Puzzmatic | [https://puzzmatic.com](https://puzzmatic.com) | Senior Software Engineer | Full-time Contract | Remote | Worldwide | $4,000/month (40 hours/week)

Puzzmatic is an innovative AI copilot platform providing expert business insights, personalized psychological support, and much more through chat and voice copilots. As an early-stage San Francisco-based startup, we are currently in the "Wilderness Period" of our journey and looking to expand our team with passionate and talented individuals.

We are looking for a remote Senior Software Engineer with experience in Next.JS, Javascript/Typescript, Python, and/or Postgres to help us develop features and functionalities across our core chat and voice experiences.

To apply, email Email is hidden with your GitHub or LinkedIn, a note on what you're most proud of building and what you'd like to build next.

https://www.notion.so/puzzmatic/careers-at-puzzmatic-71c7b02...

https://contextflow.com | Remote, Europe (or Hybrid Vienna if personally preferred)

contextflow ADVANCE Chest CT provides radiologists comprehensive computer-aided detection support for suspected lung cancer, ILD and COPD cases. It's main features are designed to help save time and improve reporting quality: nodule detection and quantification, nodule tracking over time, quantitative lung tissue analysis for key image findings, and qualitative analysis of 19 image patterns plus reference cases and differential diagnosis information.

We are a small product department with developers, R&D and DevOps folks creating a real product that is running on-premise at many hospitals creating real impact. contextflow is a great place for getting into all things medical software development.

Four open positions (all Full-Time):

* Join my team as a Senior DevOps Engineer (NixOS, Kubernetes, AWS, GitLab, SRE) https://jobs.contextflow.com/jobs/careers/36410000002069051/...

* Senior Machine Learning Developer (Pytorch, MLOps, "deep learning" on DICOM CT scan Images) https://jobs.contextflow.com/jobs/careers/36410000001960001/...

* Senior Frontend Developer (React, TypeScript, Elm, Node.js, Golang) https://jobs.contextflow.com/jobs/careers/36410000002090009/...

* Technical Product Owner (functional lead of our Agile/Scrum teams) https://jobs.contextflow.com/jobs/careers/36410000002017001/...

Perk if you are eager to work in an environment that is open to utilize sophisticated tools such as Elm, NixOS, Clojure.

Please ensure you are sharing a motivational letter on application.

I personally joined fully-remote in January 2023 as a DevOps Engineer. I really enjoy what we are creating and I am excited to be in a relatively young company to grow with something that is meaningful to me. An environment where everyone is interested on medical aspects has been a refreshing experience.

We look forward to receiving your application!

antithesis.com | Vienna, VA, USA | Onsite | Full-Time

Multiple jobs available at https://antithesis.com/company/careers/ (Software, Consulting, ML), but this is a hot one:

Frontend Engineer (Product/UX)

We are building a reactive notebook (similar to Jupyter/Observable) that serves as an interface to our software testing product. If you are interested in working full-time on-site in Vienna, VA, USA, for ~$130-200k per year, please send me an email to Email is hidden. I would love to see things you've created in the past.

You are guaranteed an introductory call with the hiring manager (https://vladkorobov.com/) if you are: a) authorized to work in the USA, b) have more than 4 years of front-end dev experience. c) meet at least 2 of the following criteria:

- Have a website showcasing projects you’ve worked on. - Have built a complex UI component from scratch and are comfortable working on custom Table(), Inspector(), and Plot(). - Have developed custom providers for Monaco Editor and interested to do more of those. - Have made major contributions to any design system and are interested in creating a better one without Tailwind. - Possess deep knowledge of modern JS frameworks/libraries (React/Preact/Vue/Solid/Svelte/...) and are not afraid to work without them if needed. - Have created custom code editor or some other complex UI tool (node based programming / UI editor). - Have developed a data visualization library (or wrapped some low level tools behind thoughtful API). - Have built something browser-based using WebGL, shaders, WASM, or worker threads. - Have created and published plugin for esbuild or Eleventy. This post would be too long if I included the list of things you might work on, so please reach out to me to get that information.

