Composo 1 day ago
PostgreSQL Python React.js TypeScript

Composo | Founding Software Engineer | London, UK ONSITE |

https://composo.ai

Composo is on a mission to ensure that AI transforms our world effectively, rapidly, and safely. Our platform squashes the legal and reputational risk associated with shipping AI apps and improves the helpfulness of our customer’s AI agents.

We believe subject matter experts are critical to evaluating and improving AI applications. Our platform equips them a powerful evaluation toolkit in a no-code interface, while giving engineers the development freedom they need to ship their best code.

We’re looking for generalist full stack software engineers, building up to a team of 5 over the coming months. Stack is Python FastAPI on Postgres with React Typescript frontend.

Full listing here: https://composo.notion.site/careers-at-composo-decbf0cd01af4...

Send an email to Email is hidden with your CV and a note about why Composo excites you. I will reply to all applications sent in September that clearly aren’t from bots.

Onsite
Oxidian 1 day ago
GitLab

Oxidian | https://www.oxidian.com | Remote (UK/Ireland/EU)

We make sure public money is well invested by building software for governments. We're doing to government software services what challenger banks did to banking.

Our clients are mainly governmental research institutions - we're building tools for scientists to process & visualise data, HPC data processing libraries, web apps to make people's working lives easier, and DevOps pipelines.

Currently hiring: - a senior LLM chatbot developer with Mistral experience (Ireland/EU only) - a senior DevOps Engineer with Gitlab experience (UK/Ireland/EU only)

Remote
Cobalt.io 2 days ago

Cobalt.io | Data Engineering | US, UK, or Germany (Remote/Hybrid) | Full-time | https://cobalt.io

Cobalt helps secure leading companies (e.g. Dropbox, PagerDuty) by connecting them with on-demand pentesting experts. Our application brings both sides together to identify, triage and fix vulnerabilities. Ten years in and over 40K commits later, our technology has been battle tested by thousands of users and we’re still having fun. We’re a team of can-do people who care about craft, collaboration, and our customers.

If you enjoy making an impact, the Cobalt Engineering team is excited to hear from you. All applicants will need to be permitted to work in the US, UK, or Germany. If you're a level above or below, we can consider you for this role. >>

+ Senior Data Engineer (AI): https://boards.greenhouse.io/cobaltio/jobs/7460616002

Remote Full-time
Costa Security 2 days ago

Costa Security | Software Engineer / Networking | Bay Area / Chicago Preference (Open to Remote) | Full Time

We are Costa, and we make it easy to connect and secure thousands of computers across clouds, on the edge, and everywhere in between.

The future of the $500B, 2030 cyber industry is a unified platform. The big players are moving slowly, trying to integrate legacy services. Costa was built from the ground up to be that unifying platform.

Costa has a unique architecture that is already in path at some of the largest companies in the world.

We are still in stealth. We are backed by Silicon Valley VCs. We have taken companies from inception -> IPO before. And we are laser-focused on solving some of the hardest problems in network security.

Read the job descriptions and apply here: https://careers.costa.security/

Remote Full-time
Comity Inc. 2 days ago
Machine learning Ruby on Rails

Comity Inc. | Hybrid (NY, Chicago, or Bay Area) and REMOTE | We are expanding our team with several full-time roles:

- Machine Learning Engineering Manager

- Quantitative Researcher (FTRs)

- Power System Applications Engineer

We’re on a mission to improve the reliability, transparency, and efficiency of our energy systems, fostering a future with sustainable and abundant energy. We are leveraging statistical learning and convex optimization methods to build the financial rails of our future energy systems that will accelerate the deployment of clean energy resources.

Read the JDs and apply here: https://jobs.ashbyhq.com/comity

Remote Full-time
Hex 2 days ago

Hex | Full Stack Engineer - Visualization | Remote - US | https://hex.tech/

Hex is changing the way people work with data. Our platform makes analytics workflows more powerful, collaborative, and shareable. Hex solves key pain points with today's data and analytics tooling, and is loved by thousands of users all over the world for the beautiful UI, new superpowers, and boundless flexibility.

We are a tight-knit crew of engineers, designers, and data aficionados. Our roadmap is full of big ideas and little details, and we would love your help bringing them to life.

Hex has raised over $100m from great VCs and angels, giving us many years of runway and the ability to pay competitive salaries, offer great benefits, and provide meaningful equity.

We're looking to grow our team with a second full-time Visualization Engineer (in addition to me!) working on no-code tools for visualization. See https://hex.tech/careers/visualization-engineer/ for more details.

Remote Full-time
Supercede 2 days ago
CSS HTML Haskell JavaScript PostgreSQL Redis

Supercede | Haskell Programmer | ONSITE/HYBRID in London, UK | Full-Time

Supercede builds industry-leading risk placement and analytics software for the reinsurance industry. We favour asynchronous communication, and try to hire "managers of one". We don't do daily stand-ups. We don't count your hours. We don't work weekends. We support each other in working and learning. We prefer responsibility and autonomy, and eschew micromanagement.

