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Jon Gjengset

Jon Gjengset✓ Add us as a preferred source on Google

Mastodon @jonhoo@fosstodon.org
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Make a deal with Jon Gjengset

🔒 Paid proposals held safely in escrow — released only when the work's approved.

📣Sponsored postOne disclosed post (toot) with your link and message. $26→ 🧵Sponsored threadA multi-post explainer or story — the fediverse rewards depth over one-liners. $65→ 📦Product seeding / honest reviewSend me your product — I post a disclosed, honest take. Authenticity is the only ad this audience tolerates. $34→ 📌Pinned sponsored postA disclosed post pinned to the top of my profile for the month. $78/mo→ 🔗Profile link (bio field)Your link in one of my profile metadata fields for the month — native and low-key. $39/mo→ 🔁Boost packageI boost (repost) your account's toots through the month — distribution with zero content lift. $52/mo→ 🏛️Instance / community sponsorshipSponsor the server I run — a sponsor line in the About/rules and a welcome shout. A goodwill buy that keeps our community running. $65/mo→ 🤝Mutual boost collabWe boost each other across instances — a value swap between communities. Swap or paid→ 🎬UGC HireBranded content for your own channels & ads from $50→ 🎙️Podcast guest spotInvite Jon Gjengset onto your podcast (~45 min, remote) $37→ 📞1:1 ConsultPaid video call — advice, coaching or Q&A $75/hr→

Every booking is a normal escrow-protected deal.

Followers
4.3K
Account age
6 yrs
🎁 Free analysisfor Jon Gjengset
🕵️Fake Followers CheckReal-audience % & bot risk→ 📊Engagement rateBenchmarked vs. peers→ 💰What they chargeFair sponsored-post price→

Known for

In January, Anish, Jose, and I returned to MIT CSAIL to teach Missing Semester, a class on topics we've found missing from most CS programs—tools and techniques that everyone should know, like Bash, Git, CI/CD, and AI tools. Today, just like in previous years, we’re releasing the course for free online! https://missing.csail.mit.edu56 views In January, Anish, Jose, and I returned to MIT CSAIL to teach Missing Semester, a class on topics we've found missing from most CS programs—tools and techniques that everyone should know, like Bash, Git, CI/CD, and AI tools. Today, just like in previous years, we’re releasing the course for free online! https://missing.csail.mit.edu

📊 Post engagement

Recent posts · likes + reposts
Jan 2latest
23
Avg engagement / post
13–26
Typical post (engagement)
0.5%
Engagement vs followers
69/100
Consistent reach
Mar 2020
On Mastodon since
Half of recent posts land between 13 and 26 likes + reposts (median 16) — a dependable floor a sponsored post can count on.

🔥 Top post: In January, Anish, Jose, and I returned to MIT CSAIL to teach Mi · 56 likes + reposts

📊 Activity & format

Posting cadence
0.42 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 11 text · 1 image · 0 video.
Follower / following
110×
Follows 39 back. A strong ratio — an audience that follows them, not a follow-for-follow network.

