Phrasing | https://phrasing.app | EU Remote | Co-founder

Phrasing is the best way to learn and maintain multiple languages [1]. With support for over 120 languages, science-based methodologies, and a beautiful custom built UI, Phrasing make’s it easier than ever to learn a language… or 10.

Phrasing is built with Elixir on the backend (lots of Broadway, FLAME, Nx and Scholar) with a ClojureScript front end. Everything is stored in a single Postgres database hosted with neon. I’m moving some code to a commons library, with the end goal of using Clojure as an isomorphic solution to run the same code on web, server, and mobile (<1% of the codebase, just the critical logic). The front-end is moving from Reagent+React to HSX+Preact+Preact Signals, although that’s going to be a long and slow migration.

Phrasing is my attempt to do something different [2], from both a product and a business perspective. No investments, no hyper scaling, no growth hacking — just tripling down on building the most effective application to learn a language.

Phrasing is launched, live, has some DAUs and MRR. However, long ago I’ve reached the limit of what one developer can do. I’m looking for someone to

- come on board and take over the entire Elixir codebase - watch the Broadway Pipelines, and not sleep if there are any failing checkpoints - optimize request times, reduce database pressure, and speed up extraction times - work with me to restructure things to reduce costs/complexity - work towards training novel embedding spaces, custom classic ML/NLP models, and long term algorithmic improvements to the SRS [3] - see this as a fun challenge, and have enough ownership of the product that I can focus on some user facing developments [4] Please note, I’m not looking to hire an engineer to work a 9-5, and I am in no hurry to hire someone soon. I’m looking for a co-founder to come on board, take ownership and accelerate the product. The product is built, working, and growing organically. While there is some MRR, the position will be rev-share & equity focused until the business produces enough for full salaries.

To apply, please send an introduction hn at phrasing dot app. I will not be interviewing until the 12th of September, and no priority will be given to earlier or later applicants, so there is no rush. A sincere, well-written introduction is your best way to get an interview. No experience is required for this role, so long as you’re competent and hungry.

[1] https://phrasing.app/blog/multiple-languages [2] https://phrasing.app/blog/mission [3] https://phrasing.app/blog/humane-srs [4] https://phrasing.app/blog/a-dream-of-three-vector-spaces [5] https://x.com/barrelltech [6] https://reddit.com/u/phrasingapp

Coachcube | https://coachcube.ai | Mid to Senior ML Engineer and CV Engineer | Onsite London

Coachcube is new gym product providing a virtual PT service. We have an experienced senior leadership team and are building a hardware/software product using digital motors, camera vision and ML to design a next-generation weight-lifting product. If you like fitness and ML, reach out for a chat!

The ideal candidate:

- Can ship quickly - Highly inquisitive but also motivated to deliver - Comfortable moving across domains - Understands fitness/weight lifting - Up for a challenge Tech Stack: Go, AWS, Unity, Python, Claude Code

email: Email is hidden

Stream | Multiple Positions | Amsterdam (NL), Skopje (Macedonia) | Boulder, CO (US) | Toronto (Canada)) | Remote possible | Full Time | Visa Sponsorship

We are consistently hiring backend engineers ranging from Senior level to Staff / Lead / Director / Principal Go engineers.

If you have experience with a different tech stack, we offer a 10-week onboarding program to train you in Go, scaling and other key topics: https://tinyurl.com/2u5x9f9w

We’re also hiring for:

* Staff Python Engineer – Open Source Video/Voice AI Library

* Senior React Native SDK Engineer

* Staff Product Designer

* WebRTC SFU Engineer

* Director of Information Security

At Stream, we use Go for our video SFU, chat API, Moderation and Feeds, serving high traffic from major apps like Strava, Nextdoor, Patreon, and Midjourney. Our tech stack: Go, CockroachDB, RocksDB, WebRTC, Raft, and Redis.

Why Join Stream?

* High scale/ difficult engineering, we have customers using our products with millions of users

* Default alive. Startup growth opportunity with healthy revenue

* All managers are hands-on and capable engineers

* Edge network of servers around the world

* Great opportunity to learn and grow

Remote: our roles are primarily NL, US, or CA-based (hybrid), but exemptions for remote work within the EU may apply to specific cases.

Visa Sponsorship: Available for the Netherlands

Apply here: https://jobs.ashbyhq.com/stream?utm_source=5rrpvobp3r

V7 | www.v7labs.com | London or New York | Hybrid

_______

Growth Hacker - https://bit.ly/41wpdmh

* You're not just a growth marketer. You’re a full-stack creative operator. * You’ve probably done things like:

* Run playbooks that didn’t exist yet * Gotten products featured on Times Square billboards and Reddit threads * Built shareable mini-tools that turned into full-on acquisition channels * Sent physical mailers that turned into million-dollar pipeline * Landed your company on 10+ podcasts in a quarter * Have taken a product from 0–1m+ MAUs or scaled growth to $5m–$20m ARR * Built acquisition loops from scratch * Know how to make technical content go viral * Are a creative thinker with deep operational range * Can juggle many ideas, experiments, and channels at once

____________

AI Engineer (Building Agents Product) - https://bit.ly/3hwgici

* Build LLM agents for document understanding, search, and image recognition that go from prototype to production fast

* Write clean, tested Python code that scales—no research papers, just working AI features

* Collaborate with AI and product teams to iterate on solutions that customers actually use

JustWatch | Frontend Engineer (Junior–Mid) | Berlin | Full-time | HYBRID (2–3 days office, rest remote)

At JustWatch, we’re focus on being the best at marketing in the global entertainment industry. Our Martech team develops internal tools that help us achieve that goal, creating automations to help our own campaign managers inside the company.

