Senior / Staff ML Engineer

Visa Hunt; Greater London; On-site; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Skilled Worker visa sponsorship

Competitive salary and equity

Job summary

Recraft, based in London, is seeking experienced Research Engineers to develop and optimise AI models and push the boundaries of generative AI. You will work on large-scale generative models and contribute to production-ready ML pipelines in a collaborative, innovation-driven environment.

The role is full-time and on-site in the UK, with sponsorship for Skilled Worker visa offered to qualified candidates. We value excellence, experimentation, and impactful research that shapes creative workflows.

Qualifications

• Proven experience in training generative models (images/audio/LLMs).
• Experience evaluating generative models with qualitative and quantitative metrics.
• Strong proficiency in PyTorch and modern architectures.
• Hands-on experience building end-to-end ML pipelines from data to deployment.
• Strong software engineering skills, writing high-quality code.
• English at B2+ level, both spoken and written.

Responsibilities

• Develop and train large-scale generative models and push AI capabilities.
• Design experiments to explore architectures, analyze results, and implement improvements.
• Continuously innovate by deploying new features improving user experience.

Skills

Generative AI

PyTorch

End-to-end ML pipelines

Software engineering

English: B2+

Tools

PyTorch

Job description

About Us

Founded in the US in 2022 and now based in London, UK, Recraft is an AI tool for professional designers, illustrators, and marketers, setting a new standard for excellence in image generation.

We designed a tool that lets creators quickly generate and iterate original images, vector art, illustrations, icons, and 3D graphics with AI. Over 3 million users across 190+ countries have produced hundreds of millions of images using Recraft, and we're just getting started.

Join a universe of professional opportunities, develop and support large-scale projects, and shape the future of creativity. We are committed to making Recraft an essential, daily tool for every designer and setting the industry standard. Our mission is to ensure that creators can fully control their creative process with AI, providing them with innovative tools to turn ideas into reality.

If you’re passionate about pushing the boundaries of AI, we want you on board!

Job Description

We are looking for experienced Research Engineers to develop and optimise AI models, conduct cutting‑edge research, and push the boundaries of AI and machine learning. Whether your expertise lies in AI model development, applied research, or production‑level deployment, this role offers the opportunity to work at the forefront of generative AI innovation.

Key Responsibilities

• Develop and train large-scale generative models, pushing the boundaries of AI capabilities.

• Design and run experiments to explore and refine model architectures, analyze results, and implement data-driven improvements.

• Continuously innovate by developing and deploying new features that enhance user experiences.

Requirements

• Proven experience in training large-scale generative models (e.g., image generation, audio synthesis, or large language models).

• Expertise in evaluating generative models, with a deep understanding of qualitative and quantitative metrics.

• Strong proficiency in PyTorch and familiarity with state-of-the‑art neural network architectures.

• Hands‑on experience building end-to-end machine learning pipelines, including data collection and pre‑processing, model training and evaluation, inference serving.

• Strong software engineering skills, ability to design, implement and maintain high-quality code.

• English: B2+ (Upper-Intermediate or above), written and spoken.

What We Offer

• Competitive salary and equity.

• Opportunities for professional growth and leadership.

• A collaborative, research‑driven environment.

• The chance to work on cutting‑edge AI projects that redefine creative workflows.

• The opportunity to contribute to open‑source AI research and publications.

• Full‑time, on‑site role.

• We’re able to offer Skilled Worker visa sponsorship in the UK for qualified candidates.