{"id":3624854,"url":"https://alion.io/job/just-eat-takeaway-com-data-scientist-3","title":"Data Scientist","company":{"id":54498,"name":"Just Eat Takeaway.com","domain":"justeattakeaway.com","url":"https://alion.io/company/just-eat-takeaway-com","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":93,"open_postings":4,"ghost_share":0,"stale_share":0.5,"repost_share":0,"time_to_fill_p50_days":17,"computed_at":"2026-11-04T06:34:25Z"}},"role":"Data Science","role_family":"Data Science","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Fleet, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"A/B Testing","optional":false},{"name":"Fine-tuning","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"Python","optional":false},{"name":"Recommender Systems","optional":false},{"name":"SQL","optional":false},{"name":"Structured Outputs","optional":false}],"status":"live","first_seen_at":"2026-11-02T19:35:18Z","employer_posted_date":"2026-11-02","last_verified_at":"2026-11-04T11:38:20Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Position: Data Scientist\nDepartment: AI Growth \nReporting to: Data Science Manager\nLocation: London or Amsterdam\nHybrid role: 3 days a week from our office & 2 days working from home\nFull time / Part time role: Full time\nReady for a challenge?\nThen Just Eat Takeaway.com might be the place for you. We're a leading global online delivery platform, and our vision is to empower everyday convenience.\nWhether it's a Friday-night feast, a post-gym poke bowl, or grabbing some groceries, our tech platform connects tens of millions of customers with hundreds of thousands of restaurant, grocery and convenience partners across the globe.\nAbout this role\nJoin our AI Growth team and help build the intelligence behind Just Eat's marketplace, powering personalised experiences for tens of millions of customers across 14 countries. This is your opportunity to deliver end-to-end machine learning solutions that directly impact customer engagement and order growth.\nWe're building JET's foundation model platform, developing embedding models for search and recommendations, and creating intelligent targeting systems for personalised offers and notifications. We're looking for someone who can live our behaviours of lead, deliver and care while bringing technical excellence and innovation.\nThis role sits at the intersection of cutting-edge AI and real-world business impact. You'll work on everything from fine-tuning large language models to designing sophisticated recommender systems, all while collaborating with ML engineers, product teams, and commercial stakeholders.\nWe need someone who can challenge assumptions, translate ambiguous business problems into elegant technical solutions, and ship production-quality ML systems that make a measurable difference to our customers and partners.\nThese are some of the key components to the position:\nLead the development and deployment of ML/AI solutions including embedding models, fine-tuned LLMs, and ranking systems that drive engagement and orders while raising the bar for technical excellence.\nApply generative AI and LLM techniques to personalisation challenges, generating customer and partner representations that improve search relevance and app experiences.\nOwn your results by designing, running and interpreting A/B experiments with statistical rigour, measuring real impact on business metrics and holding yourself accountable.\nCollaborate with ML engineers to productionise models, implementing MLOps best practices and maintaining monitored pipelines that deliver consistent value.\nBreak down silos by translating complex business questions into clear modelling approaches and communicating results effectively to product and commercial stakeholders.\nBe determined to take end-to-end ownership of well-scoped workstreams, independently framing problems, choosing approaches, running experiments and presenting findings.\nMove fast by writing production-quality Python code and efficient SQL for data pipelines and analyses that can scale across our marketplace.\nContribute to JET's foundation model platform and personalised targeting systems, pushing boundaries to create lasting impact across millions of customer interactions.\nSet clear goals by designing experiments that influence commercial decisions while ensuring statistical validity and actionable insights.\nAim higher by staying current with advances in search, retrieval, recommendations and LLM applications, bringing fresh ideas to drive the AI Growth vision forward.\nWhat will you bring to the team?\nProven track record delivering end-to-end ML solutions from problem framing through data exploration to production deployment and experiment measurement, demonstrating your commitment to achieving goals.\nHands-on expertise in search, retrieval and recommendation techniques including embedding-based approaches, learning-to-rank, and vector similarity search with measurable business impact.\nPractical experience applying LLMs in production environments, including prompt engineering, fine-tuning, structured output validation and assessing generative output quality.\nStrong experimentation skills with ability to design and interpret A/B tests, reason about statistical significance, and understand the gap between offline and online performance.\nProduction-grade Python coding abilities that go beyond notebooks, writing clean, testable code suitable for engineering workflows and collaboration with technical teams.\nProficient SQL\nskills across complex data warehouses, including partitioning, window functions, and large-table joins, with focus on query efficiency and data quality.\nExcellent problem-framing and communication skills to translate ambiguous business questions into modelling approaches and explain technical results to non-technical stakeholders based on respect and mutual support.\nSelf-starter attitude comfortable with autonomy and ambiguity, thriving in fast-paced environments where you can build rapidly, test rigorously and roll out successes at scale.\nStrong collaboration skills to work effectively with senior data scientists, ML engineers, product partners and commercial teams across different levels and functions.\nResults-driven mindset with attention to detail, able to balance speed of execution with technical rigour while making data-informed decisions that create lasting impact.\nBonus skills that will help you excel:\nExperience with causal inference or uplift modelling relevant to promotions and growth initiatives.\nKnowledge of sequential or session-based recommendation modelling techniques.\nFamiliarity with real-time data pipelines and streaming infrastructure.\nExperience working across multiple languages or markets in a data science context.\nAt JET, this is how we play\nOur teams forge connections internally and work with some of the best-known brands on the planet, giving us truly international impact in a dynamic environment.\nBeing the best at what we do isn't just about delivering on our strategy. It's a competition for something incredibly valuable - our customers' choice. Every time a customer decides where to order, they're picking a side.\nAt the heart of the JET Customer League are our values and behaviours. They guide every interaction, every decision, every innovation. These are the actions we need to perform consistently and brilliantly, to surpass the competition and earn our customers' loyalty, again and again.\nFun, fast-paced and supportive, the JET culture is about movement, growth, helping one another to succeed and celebrating wins. By truly living our values and embodying our behaviours, we're building a customer-first culture which enables us to stay one step ahead of the competition.\nInclusion, Diversity & Belonging\nNo matter who you are, what you look like, who you love, or where you are from, you can find your place at Just Eat Takeaway.com. We're committed to creating an inclusive culture, encouraging diversity of people and thinking, in which all employees feel they truly belong and can bring their most colourful selves to work every day.\nWhat else are we delivering?\nWant to know more about our JETers, culture or company? Have a look at our career site where you can find people's stories, blogs, podcasts and more JET journeys.\nAre you ready to join the team? Apply now!","description_format":"text","description_chars":7299,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-11-02T19:35:18Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":1,"expected_fill_days":17,"reasons":["conf:7","velocity","win:early","comp:brand"],"computed_at":"2026-11-04T06:34:25Z"},"pay":null,"html_url":"https://alion.io/job/just-eat-takeaway-com-data-scientist-3","json_url":"https://alion.io/job/just-eat-takeaway-com-data-scientist-3.json","meta":{"generated_at":"2026-11-04T13:52:42Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":20955,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-05T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":54498},"rest":"https://alion.io/mcp/rest/get_company?id=54498"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fjust-eat-takeaway-com-data-scientist-3"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fjust-eat-takeaway-com-data-scientist-3"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fjust-eat-takeaway-com-data-scientist-3"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/just-eat-takeaway-com-data-scientist-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fjust-eat-takeaway-com-data-scientist-3"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3624854}},{"tool":"search_jobs","arguments":{"company":"justeattakeaway.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3624854},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}