Machine Learning Scientist

Role

At Depop, machine learning is integral to our value proposition. As a Machine Learning Scientist, you will work on building state‑of‑the‑art ranking models to power Depop's app, serving millions of personalised results to users daily.

• Research, design and deliver machine learning solutions to tackle problems
• Understand requirements from various stakeholders across the business, designing machine learning solutions to solve business problems
• Set up and conduct large‑scale experiments to test hypotheses and drive product development
• Keep up to date with state‑of‑the‑art research, contribute to Machine Learning groups, and apply new techniques for NLP, image processing, etc.
• Participate in team ceremonies (follow the agile cadence, technical white‑boarding sessions, product road mapping, etc.)
• Report and present technical findings to technical and non‑technical audiences

• Experience working as a Machine Learning Scientist, with a track record of delivering models to solve industry‑scale problems
• Solid understanding of machine learning concepts, familiarity working with common frameworks such as Transformers, PyTorch or Tensor Flow
• Proficiency in Python, with the ability to write production‑grade code and a good understanding of data engineering & MLOps
• Collaborative and humble team player with an ability to work with cross‑functional teams, including technical and non‑technical stakeholders
• Passion for learning new skills and staying up‑to‑date with ML algorithms

• Experience working on learning‑to‑rank, search or recommendation models
• Experience with deep learning & large language models
• Experience with experiment design and conducting A/B tests
• Experience with Databricks and Py Spark
• Experience working with AWS or another cloud platform (GCP/Azure)

Health + Mental Wellbeing PMI and cash plan, healthcare access with Bupa; subsidised counselling and coaching with Self Space;
Cycle to Work scheme with options from Evans or the Green Commute Initiative;
Employee Assistance Programme (EAP) for 24/7 confidential support;
Mental Health First Aiders across the business for support and signposting. Work/Life Balance: 25 days annual leave with option to carry over up to 5 days; 1 company‑wide day off per quarter;
Impact hours:
Up to 2 days additional paid leave per year for volunteering;
Fully paid 4‑week sabbatical after completion of 5 years of consecutive service with Depop, to give you a chance to recharge or do something you love. Flexible Working:
MyMode hybrid‑working model with Flex, Office‑Based, and Remote options (role‑dependent); all offices are dog‑friendly; ability to work abroad for 4 weeks per year in UK tax treaty countries. Family Life: 18 weeks of paid parental leave for full‑time regular employees; IVF leave, shared parental leave, and paid emergency parent/carer leave. Learn + Grow:
Budgets for conferences, learning subscriptions, and more; mentorship and programmes to upskill employees. Your Future:
Life Insurance (financial compensation of 3x your salary); pension matching up to 6% of qualifying earnings. Depop Extras:
Employees enjoy free shipping on their Depop sales within the UK; special milestones are celebrated with gifts and rewards.