SmarterDx | 150-230k + equity + benefits | Remote (US only) | Multiple roles | https://smarterdx.com/careers

We are a rapid growth health tech company using AI to improve hospital revenue cycle (making healthcare costs lower and allowing doctors to focus on patient care). The current team is very high functioning (MD + data scientist combos, former ASF board member, Google and Amazon engineers, Stanford LLM researchers, etc.) and initially scaled the company to $1MM+ in contracted revenue without raising capital.

We have been backed by top investors including Floodgate (Lyft, Twitch, Twitter), Transformation Capital, and Bessemer for a total of $71mil, including our $50mil Series B announced in May 2024, and are currently on pace to 20-30X in revenue over a two-year time period.

We are looking for: Staff and Senior SWE - Senior and Non-Senior Data Engineers and Scientists - Engineering Managers (SW + Data) - Sales - Several more roles

We have PMF, and it's time to scale! For more and to apply, see https://smarterdx.com/careers

Polaron | Software Engineer, Senior Software Engineer | London, UK | Full-time

Polaron is an Imperial College London spinout [1] using generative AI to transform the material design process. We’re leveraging machine learning to bridge the gap between process (how materials are made) and performance (how materials behave). For example, using our image-based generative AI technology, we designed a Li-ion battery cathode with a 10% increased power density compared to the original design.

We’re building a SaaS platform that enables materials designers to use state-of-the-art AI techniques in their day-to-day work. We’ve just closed our first round of Angel/VC funding, and have just been announced as a finalist of the UK Government’s Manchester Prize [2].

We’re a small team with deep expertise in materials science and AI. We’re looking for software engineers excited about building early-stage tech products to join us in productising our world-leading research [3].

Some of the things on our roadmap you’ll work on include: - Building a robust cloud platform for scheduling the training and serving of bespoke AI models for our customers. - A rich web-based image manipulation application for pre-processing image data that is used to train ML models.

Tech Stack: TypeScript (React / Next.js /Express / Prisma), Python, PostgreSQL, Docker, Kubernetes, Terraform.

Apply via our jobs page: https://apply.workable.com/polaron.

If you’d like any more information, please reach out at: Email is hidden.

[1]: https://www.imperial.ac.uk/news/250657/ai-spinout-polaron-ac... [2]: https://www.gov.uk/government/news/british-ai-pioneers-share... [3]: https://polaron.ai

Zscaler | Software Engineer (Chromium/Rust/C++) | Full-Time | Remote (Europe or India Only)

About us: Zscaler is the leader in cybersecurity and zero trust digital transformation and a fast growing cybersecurity company from Silicon Valley named Leader in Gartner MQ for Secure Web Gateway and SSE multiple years in a row.

Mission: We're building the future on Remote Browser Isolation [1] at Zscaler and we're looking for talented engineers to help us. We are fully cloud native and we probably run the most scalable Kubernetes infrastructure in the world.

About the team: You will work within a small team with agile mindset to help shape up a brand new project using Chromium, GPUs, WebAssembly, and Rust. If you feel comfortable working on a low-level environment, can learn fast and not only code features and fix bugs, but also design architecture to lay the foundation for others' work you might be a great fit!

To apply, please email me at Email is hidden.

[1] https://www.zscaler.com/technology/browser-isolation

Recast | https://getrecast.com | Title Flexible, Leader of Full-Stack Ruby on Rails Team | REMOTE/Global | Full Time | Locality Adjusted ~140k to 210k + equity

At Recast we’re creating the world’s most statistically rigorous marketing mix modeling platform. That means that we help our customers determine how to spend more than $1.2 billion of their marketing budget more effectively. We’re a small (< 50 person) startup with a good mix of paying customers, a considerable runway, and a clear viable path to profitability.

I’m the VP of Engineering at Recast. I hold that hiring in tech is horrible, I’m aiming to have as humane as possible application experience. You’ll be meeting with engineers from your first live interview up until the pre-offer stage… and I promise to be real with you every step of the way.