You’ll work on our Business Dashboard (Next.js), leading projects end-to-end while collaborating with designers, stakeholders, and other dev teams. We’re looking for a frontend engineer who enjoys solving problems, thrives on collaboration and focus on bringing value to its users. In return, we offer a culture of trust and ownership, where you can make decisions without bureaucracy and really focus on the value you are delivering. Based in Berlin, we have an awesome office that you don’t need to go, but you will want to.

Our tech stack: Next, Typescript, Tailwind

https://www.justwatch.com/talent/jobs/tech/junior-mid-level-...

Rappo | https://buildrappo.com | Founding Applied AI Engineer | Remote or Onsite SF

Hi, we have been working on a personal assistant for knowledge professionals. A lot of challenges around building an advanced RAG, improving reasoning, and custom models

Learn more about the role: https://wellfound.com/jobs/3382533-senior-ai-ml-engineer or email Email is hidden

PS: I am a solo founder, and we are generous with equity

Y Combinator (yes, the people who run this site) | Full stack web and AI | San Francisco | Onsite | Fulltime

YC itself hires software engineers from time to time. Many people don't know that YC has a small but very important software team. We run several websites - not just this one, but also workatastartup.com (the main way YC companies hire), a social network for YC founders, and the core infrastructure that YC itself runs on.

Recently, we've been spending most of our time building our own AI agents. Over the last year, YC has mostly funded AI agent companies, so it's been cool to go really deep building our own AI agents too. We're building agents to automate every aspect of what we do, and pushing the limits of what's possible with the current models to do it.

An unusual aspect of being on the YC software team is that you'll get full access to the YC program, founders and partners. The YC batch runs in the same building we work out of, so there are talks with famous founders happening most nights, right downstairs in our building. If you want to start a startup someday, working at YC would be an excellent jumping off point - several YC companies have come from team members who decided to start their own company.

YC works fully in-person in SF. We're happy to help you move here if you're in the US already. Unfortunately we can't sponsor new visas, but we're happy to transfer existing ones.

YC offers highly competitive compensation and benefits.

You can apply online (https://www.ycombinator.com/careers) or just email me at Email is hidden

We are LIFEPOWR! Antwerp (Belgium) | Full-time | Remote (Europe) or hybrid (Antwerp) | https://www.lifepowr.io/en/about-us/career

A young and dynamic company, active in energy transition and scaling up!

We are looking for a OPS Application & AI Developer

Your role will be:

-Customizing and maintaining our ERP platform hosted on Odoo.sh

-Developing custom modules, integrating third-party tools, optimizing workflows

-Supporting our internal teams with technical solutions

Send your back-end development expertise and your understanding of Odoo.sh!

Make sure to send your resume, GitHub profile (if available), and examples of past Odoo customizations to Email is hidden, including “OPS Application & AI Developer - Hacker news” in the subject line.

Undetect.io | Counter-Security / Reverse Engineer | Full Time / Part Time | Remote, Global

We're looking for a TypeScript engineer to join our team with a tight focus on stealth browser automation tools and RE / adversary intelligence pipelines.

You should have:

• Strong TypeScript, Node.js, CDP (Chrome Devtools Protocol) experience.

• Interest in C++ and Chromium internals.

• Experience evading or analyzing anti-bot and WAF systems.

• Practical experience reverse engineering & deobfuscation of heavily obfuscated / defended JavaScript.

• Intermediate / advanced understanding of browser fingerprinting and distributed proxy systems (or eagerness to learn).

• Able to provide examples of clean, maintainable code.

• Familiarity with Docker, Cloudflare Workers, and basic devops.

We're a lean, fast-moving team working on hard problems with real-world impact for enterprise clients, including many Y-Combinator success stories.

Email us: Email is hidden

Kaedim | Software Engineer, Machine Learning Engineer, Customer Support Engineer, Product Manager, Founding Recruiter | Onsite | Full-time | San Francisco, Singapore, London | US & UK Sponsorship Available Kaedim is an AI startup building ML algorithms that turn images into digital 3d models. We are a group of ~10 looking to grow the team to help streamline 3d content creation for 3d artists and are already working with 1 of the top 10 games of all time! Using our AI and in-house art team, we have the most accurate, game-ready 2d → 3d asset generation pipeline. Currently, we are offering a 10x speed up to 3D asset creation pipelines of 200+ game developers and we are working with partners like Voodoo, Upland, Azra Games. Check out our demo here: https://www.youtube.com/watch?v=tlqwfg1dlb0

Job descriptions and application link: https://join-kaedim.notion.site/

Tech Stack:

Product (web app, API): React, MySQL, NodeJS, Python, AWS

Machine Learning: Python, PyTorch, AWS