Recent posts

View on Mastodon ↗
🔥 Top post In January, Anish, Jose, and I returned to MIT CSAIL to teach Missing Semester, a class on topics we've found missing from most CS programs—tools and techniques that everyone should know, like Bash, Git, CI/CD, and AI tools. Today, just like in previous years, we’re releasing th… ★ 56
Recording of yesterday's open source maintenance stream is now up! We got through left-right (a concurrency primitive), HdrHistogram (a fun data structure), rust-imap (you guessed it), and inferno (the Rust port of flamegraph) in about 5 h… ★ 16 We haven't done an open source maintenance stream in a while, and by now I have a few open open-source issues and pull requests I'm behind on, so let's rectify that! These span projects like concurrency primitives, data structures, and per… ★ 26 Recording of yesterday's stream implementing a WAV noise file generator in #rust is now up on YouTube! We managed to get white, pink, brownian, blue, violet, and grey (psychoacoustic!) noise all implemented, so I'll count that as a success… ★ 26 A few weeks ago I was interviewed by Daniel from Rock the JVM, a channel primarily for (perhaps unsurprisingly) folks working in the JVM ecosystem. It was really fun to chat about Rust with someone not already deeply embedded in it, and th… ★ 10 For the past few streams, we've been going pretty high level, especially with the aid of LLMs. Not this time! On Friday at 4pm UTC (https://everytimezone.com/s/2ac07a7b), we're going all the way down to "what bits go where", with honest ha… ★ 35 Back in January I gave a talk at Jane Street with the title "Are Mutexes Slow?". I also gave a lightning version of the same talk at Rustikon last week. The longer Jane Street version is now up on YouTube for anyone interested in some of t… ★ 52 Sadly, I can't make it to the inaugural TokioConf happening in Portland April 20th - 22nd; I'll be en route to the Blood on the Clocktower convention Final3Con in DC instead 😈 But, I do have a 15% discount code I've been told to hand out t… ★ 5 Recording of our "port avro-tools' Java-based idl-to-json tool to Rust using an LLM" adventure is now up on YouTube! We got to an initial working implementation in ~4hrs (though still with bugs to iron out in future iterations), which isn'… ★ 16 As for the LLM bit — I think this is an ideal powercoding (LLM + code review) use-case since we a) have access to the existing Java code and b) there's an infinite supply of trusted tests (the same IDL passed to the Java tool should produc… ★ 8 Friday 9a UTC (https://everytimezone.com/s/5903cd46) sounds like a good time for a stream! This time, we'll try to port Avro's IDL-to-JSON tool from Java to Rust (with LLM help), leveraging the fact that their grammar is written using ANTL… ★ 13 The recording of the new year's Q&A stream is now up, with all the questions annotated for easy skipping! https://youtu.be/S_zp82fYrGw ★ 16

🐘 Community & instance

Home server
fosstodon.org
A open-source software server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Mar 2020
An OG fediverse account from Mastodon's early years — a long, established presence.

💡 Facts

🗓️Joined Mastodon in 2020 — 6 years ago.
👁️Averages 23 views per post.
📤Posts about 0.4× per week.

🕵️ Fake follower check

Estimated
58/100
Fair Credibility score
81%
Real Real audience
Low Fake-follower risk
High Data confidence
  • Est. 81% real, active audience · Low fake-follower risk.
  • Low engagement (~0.5% of followers engage each post) — a sign of an inflated or inactive audience.
  • Organic base — far more followers than accounts it follows.
  • Verified account.
  • Established account (6+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Rust live-coder and OSS tinkerer who loves teaching. I try to maintain a high SNR. Wrote Rust for Rustaceans. At Helsing.ai. Formerly AWS. Co-founded ReadySet. he/him/they

🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

Petra van Cronenburg Petra van Cronenburg 16% Whatyawannasee 🏳️‍🌈🇫🇷 Whatyawannasee 🏳️‍🌈🇫🇷 15% hide104🐘🇯🇵 hide104🐘🇯🇵 13% Zana@Slutwife Zana@Slutwife 12% Robert W. Gehl Robert W. Gehl 12% Bill Amend Bill Amend 10%

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Mastodon ＋
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Bill Amend ✓
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Frequently asked questions

How much does Jon Gjengset charge for a sponsorship?
Jon Gjengset hasn't published fixed prices yet. Send a proposal through SocialDB and agree terms directly — your payment is held in escrow until the work is approved.
How do I contact Jon Gjengset for a brand deal or collaboration?
Send a paid deal or collab request right here on SocialDB — we notify Jon Gjengset, and once they accept, your payment is held safely in escrow and released when the work is approved. You don't need to track down an email.
How many followers does Jon Gjengset have?
Jon Gjengset has 4,288 followers on Mastodon.

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