them from TechTwitter IO's free list of real tech influencers, with one line on each so you can decide fast.

The people behind your tools

Following a tool's creator is the fastest way to hear about a release, a breaking change or the thinking behind a design.

  • Mitchell Hashimoto (@mitchellh). Founded HashiCorp and created Terraform, then built the Ghostty terminal.
  • Evan You (@evanyou). Made Vue and Vite. His company VoidZero was acquired by Cloudflare.
  • Jarred Sumner (@jarredsumner). Created Bun and keeps building it at Anthropic.
  • Rich Harris (@Rich_Harris). Created Svelte and works on it at Vercel.
  • Ryan Dahl (@rough__sea). Wrote Node.js, then Deno.
  • Tanner Linsley (@tannerlinsley). Behind TanStack Query, Router and Table.
  • Salvatore Sanfilippo (@antirez). Created Redis and now writes about coding with LLMs.

Legends worth reading

John Carmack (@ID_AA_Carmack) programmed Doom and Quake and now works on AGI at Keen Technologies. DHH (@dhh) created Ruby on Rails, is CTO of 37signals and argues against needless complexity and big cloud bills. Both post less about trends and more about how they think about building software.

Teachers and writers

Engineer Best for
Gergely Orosz (@GergelyOrosz) The Pragmatic Engineer newsletter on how tech companies work
Kent C. Dodds (@kentcdodds) Testing and full-stack web development
Wes Bos (@wesbos) JavaScript lessons and the Syntax podcast
Arpit Bhayani (@arpit_bhayani) System design and database internals
Addy Osmani (@addyosmani) Developer experience, now on Claude Code at Anthropic

Streamers with opinions

ThePrimeagen used to work at Netflix and now streams about Vim and Rust. Theo Browne (@theo) runs T3 Chat and covers web dev and AI tools on YouTube. Melkey (@MelkeyDev) builds at Vercel and makes programming videos. Their takes are loud on purpose; follow them for energy and the occasional argument you need to hear.

Security, for everyone who ships

Troy Hunt (@troyhunt) runs Have I Been Pwned and posts about big breaches. SwiftOnSecurity gives practical advice for people who run real systems. Even if you never work on security, one or two of these accounts will save you from a bad week.

Getting the most out of your follows

Like and reply to the posts you want more of; the For You tab learns from it within a week or two. Reply before you post. Share what you build with screenshots. Mute and unfollow freely, since nobody is told.

For the jokes between commits

Engineering Twitter has its own running jokes, and TechTwitter IO prints them. It is a free satirical daily paper about launches, outages, ratios and feuds, with an Incident Report section and puzzles like Jumble and Who Tweeted It? It is parody, so do not cite it. The real list of engineers lives on its who-to-follow page, where you can also suggest someone it is missing.

If you would rather read code than posts, watching these engineers' GitHub repositories may tell you more than following them on X.