Slab | Engineering | Remote (Worldwide) | Full-time

At Slab (https://slab.com), we believe that knowledge is the foundation of any organization's success. When a team's collective knowledge is more accessible, that team's potential is limitless.

Our product helps teams easily create, organize, and discover knowledge across the entire company, from non-technical to tech-savvy. Each day, thousands of customers rely on Slab across their entire workforces, including Asana, Benchling, and Fivetran.

You'd be joining a team of thoughtful and experienced engineers, distributed worldwide across North America, Europe, and Asia. Stack: React, GraphQL, Elixir, Phoenix, Kubernetes

Take a look at our open roles:

- Sr. Frontend Engineer - https://jobs.ashbyhq.com/slab/d3dff44e-e8f7-4407-8eae-1b491f...

A couple of technical posts:

- Why we use Elixir: https://elixir-lang.org/blog/2020/11/17/real-time-collaborat...

- Quill 2.0: https://slab.com/blog/announcing-quill-2-0/

Vaayu | Remote (European Timezones) | Full-Time | https://www.vaayu.tech/

At Vaayu, we're on a mission to fight climate change by helping e-commerce retailers measure and reduce their carbon emissions. E-commerce has a significant climate impact, and calculating carbon manually can be time-consuming and costly. Our goal is to make carbon analytics accessible to every online retailer, empowering them to take control of their environmental footprint.

Our automated software is already trusted by sustainability leaders such as Klarna, Wunderman Thompson, Vinted, Ace & Tate, Adevinta or New Balance, linking up with shop platforms to deliver the tools necessary for retailers to take charge of their environmental footprint.

We are a distributed company based in Berlin, with an international and diverse team throughout Europe.

We are looking for a mid-level Golang engineer to join our team. Experience working with large existing codebases is a plus.

If you’re an innovator and want to work in a purpose-driven startup, we’d love to hear from you! To apply, email me at Email is hidden, please mention HN in the subject.

PostHog | Full-Time | product engineers and ex technical founder engineers | REMOTE (all remote) | Hiring GMT-8 to GMT+1 PostHog helps engineers build better products by combining product analytics, feature flags, session replay.

* open source, building a dev tool. We have a public handbook (posthog.com/handbook) if you want to learn how we work, pay and more in complete detail.

* we are a real business... at $14M ARR / profitability in sight / lots of capital / grew revenue 4x last year

* we are growing through more autonomy and transparency not through process.

* we have a ton of scale and a bunch of super interesting technical problems to solve

* we're building 20 more products over the next couple of years, so you could end up building one of those

* we need: product engineers and ex technical founders to build products posthog.com/careers

Queueco | HFT | London, UK | Full time on-site | Visa sponsor

We are a proprietary trading firm operating in conventional as well as cutting-edge alternative markets. Our strategies run 24/7 without manual intervention powered by low-latency infrastructure and the latest machine learning techniques. We're a meritocratic and lean team of highly-motivated scientists and developers and as such value technical ability more than politics: what matters is how good your code is, not how well you sell yourself. We spend no time dealing with clients, customers or investors and instead focus on growing our business by building better technology.

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If you are a talented developer who likes to work on low latency systems please get in touch. We are also happy to sponsor exceptional talent.

You will be part of a small development team that shares the responsibility of the whole trading stack. As you own the code, deployment and all tooling, you can rapidly and safely iterate on changes to the trading software. As a result we deploy many times a day.

Developers collaborate directly with traders and researchers, allowing for immediate reaction to market changes and fast iteration of live trading engines

Send us a message at:

Email is hidden

or apply directly at:

https://apply.workable.com/queueco/j/6926a83dee/

https://kombo.dev (YC S22) | Product-minded Engineers | Berlin | In-office (with flexibility) | 60k-100k

We are a small (~25), fast-growing (we went from $1M -> $2.5M ARR in the last 6-months) team building a unified API for HR systems. Right now, we are struggling to keep up with customer demand and desperately need to add more engineering power.

We are hiring multiple (product-minded) engineers and support/solution engineers of all experience levels. Jobs are here: https://jobs.ashbyhq.com/kombo

Feel free to contact me at Email is hidden - I'm the CTO and leading the hiring process!

Polars | Database Engineer (Rust) | Amsterdam | ONSITE | Fulltime | https://hiring.pola.rs/o/database-engineer

Polars is the next generation of DataFrames. We don’t take the easy route and build from the ground up, controlling every element allows us to create a superior solution. Our open-source implementation is one of the fastest growing data projects on GitHub and has over 26 thousand stars and 39 million downloads to date.

We believe data processing should be a seamless experience from working locally on your development machine to an enterprise production environment. There should be one framework to learn for data practitioners, removing the need for rewriting code when going to production.

Phrasing | CTO | Europe, REMOTE | https://phrasing.app

Phrasing is a language learning application that actually works.

We have a working product, a few paying users, and a bunch of ideas. Currently we're just smoothing out all the bugs before a big launch this fall.

Currently it's a two person team - one engineer and one designer. Looking for another engineer to join in a co-founding capacity and help us scale.

Lots of cool tech:

- Database: Postgres

- Server: Elixir (Phoenix, FLAME, Nx, Scholar, Axon, Bumblebee, Broadway)

- Client: ClojureScript (Reagent, Sync engine, Local-first, RTC)

More information about the role here: https://phrasing.app/dream-team

SafetyKit | AI Product Engineer | San Francisco, CA | ONSITE | Full-time | $150K - $220K + Equity | https://safetykit.com

We moderate content for payment processors and large marketplaces, covering any content policy you can think of. From IP infringement (is this cat wearing a Burberry-patterned vest?) to endangered species detection, chargeback risk, and hyper-detailed custom policies for every client. Users include Substack, Upwork, Faire, Character.ai, and Eventbrite.

Your role: Application/Product engineering in Postgres/Typescript/AWS. We need web scrapers, document ingestors, LLM eval tools, and more, and they all need to be fast and reliable.

SafetyKit is started by repeat founders, YC-backed, and growing fast.

https://www.ycombinator.com/companies/safetykit/jobs

Quaderno | Senior Support Engineer (Ruby on Rails) | UTC-3 to UTC+2 | Remote | Contractor

Quaderno is an automated tax compliance software that calculates and tracks sales tax, VAT and GST for online businesses.

We are looking for a Support Engineer to join our team who will be responsible for troubleshooting customer facing support tickets and creating internal tools to facilitate our daily work.

If your have +5 years of experience in Ruby on Rails, love giving support to non-technical users and are located in a UTC-2 to UTC+3 timezone, we want to hear from you.

Check out the full position description and apply here: https://quaderno.homerun.co/senior-support-engineer-ruby-on-...

Lancom Systems | Senior Data Platform Engineer | Karlsruhe,Würselen,Remote(EU - Germany, Spain, Austria, Belgium, Netherlands) | Full-time | https://www.lancom-systems.com

Lancom Systems provides cloud-managed networking solutions.

My team is responsible for processing metrics and logs sent by the devices. Our stack consists of ClickHouse, Kafka, K8s, Helm, Argo, Kotlin and Vert.x (and some Spring).

We are looking for a data platform engineer that is comfortable evolving SQL schemas, optimizing our deployments and extending our data pipeline. Previous experience in all technologies is not required, but you should have a high interest in working with data-intensive applications and a willingness to learn.

Interested? Email me at jonas.vonandrian … lancom.de