## About the tech

Our core product is a monolithic web application written in ~180,000 lines of Haskell, predominantly with the Yesod framework.

In short: Haskell, Yesod, Nix, PostgreSQL, Redis, Hspec/QuickCheck/Hedgehog, Persistent/Esqueleto, HTML/CSS/JavaScript.

## About you

For this particular role, we are looking for someone based in London, who can come and work with us regularly in our lovely office at the top end of London Bridge (hybrid working is supported).

Technical proficiency aside, we need you to be self-motivated and be able to manage your own time. We get stuff done at a sustainable pace.

As most communication is asynchronous, you'll need to be an excellent communicator. This mostly means you need to think and write clearly, whether that's in code, or in English. We expect you to describe your approach to a given problem in writing before diving into an implementation, and you'll need to collaborate with colleagues on your design.

You'll need to be a good engineer. We aren't looking for cathedral architects or type-system astronauts. We need small, simple, robust design. It's always better if you can make our project smaller, faster to compile, and easier to maintain so more junior colleagues remain effective.

On this team we are kind. We're kind to each other socially, and we're kind when reviewing and collaborating on work. We're diverse and multicultural, and respectful of each other's background. You'll need to be kind.

If you're interested in working with us, please write to me at Email is hidden.

Onsite Full-time
Trunk 2 days ago
AWS C++ GitHub Grafana Kubernetes Next.js Node.js Prometheus React.js Redux TypeScript gRPC

Trunk | https://trunk.io | Senior Data Engineer / DevRel Engineer| Full-Time | Hybrid SF or Remote US or Canada

Trunk is an a16z funded dev tools startup, redefining software development at scale. We aim to solve problems that developers hate by bringing the tools usually built in-house at the best engineering orgs to every development team. We've built three products so far and have plans for more:

* Code Quality: a universal linter/formatter, available as a CLI, VSCode extension, and CI check; * Merge Queue: a merge queue, to ensure that PRs are tested in order before they're merged; and * CI Analytics: detects, quarantines, and eliminates flaky tests from your code base. Prevents flakey tests from producing noise and blocking CI. * Flaky Tests: Detect and eliminate Flaky Tests. In 2022, we raised a $25M Series A led by Initialized Capital (Garry Tan) and a16z (Peter Levine)

Our tech stack: * Frontend: Typescript, React, Redux, Next.js * Backend: Typescript, Node, AWS, CDK, k8s, gRPC * Observability: Prometheus, Grafana, Kiali, Jaeger * CLI: C++20, Bazel * VSCode Extension: Typescript * CI/CD: GitHub Actions * General: GitHub, Slack, Linear, Slite

Unlimited PTO (and we all actually take PTO), competitive salary and equity packages! Please apply here: https://trunk.io/jobs

Remote Full-time
Pave.dev 2 days ago
Machine learning

Pave.dev | Data Scientist | Data Analyst | ML Engineer | Remote (US) | Full-time

I’m the Director of Engineering at Pave.dev, a rapidly growing startup revolutionizing financial access for 100M+ underserved consumers and small businesses through AI-powered Cashflow Analytics and Scores.

- If you're an ML Engineer passionate about building end-to-end, scalable machine learning systems, apply here: https://wellfound.com/l/2atuvk

- If you’re a Data Scientist passionate about cutting-edge credit risk modeling, apply here: https://wellfound.com/l/2aqff9

- If you’re a Data Analyst passionate about conducting analysis on massive and diverse datasets, apply here: https://wellfound.com/l/2zjxjp

Let us know you found us on HN when you apply!

Pave.dev is backed by Better Tomorrow, Bessemer, 8VC, and other top funds and angels from Coinbase, Chime, SoFi, CashApp, and Plaid.

Remote Full-time
Jane Street 2 days ago
OCaml

Jane Street | Hybrid | Full-time

If you haven't heard of us before, we’re a quantitative trading firm that cares a lot about technology. This means building elegant solutions that scale well, never assuming that “best in market” is the same as “best possible,” and ensuring everybody has the resources needed to do their jobs well.

We're looking for folks in New York, London, Hong Kong, and Singapore for a variety of roles including, but not limited to:

- Staff UX Designers capable of producing elegant design solutions for our internal systems, while also cultivating an environment for sustainable design growth at the firm -- https://www.janestreet.com/join-jane-street/position/6847048...

- A Programmer-Who-Writes, or a Writer-Who-Codes -- https://www.janestreet.com/join-jane-street/position/7604415...

- A Software Engineer with experience working on language compilers and runtimes -- https://www.janestreet.com/join-jane-street/position/6378838...

- Software Engineers who are intimately tied into every area of our business. We are big believers in functional programming, using OCaml, a statically-typed functional programming language, as our primary development language. We also believe in the value of open source software, using it in our daily work and releasing hundreds of thousands of lines of our own code as open source -- https://www.janestreet.com/join-jane-street/position/4274288...

For more about technology at Jane Street, visit: https://www.janestreet.com/technology/

Full-time