Senior Data Scientist

RoleDepop is looking for a talented Senior Data Scientist to join our Search & Ranking team in the UK. As part of the Search & Ranking team you will work alongside a Product Manager, Backend Engineers and other Data Scientists playing a key role in building state-of-the-art models to power Depop's search engine and ranking across the app.ResponsibilitiesYou will:Research, design and deliver machine learning solutions to tackle problems within the search & discovery space:Learning-to-rank modelsVector search & embedding modelsetc.Understand requirements from various stakeholders across the business, designing machine learning solutions to solve business problems, such as:How can we surface relevant results for this search?How can we show users personalised results in real time?What is the right price for this user?Set up and conduct large-scale experiments to test hypotheses and drive product developmentKeep 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 whiteboarding sessions, product road mapping, etc)Report and present technical findings to technical and non-technical audiencesQualificationsSkills and experienceSignificant experience (3+ years) working as a Data Scientist, with a track record of delivering models to solve industry-scale problemExperience working with search or recommendation modelsExperience with experiment design and conducting A/B testsProficiency in Python, with the ability to write production-grade code and a good understanding of data engineering & MLOpsSolid understanding of machine learning concepts, familiarity working with common frameworks such as sci-kit-learn, TensorFlow, or PyTorchCollaborative and humble team player with an ability to work with cross-functional teams, including technical and non-technical stakeholdersPassion for learning new skills and staying up-to-date with ML algorithmsBonus pointsExperience with Databricks and PySparkExperience with deep learning & large language modelsExperience with traditional, semantic, and hybrid search frameworks (e.g. Elasticsearch)Experience working with AWS or another cloud platform (GCP/Azure)Additional informationUK Benefits Health + Mental Wellbeing - Cash-plan or PMI - you have the choice of a healthcare plan that best suits you - Subsidised counselling and coaching - we partner with Selfspace to provide you with the opportunity for a good conversation with a qualified person - Cycle to Work scheme - choose between Evans or the Green Commute Initiative to help access a bike for your commute - Employee Assistance Programme (EAP) - have access to a confidential support network of expert advice 24/7 - Mental Health First Aiders - we have trained individuals across the business to offer support and signposting Work/Life Balance - 25 days annual leave with the option to carry over up to 5 days - 1 company-wide day off per quarter, for you to take some time for yourself and decompress - Impact hours: At Depop, we offer all full-time employees up to the equivalent of 2 days additional paid leave per year to volunteer. We allocate this time in hours to help you engage with your community with ease and flexibility. Flexible Working MyMode is our hybrid-working model, designed to empower our employees to choose a working mode that works for them. MyMode is composed of 3 working modes: Flex, Office Based and Remote. - Flex: we'd love you to head to your nearest Depop office once a week, but feel free to work from home the rest of the week. - Office: Want to head into the office more? No problem, you can opt to be "Office-Based", with your very own desk. - Remote: depending on your role you can request to be a remote worker, and only head into the office 4 times per year. All of our offices are also dog-friendly! Do your best work with your best friend. You can also apply to work abroad for 4 weeks of the year (in UK tax treaty countries). Family Life - Our parental leave policies aim to support and enable parents to play equal roles in nurturing their families, in a way that is flexible and truly gender-neutral. Our full-time regular employees are eligible for 18 weeks of paid parental leave for the birth or adoption of their child. We also offer IVF leave, shared parental leave and paid emergency parent/carer leave. Learn and Grow - We offer budgets for conferences, learning subscriptions and more. We also sponsor and run a myriad of programmes, conferences and meet-ups to upskill our employees and enhance their journey with us. Your Future - Life Insurance (financial compensation of 3x your salary) - Pension (Depop will match your contribution up to 6% of your qualifying earnings) And finally, as a valued Depop employee we waive all of our employees' fees when they sell on Depop so you can ship your sold items anywhere in the UK for free.
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