Hi Effecters!
Welcome back to This Week In Effect (TWIE) - your weekly update of the latest developments in the Effect community and ecosystem.
Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.
To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!
Recent major updates:
@effect/workflow - currently in alpha.
More upcoming features in Effect 4.0: we made it even simpler to connect apps to observability tools.
Effect has always worked well with OpenTelemetry. In Effect 4.0, we’re making it even easier to connect your app to the observability tools you already use. For example, adding a Prometheus-scrapable endpoint to your HTTP server now takes just one line of code:
StandardAST module, a standard, introspectable way to represent a schema without functions, will be part of Schema v4.
i have big plans for schema v4...
Here are all the technical changes from the past week.
Our upcoming Effect Vienna 🇦🇹 Meetup on December 18th will feature talks by Mattia Manzati and Sebastian Lorenz. Join the meetup!
Talks at the upcoming Effect Vienna Meetup 🇦🇹: → Error Handling & Effectful Programming in TypeScript with Effect by @MattiaManzati → Effect on the Frontend by @thefubhy Join us on December 18th at 18.30 ⤵️ luma.com/rc84shks
To stay updated about future events, visit our Effect Community Events calendar and subscribe for updates.
Take the effect pill → effect.institute
yes, we are already building a native Effect driver
effect-regex, a monorepo containing a regex processing CLI tool built with the Effect framework, alongside a Bun-based root workspace. Project by Paul Philp.
Maxwell Brown and Tim Smart were live on X and Twitch with ChEffect.
Working on ChEffect - A Local-First Meal Planning App written with Effect x.com/i/broadcasts/1…
ChEffect - Part 11: A Local-First App built w/ Effect & LiveStore is now on our YouTube Channel.
Don’t forget to listen to our Cause & Effect podcast hosted by Johannes Schickling and available on YouTube, X(Twitter), and audio platforms like Spotify and Apple Podcast.
This podcast highlights stories from software engineers and companies using Effect in production. Each episode explores their journey of adopting Effect, including the learning process, challenges faced, and the benefits of integrating Effect into their tech stack.
We’ve published our sixth episode with Louis Vichy, co-founder of OpenRouter, who joined Johannes Schickling and Michael Arnaldi to talk about OpenRouter’s TypeScript stack, their internal tooling powered by Effect, and the engineering challenges of scaling an AI platform processing trillions of tokens weekly.
More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:
14.ai: Founding engineer
Betalyra, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the #job-board channel on our Discord.
coteach.ai is looking for a Software Engineer – see the job posting in the #job-board channel on our Discord and DM Peter Edmonds for further info.
Embedded Insurance is hiring for a Senior Software Engineering position.
Expand.ai: Founding Engineer
Freckle.io is hiring Platform Engineers with experience in Effect.
Globe Commerce: Founding Product Engineer
Goblins is looking for a Product Founding Engineer. See the job posting in the #job-board channel on our Discord.
Heartbeat: Senior Software Engineer
Interfere: Founding Product Engineer and Founding AI Engineer
Introw: Staff Software Engineer
Magentus: GenAI Solutions Engineer
ManageSpace is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the #job-board channel on our Discord.
Margins: Product Engineer
Medbill.ai: Founding Software Engineers (full-stack and backend)
Microsub: TS Developer
Oneiro Solutions: Software Engineer - Core Team. Join Effect Discord and DM leighman for further info.
PhosPhor is hiring engineers experienced in Effect. You may also reach out to the Phosphor team on our Discord.
Platonic Systems: Remote Effect Engineers
Precurion looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the #job-board channel on our Discord.
Ressio: Senior full stack Engineer
Samsung Food: Full Stack Developer
Sellhub is looking for a Backend Engineer. See the job posting in the #job-board channel on our Discord.
Software Intelligence Works: Senior Full-Stack Engineer
spring.new, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the #job-board channel on our Discord.
Supermemory: Founding Backend / Infrastructure Engineer
Superwall: Full-stack Mobile Developer
Tranched: Full-stack Engineer Web3
Vitalize Care is hiring a full-stack engineer with Effect experience: Full-Stack Engineer
Wander is hiring Software Developers with experience in Effect.
Warp is hiring a Product Engineer
French-speaking startup team led by Stephan Le Dorze is looking for a freelancer to join them - see his LinkedIn post for more details.
Job opening for Japanese-speaking developers
Small SaaS team is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the #job-board channel on our Discord, DM jonpage for further info.
Stealth team looking for a software engineer with Effect experience – see the job posting in the #job-board channel on our Discord.
Stealth team that has already scaled their product to 50K daily active users in the last year, is looking for Effect Developers. DM wireless on X for more info.
Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.
The Effect Merch Store offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through Printful.
Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag & show your love for Effect in style! 🧢 effect.website/merch
That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.
Effect Community Team