Demo

Senior/Staff Applied Scientist

Photoroom
San Francisco, CA Full Time
POSTED ON 12/25/2025
AVAILABLE BEFORE 1/24/2026
About Us

Photoroom launched in 2020 after being accepted into Y Combinator and has become the world's most popular AI photo editor over the past four years. Our goal is to create the technology allowing anyone create studio-level product images in minutes.

With over 300 million downloads and processing 5 billion images annually, we serve both individual creators and major enterprises like Amazon, DoorDash, and Decathlon through our B2C app and B2B API solutions.

We're a profitable, remote-friendly company that has raised Series B funding and aims for 40% year-over-year growth. Our team of 100 passionate builders focuses on craft, innovation, and collaboration, creating exceptional impact for entrepreneurs and businesses worldwide.

TL; DR 🤓

Photoroom is looking for a talented Senior/Staff Applied Scientist. You will work on several ML solutions, starting from the requirements, literature, all the way to a product. You will own most of this process, be trusted and have your say on data acquisition, optional labelling, overall strategy and follow-ups. Your work will serve millions of users, be useful and be remarked.

We are also training an open-source diffusion model from scratch, offering the opportunity to contribute to something cutting-edge and shareable with the broader ML community.

💰 Competitive salary Stock-Options/BSPCE

🇪🇺 We are flexible: you can work from anywhere in Europe within a 3-hour flight from Paris (HQ) and come to our office once a month (fully reimbursed) or more often. This ensures effective collaboration and supports our commitment to reducing our carbon footprint.

✈️ We offer substantial support for relocation (10k€ signing bonus), including finding an apartment in Paris and supporting you with the visa procedure.

💻 Technology - new MacBook Pro, monitor, keyboard, etc.

🏖️ Socials - Quarterly company retreats, weekly Happy Hour & Game Time

🇬🇧 PhotoRoom is an international team and we work in English. We offer language lessons for those who need them (English & French).

✨ About The Role ✨

  • You'll be the eleventh engineer in the ML team, working alongside great talent from various backgrounds.
  • You will have full ownership of your ML work streams when applicable, or work with teammates on big topics. You have expertise and ownership; you have a say in how that goes.
  • You will master the whole pipeline, from training models to putting them into production and monitoring their performance.
  • You will work on new features, new applications, and some 0→1 solutions.
  • You will get fast feedback from our users and will iterate quickly. You will follow the usage of the product and make decisions based on that.
  • You will work within a small multicultural team composed of ~75 passionate, friendly & committed folks.

✨ About You ✨

  • You have 3 years of experience with PyTorch, Tensorflow or Jax, and are willing to start or keep working with PyTorch.
  • You have extensive experience with diffusion models for image creation or editing.** You’ve trained diffusion models from scratch, or practiced deep surgery beyond their original pre-training.
  • You are always the most pragmatic person in the room.
  • You favor speed of iteration over perfect, always leverage frameworks and libraries to avoid reinventing the wheel.
  • You have experience working on products requiring complex architectures.
  • You have a strong sense of ownership.
  • You take initiative and you are at ease to make product & technical decisions.
  • You have worked as part of a talented team and have experience in a fast-growing startup.
  • You’re curious, are comfortable with explaining or learning depending on the situation. The team has deep expertise and values knowledge sharing and humility.
  • You are fluent in English (French is not required!).

✨ Hiring Process ✨

  • Screening call with our Head of AI
  • Home technical assignment, reviewed with the team
  • Culture fit interview and meet the team!
  • Reference check & Offer

Support - If you have a medical condition or an individual need for an adjustment to our process, and you believe this may affect your ability to be at your best - please let us know so we can talk about how we can best support you and make any adjustments that may be needed.

Diversity, Equity, Inclusion, and Belonging

We're committed to enabling everyone to feel included and valued at work. We believe our company and culture are strongest when composed of diverse experiences and backgrounds.

That's also why we have flexible working hours, trust people to work remotely, and extended parental leave.

All qualified applicants receive consideration for employment without regard to age, color, family, gender identity, marital status, national origin, physical or mental disability, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws.

Salary.com Estimation for Senior/Staff Applied Scientist in San Francisco, CA
$125,636 to $156,249
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