whoishiring.jobs

Mixpeek | Founding Engineer | New York, NY | ONSITE/HYBRID | $100-150k + Equity

We're building multimodal search infrastructure, think of it like an index for your S3 bucket. Looking for a full-stack founding engineer.

Stack: Python (FastAPI), React, AWS/GCP, PyTorch, dozens of ML models for computer vision/NLP

San Francisco, CA; full-time; onsite/in-person

I’m the cofounder of KREA (https://krea.ai), a startup in San Francisco building a design tool to make AI fast, controllable, and intuitive. We’re a small team (~7) and we’re looking for talented folks (https://www.krea.ai/careers) who are interested in scuffling hard technical problems with other smart people while building a useful, beautiful, and performant product that millions of creatives globally will rely upon.

Check out our SIGGRAPH talk (https://youtu.be/Gm1B5DT8kE0?t=5824) or how our users use KREA (https://x.com/MartinNebelong/status/1724747362327781502) to see some features of the product.

We are well-funded, have millions in both users and revenue, and we keep growing. Our userbase ranges from the creative director of Coldplay to people doing 3D renders for architecture firms.

However, everything is on fire, and our small team can't build fast enough alone. We are looking for any smart person fascinated by our industry.

Example tasks:

- Frontend: building out 3D environments for AI rendering, highly detailed optimization work on our real-time AI canvas, and tons of Svelte (compiler knowledge is a great bonus!).

- Machine-learning: work on adapters from MMDit blocks to make models like Flux or SD3.5 more steerable; apply SAEs to cluster and interpret large image/video datasets; implement Diffusion-DPO; work on large-scale training and inference optimization for image/video diffusion models.

- Backend: build, scale, and "reliabilize" an infrastructure to support a cluster of >1000 GPU-nodes performantly, simply, and beautifully. We expect excellent understanding of distributed systems and engineering trade-offs.

Our tech stack: PyTorch, CUDA, DeepSpeed, k8s, ONNX, TensorRT, Grafana, Svelte(Kit), PostgreSQL, Redis.

If you are interested in learning more about what we’re working on or just want to meet to talk about steerable AI for creatives, you can email me at d+hn@krea.ai.

Unsloth (YC S24) | Machine Learning, Infra & Software Engineers | Full-time/Intern | SF (Pref)/Remote | $100K-$250K pa + equity | https://unsloth.ai/

Come join us! We have 2.5 million monthly model downloads, 17.6K Github stars & collaborate with Meta, Google, Hugging Face, PyTorch on open models. We fixed dozens of bugs in Gemma, Llama, Mistral, fixed a gradient accumulation bug, and made finetuning Llama 2x faster & use 70% less VRAM!

We value engineers who are proactive, independent and who ship features and ideas quickly - if stuff breaks, that's fine with us! Read more at https://github.com/unslothai/unsloth/wiki#-we-are-hiring

Blueberry Pediatrics | Full-stack Senior or Staff Engineer | REMOTE (US-only)

American healthcare is seldom affordable, accessible, or high-quality. We are fixing this for pediatrics. Blueberry is the most affordable option amongst our competitors. We practice the highest quality pediatric telemedicine, as evidenced by our exclusive hiring of board-certified pediatricians and the usage of at-home medical kits. And, we’re accessible 24 hours a day.

Our success is shown in the lives we save, the costs we save our insurers, and our exploding B2B and D2C business.

As you can imagine, pulling off affordable high-quality healthcare is a challenge. It requires a lot of engineering ingenuity, a C-suite aligned with positive patient outcomes above short-term profits, and a great product team.

We use Django, Hotwire Turbo (an HTMX-like framework), Pytorch, Sklearn, and Flutter. Experience in these technologies helps, but what’s more important is general full-stack knowledge, curiosity, and a strong work ethic.

Full-stack Senior or Staff engineer: https://jobs.ashbyhq.com/blueberrypediatrics/e79e093e-cf29-4...

Our homepage: https://blueberrypediatrics.com/

Float | Remote (US) / Chicago, Boston | Full-Time | https://www.float.trading

Float is a tech startup founded by mathematicians with a bold vision: to build real-time vector embeddings that capture the instantaneous state of the world's financial markets. We aim to reflect every market, every supply chain, and every relevant piece of financial data. Our tech will combine cutting-edge AI/ML techniques with real-time processing of streaming data.

If you’re interested in training GPT models from scratch on a domain other than natural language, this is a great opportunity.

We're hiring for one role right now: Machine Learning Engineer

We're looking for experience with pytorch and an ability to reason about models mathematically. Experience with c++ is a plus.

Please email us (hiring at float dot trading) and mention HN in the subject.

Witty Machines | Senior Robotics Engineer | Zurich, Switzerland | ONSITE | 100-140k CHF + Equity

We build physically intelligent software that enables industrial robots to perform complex manipulation tasks in the food industry - things that were previously impossible to automate. Our systems combine advanced ML, computer vision, and control algorithms to make robots truly adaptable to real-world variations.

We're looking for a Senior Robotics Engineer to help architect and implement our core technology stack. You'll work directly with industrial robots, design perception and control systems, and help shape our technical direction as an early employee.

Tech stack: Python, C++, ROS, PyTorch, industrial robotics platforms

Requirements: - Good robotics fundamentals (perception, planning, control)

- 1-2+ years hands-on experience with industrial robots or similar systems

- ML/computer vision experience is valuable

- Must be based in or willing to relocate to Zurich Why us:

- Well-funded startup with real customers and revenue

- Work on cutting-edge robotics problems with immediate real-world impact

- Significant equity package

- Shape technical architecture and company direction as an early employee

- Central Zurich office location

Apply: join@witty-machines.com