I've taken a fairly unusual path into technical leadership and had most of my IC experience in Data Science and DevOps. You must be someone who has experiences that complement my own to join me as the second explicit leader in our ten person Engineering organization. You should be poised to grow with the company into being a senior engineering leader with a broad scope of responsibilities. On an immediate basis, you’ll take responsibility for a three person Ruby-on-Rails team and engage across the full spectrum of technical and people leadership. That includes direct communication and coordination with our product and executive team to maximize the value we deliver to our customers, driving high quality solutions, code review, one-on-ones, and hands-on development work. You will be contributing your expertise in software development and architecture to guide our core full stack application and future tech decisions.

Some bits of our tech stack: Ruby-on-Rails, React, Tailwind UI, Hotwire, Turbo, Heroku, PostgresSQL, Sidekiq, Docker, k8s, TypeScript

Other Benefits: Mature remote culture with limited meetings; work with incredibly educated and smart folk (Recast has the most PhDs per capita I’ve ever seen)

LinkedIn: https://www.linkedin.com/company/recastlabs/ Glassdoor: https://www.glassdoor.com/overview/working-at-recast-ei_ie84... nothing there, but there are some less good companies that share our name and I don’t want folks to be confused.

Questions, Want to stand out? Email Email is hidden with the subject line HN? for the former or HN! For the latter. For HN?, If I can’t answer you quickly or completely, a likely outcome is that I’ll schedule a short meeting between us so that we can quickly address mutual fit. For HN!, attach your resume also, at the very least I can promise you some very brief feedback about why/why not you’re getting a Calendly link in my response. Regardless, if applying, also use the application link below.

I’ll be out of office this week but will start responding to requests next week.

Application Link: https://grnh.se/f9a2b8498us

Neuronostics | Senior Engineer | Python | Bristol, UK (Hybrid) | up-to £85K

https://neuronostics.com is revolutionising neurological disease diagnosis and prognosis through innovative algorithms and software.

We're seeking a lead engineer to join our early-stage team and help bring our products to market.

Key skills: Python, Django, HTMX, postgres, terraform, AWS, full stack development.

Email in profile for general questions about the role/company, or application link: https://www.linkedin.com/jobs/view/3927996419

Runn | https://runn.io | Product Engineers | Remote (Canada/US/Latin America) | 4-day work week | $118-169k CAD

We are a SaaS startup headquartered in New Zealand, with 16 engineers across NZ, Asia and Europe. We are now looking to build out our US-timezone team. We’re look for intermediate to staff engineers who care deeply about product. We are running full-stack typescript with React on the frontend, a well tested and comprehensive CI/CD pipeline and follow a modified version of shape up.

We offer an async remote culture, with a 4 day work week (at full pay), 20 days annual leave, 20 days personal leave, a funded home office and work-from-home stipend.

Runn builds a project and resource management platform with a focus on the human aspect of delivering great projects. We have customers across 70 countries, managing 40,000 staff, from small start-ups to fortune 100 companies.

Visit https://www.runn.io/roles/runn-software-engineering-roles-am... to find out more and apply.

Quatt.io | Amsterdam, Netherlands | Full-time | Hybrid/ONSITE | https://quatt.io | climate tech

I'm head of Software at Quatt, a quickly growing startup/scaleup building heatpumps to help fix climate change. Heating and cooling is 50% of all energy used in the EU. Heat pumps save 10 times more CO2 for each Euro spent on them compared to electric cars. We're building the most accessible and smartest heatpump on the market. Our product is live, we have thousands of customers, tons of data, and I really like the impact we're having. I'm currently looking for a few roles for my department, as we believe having the best software will allow us to have the best product. Our backend and frontend is Typescript.

* Senior Backend developer (Typescript) * Medior QA / test engineer * Senior app developer (React native) * Medior fullstack developer Now is a great time to join, as the software team is still small but growing quickly. These and other vacancies are on our careers page: https://www.quatt.io/working-at-quatt

Email me directly ( Email is hidden ) for questions or apply via the career page - please mention you found us at HN! Unfortunately, at this time, you have to be allowed to work in the EU: we're not able to sponsor Visa.