We are looking for a Product Manager, Product & Backend Engineers, Product Marketing Manager and Developer Relations Engineers to join us in building the most widely adopted open-source LLM engineering platform.
- Berlin or EU hybrid (Engineering roles) / US-fully remote (Product & Marketing roles)
- ~1 week onsite in Berlin every 2 months — travel covered
- Full-time
- €90–160k + ClickHouse equity
Hi, I’m Max, CTO and co-founder. Langfuse is focused on AI/LLM observability, with a lot of interesting challenges ahead, from AI data and developer experience to scaling systems for production workloads.
Right now, we’re focused on helping customers segment their traces, surface insights from them, and ship changes to their agents faster — building observability at serious scale while creating the product surface engineers actually live in day to day.
The best way to get a feel for what we’re building and how we work:
• Company Handbook (https://langfuse.com/handbook)
• How we work (https://langfuse.com/handbook/how-we- work/principles)
• How we hire (https://langfuse.com/handbook/how-we-hire)
• Product Documentation (https://langfuse.com/docs)
• All our open roles (https://jobs.ashbyhq.com/langfuse)
If you’re excited about building the infrastructure and product layer for the next generation of AI applications, we’d love to hear from you.
Happy to answer any questions!
We are a vibrant technology company developing groundbreaking solutions that enable the rapid transition towards a world of decentralized energy. We’re helping companies to rapidly transition from being passive electricity consumers to becoming fully self-sustaining prosumers, capable of leveraging various renewable energy assets.
We are currently looking for a Senior Rust Engineer to join one of our backend teams in Berlin.
The role is primarily based in-office in Berlin, with a possibility for hybrid work (which can be discussed during the course of the interview).
Our homepage: https://www.frequenz.com/
Apply here: https://www.frequenz.com/jobs/senior-rust-engineer We would appreciate if you could attach links to your code examples from github, gitlab, or the like to your application.
(PS: If you choose to apply, we would appreciate if you could mention that you have come from HN :) )
We build foundation models for tabular data. Deep learning transformed text and images but mostly skipped tables, which are still the data behind most clinical trials, financial models and scientific experiments. The reason is structural: no natural sequence, no spatial structure, no shared vocabulary across datasets, so the architectures and scaling laws behind LLMs don't transfer.
Our approach: pre-train a transformer on millions of synthetic datasets sampled from causal-structure priors. The whole dataset goes in as context, predictions come out in one forward pass. No per-dataset training, no hyperparameter tuning, seconds instead of hours. TabPFN v2 was published in Nature and set a new state of the art; TabPFN-3 scales to 10M rows. 4M+ downloads, 8k+ GitHub stars, in production from liquid biopsy to rail maintenance. Code: https://github.com/PriorLabs/TabPFN
Since July we're an independent lab inside SAP, with more than EUR 1B committed over four years. Models stay open, research stays public, same team and offices.
Roles (most can sit in any of the three offices):
- Senior ML Infrastructure Engineer: own multi-cluster GPU infra (Slurm on GCP today, multi-provider next), training performance and the tooling layer. We spend tens of millions per year on compute; you own that budget.
- Research Scientist, Foundation Model: drive the model agenda - novel architectures, scaling from 10K to 1M+ samples, multimodal and causal directions. PhD plus top-venue publications, or equivalent.
- Research Engineer, Foundation Model: same agenda from the engineering side. You design experiments, write the training and eval infra, and co-author the papers.
- ML Engineer, Cloud Platform: design and scale the backend that serves and finetunes the models. Python/FastAPI, Terraform, K8s.
- Full Stack Engineer, ML Platform: build the product end to end. TypeScript + Python, React/FastAPI/Postgres.
Also hiring: Applied Scientist, Forward Deployed ML Engineer, Research Scientist (Foundational Data Science), PhD research interns, plus GTM and ops roles.
~40 people with backgrounds from Google, DeepMind, Jane Street, Goldman, G-Research, CERN. Led by Frank Hutter, advised by Bernhard Schölkopf and Yann LeCun. Comp competitive with top AI labs.
All roles and applications: https://jobs.ashbyhq.com/prior-labs
Questions welcome in the replies here.
check out roles -> https://careers.telli.com/
NetBird is open source networking and access control WireGuard-based overlay networks with zero-config peer-to-peer connectivity. Open source, built in Europe, used by thousands of teams worldwide. We're a small and growing team going up against the incumbents in network security. Post Series A.
- Engineering Manager : You will take a huge part in leading and scaling our engineering org. Unblocking, scaling, hiring, you'll still read code and hold technical opinions that impact the product. We're not looking for a pure people manager. Networking/infra background is a plus, not a filter. If you've scaled a team from 0 to 20+ and seen your product scale too, I'd love to talk to you.
- Senior/Staff Backend Engineer (Golang) : the control plane: peer coordination, policy and access control, multi-tenancy, and keeping it all fast as customer networks grow into the hundreds of thousands of peers.
- Network / Client Engineer (Golang) — the agent side: WireGuard, NAT traversal and hole punching, relays, DNS, and shipping one client across Linux, macOS, Windows, iOS and Android. If you enjoy debugging why one connection out of a thousand won't go peer-to-peer, this is the role.
