Join us

Build the future with the world's best entrepreneurs.

Synthetic Data Expert / Stable Diffusion Artist



London, UK
Posted on Thursday, May 4, 2023

About Metaphysic:

Metaphysic is on a mission to build the future of hyperreal content.

From the Metaverse to Hollywood movies and innovative advertising, our AI technologies are helping creators move beyond the uncanny valley to generate hyperreal experiences and virtual identities that people love.

We're run by experienced Founders and backed by some of the top investors in the world. We’re only just getting started in defining the next generation of content creation. Join our fast-growing team and help bring our groundbreaking vision to life.


  • Train ML models to create hyperreal synthetic media, with a focus on generative models
  • Run generative models on stills and video footage, optimizing for both
  • implement and help develop pipelines to assist in curating and improving the generated data
  • Experience using Stable Diffusion to generate photoreal results
  • Experience with fine tuning 1.x & 2.x Stable Diffusion models on custom datasets
  • Good understanding of dataset captioning, model training hyperparameters, and their effects on the model
  • Good usage of settings, extensions, and prompting to achieve the desired results at inference
  • Knowledge of ML models and general techniques to push the quality of results: improve temporal coherence, enhance detail, and correct artifacts.
  • Work closely with the data team and broader creative team to integrate results in existing pipelines and create new ones
  • Nurture datasets and know when to change data to push the quality of specific results
  • Ability to train multiple models at once and keep on top of their processes
  • Be critical about results. The high-quality output doesn’t mean a high level of facial likeness.
  • Keep up to date with the latest models, extensions, and techniques. Implement, evaluate them, and present results to the team
  • Bonus: knowledge of Python and Pytorch
  • Bonus: previous professional experience with facial retouching work

As part of our team, you’ll enjoy:

  • The hustle of a startup with the impact of a global business.
  • Tremendous opportunity to join one of the best and fastest-growing AI companies in the world.
  • Working with an extraordinary team of smart, creative, fun, and highly motivated people.
  • You will be joining a fantastic culture, with a team that feels like family, all highly supportive, collaborative, transparent, and very passionate about our tech and mission.
  • Flexible working hours, including remote working - this role is solely remote
  • Latest computer equipment supplied for your home office
  • Pension scheme
  • Equity incentives for all new employees
  • 25 days holiday entitlement
  • Generous starting salary