- Solutions Engineer — technical, customer-facing, pre/post-sales. You'll be the person who architects a rollout for a 500-person company's network live on a call, and a great channel back into the roadmap.
We have an office in Berlin and mostly work CET/CEST. We'd love to have you in the office with us, but if your experience is stellar we're happy to hire remote. We're scaling quickly, so this is a chance to join early and scale your career as well as with the company.
Apply at https://netbird.io/careers, please mention you found us on Hacker News in your application.
We're building software for agricultural logistics, from field to factory. A lot of harvest planning still happens over phone calls and spreadsheets, even though weather, queues, breakdowns, and capacity change throughout the day.
Good fit if you want to work on planning, dispatch, optimization, allocation, OR and you’re comfortable shipping production systems.
FlixTrain is on a mission to make long-distance rail travel affordable and sustainable across Europe. Every passenger we shift to rail matters, and the onboard connectivity is a key part of what makes people switch.
We're hiring an Onboard Technology Manager to own everything that keeps passengers connected and crew productive on the train: Wi-Fi and network infrastructure, onboard units, and mobile devices for train staff. As satellite constellations and 5G redefine what's possible for high-speed mobile connectivity, you'll help set the direction for the technology being adopted on the largest non-governmental train fleet: writing specs, defining network architectures, monitoring live performance, and driving improvement projects from their conception to the finish line.
The role is highly cross-functional. You'll work with internal partners (operations, customer product, and rail engineering) and external ones, such as tech vendors (Icomera and Advantech) and train manufacturers (Siemens, Talgo).
What we're looking for:
- Bachelor's or Master's in Telecommunications, CS, Electrical Engineering, or similar
- 2+ years hands-on with network architecture, Wi-Fi systems, or Mobile Device Management (ideally in rail or a similarly complex environment)
- Strong troubleshooting skills on complex networked systems
- Comfortable leading cross-functional initiatives and communicating clearly with both engineers and non-technical stakeholders
- Fluent German and English (internally, English is preferred, but German is often mandatory when working with suppliers and regulatory bodies)
Perks: hybrid office/remote work model, up to 60 extra remote days/year from abroad (work from anywhere), 12 free FlixTrain travel vouchers/year + 12 for friends and family, mental health support, L&D budget, mentoring program.
We are an AI engineering company that builds end-to-end AI solutions. By applying the latest AI research, we keep our clients at the forefront of innovation. If you are interested check out:
https://www.ml6.eu/en/customers/cases/
Work on innovative projects for the biggest clients across Europe such as Randstad, ASML, FUNKE, and many more! Whether it’s about leveraging LLMs to improve customer support, building data lakes on cloud platforms to improve storage or implementing models using sensor data for quality control. You can find it all at ML6. You will mostly work with Python and a range of ML frameworks such as TensorFlow, PyTorch, or HuggingFace Transformers and help bring application into production by building data pipelines and cloud infrastructure on all of the major cloud providers (GCP, AWS, Azure).
Open roles include:
• Senior AI Engineer
• Senior Software Engineer
• Medior AI Engineer
• Squad Lead GenAI
and many more!
Apply now at https://jobs.ml6.eu/
We recently raised series A and are hiring driven engineers who have strong product sense, leverage AI effectively, communicate well, and want to build technically interesting products that benefit the everyday person.
You'll join as the lead product engineer on greenfield projects that are scoped to take us from 1-100. We're building a verticalized factory for claims. ex:
* agentic legal case origination agent - responsible for validating things like privacy violations, research existing case law to find new cases for us to operationalize
* real-time claims processing - claim quality / fraud detection at scale, harnessing regulatory requirements for novel approaches
and much much more
Chariot Claims is a platform that helps everyday people find, file, and manage legal claims without any hassle. We proactively identify companies accused of breaking the law and violating consumer rights, and fight so they can get the compensation they may be entitled to. We partner with law firms to execute on legal proceedings.
Our team is fully remote, with hubs in Berlin, NY, DC, and (soon) SF. Onsites for the team in the US every ~2 months, and curated offsites in a beautiful location 2-4 times a year with your +1.
https://jobs.ashbyhq.com/chariotclaims?departmentId=c3e8e98e...
At Quobyte we are working on a highly scalable and fault-tolerant software storage system built around a parallel file system core. Our customers use us for large scale AI and HPC clusters in the enterprise and research, k8s and OpenStack infrastructures, and as a scalable backend for SaaS products. There are Quobyte clusters which span tens of thousands of machines and slurp 100s of GB/s!
Under the hood, we have built a full-stack fault-tolerant parallel file system, with everything from kernel development over our own replicated database system design to distributed algorithms (Paxos!) and performance. In short: lots of real-world challenging and fun problems!
We work as a highly efficient engineering team, ship frequently, do code reviews, and have lots of unit and integration testing. If you’re passionate about systems, we might be the right place for you!
Berlin, Germany (Onsite):
* Software Engineer (with a passion for Systems, 60-100k EUR) * Infrastructure Engineer (engineering and corporate infrastructure, 50-90k) * Customer Success Engineer (50-90k)
For detailed job descriptions please and application process, please visit https://www.quobyte.com/company/careers or write to work at quobyte.com.