{"id":3534412,"url":"https://alion.io/job/wpp-data-steward-people-platforms","title":"Data Steward - People Platforms","company":{"id":5467,"name":"WPP","domain":"wpp.com","url":"https://alion.io/company/wpp","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":88,"open_postings":33,"ghost_share":0,"stale_share":0.485,"repost_share":0,"time_to_fill_p50_days":57,"computed_at":"2026-11-02T06:13:15Z"}},"role":"Data Science","role_family":"Data Science","seniority":null,"employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":66000,"max_usd":150000,"period":"year","method":"role_country_seniority_unknown","sample_n":202},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Anomaly Detection","optional":false},{"name":"Human-in-the-Loop","optional":false},{"name":"Informatica","optional":false},{"name":"Master Data Management","optional":false},{"name":"Machine Learning","optional":true},{"name":"SQL","optional":true}],"status":"live","first_seen_at":"2026-06-12T12:35:24Z","employer_posted_date":"2026-10-30","last_verified_at":"2026-11-02T11:45:00Z","board_verified":true,"closed_at":null,"days_open":143,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":143},"description":"WPP is the trusted growth partner for the world’s leading brands. \nWe unite cutting-edge media intelligence and data solutions, world-class creativity, next-generation production, transformative enterprise solutions and expert strategic counsel in a single company - powered by exceptional talent and our agentic marketing platform, WPP Open, to help our clients navigate change, capture opportunity and deliver transformational growth. \n\nWe work with the world's most valuable brands and have global reach across 100+ markets, with deep local expertise.\n\nOur people are the key to our success. We're committed to fostering a culture of creativity, belonging and continuous learning, attracting and developing the brightest talent, and providing exciting career opportunities that help our people grow. \n\nFor more information, visit WPP.com.\n\nWhy we're hiring:\nAs a Data Steward in the WPP’s Enterprise Technology Data team, you will be responsible for the hands-on administration and maintenance of master data across one or more enterprise data domains. Reporting to the Global Programme Director - Data, you will be the first line of stewardship, ensuring that golden records are accurate, source system mappings are maintained, and data governance standards are consistently applied.\nYou will execute matching and mapping activities, triage stewardship exceptions, and support the onboarding of new source systems into the MDM framework. Your work will directly impact the trustworthiness and completeness of master data flowing through WPP’s enterprise platforms.\nThis role involves daily data administration including investigating and resolving match conflicts, maintaining entity mappings and hierarchies, classifying data assets, and supporting the operational processes that keep master data healthy across the enterprise.\nYou will be part of a Data Steward team led by the Global Programme Director - Data, with the opportunity to develop deep expertise in master data management, data governance, and stewardship at enterprise scale.\nWhat you'll be doing:\nMaster data stewardship and golden record maintenance\nExecute day-to-day stewardship activities including reviewing, approving, and correcting master data records in line with governance standards set by the Global Programme Director - Data.\nMaintain and curate golden records, ensuring survivorship rules are correctly applied and master entities remain accurate and complete.\nInvestigate and resolve match conflicts, potential duplicates, and merge exceptions, escalating complex cases to the Global Programme Director - Data with supporting analysis.\nProcess new entity creation requests, validating source data against matching rules before golden record creation.\nSource system mapping and onboarding support\nManage and maintain mappings between source system entities and golden master records, ensuring traceability and accuracy.\nSupport the onboarding of new agencies and source systems by executing mapping activities and validating initial data loads against MDM standards.\nMaintain reference data configurations, ensuring code sets and lookup values remain aligned across source systems.\nData governance and classification\nApply data classification standards to master data entities as defined by the governance framework, covering sensitivity, confidentiality, and regulatory categorisation.\nReview and correct AI-generated data classifications, providing feedback to improve automated tagging accuracy over time.\nFollow and enforce stewardship workflows including exception handling, approval processes, and escalation procedures.\nMaintain accurate documentation of entity mappings, transformation rules, hierarchy structures, and stewardship decisions.\nAI-assisted stewardship operations\nAct as the human-in-the-loop for AI-assisted matching and entity resolution, reviewing model-suggested matches, adjudicating low-confidence merge candidates, and approving or rejecting proposed golden record updates.\nReview and validate AI-generated mapping recommendations during source system onboarding, ensuring accuracy before mappings are committed.\nProvide feedback on AI model outputs to support continuous improvement of match accuracy, classification quality, and enrichment relevance.\nWork with AI-driven anomaly detection alerts, investigating flagged records and determining appropriate stewardship actions.\nData quality monitoring and remediation\nMonitor data quality dashboards and alerts, investigating exceptions and applying remediation actions in a timely manner.\nExecute data quality checks across master data entities, documenting findings and tracking resolution through to completion.\nMaintain and update data quality rules as business requirements and source systems evolve, under the direction of the Data Manager.\nOperational reporting and team support\nProvide first-line support for master data issues raised by downstream consumers and business users.\nContribute to operational reporting on stewardship volumes, exception trends, match rates, and resolution times.\nSupport data migration and reconciliation activities during source system onboarding and platform changes.\nWhat you'll need:\nExperience in a data stewardship, data administration, or master data management role.\nPractical understanding of MDM concepts including golden records, matching, survivorship, and entity resolution.\nFamiliarity with enterprise master data management and data governance solutions (e.g. Informatica MDM, Informatica Data Governance) or equivalent platforms is desirable.\nProficiency in SQL for data investigation, validation, and reporting.\nUnderstanding of data governance principles including data classification, ownership, and stewardship workflows.\nWillingness to work with AI and machine learning tools as part of day-to-day stewardship operations, including reviewing AI-suggested matches, classifications, and enrichments.\nExperience working with ERP or HCM data (Workday, SAP, Dynamics, or similar) is an advantage.\nAttention to detail with the ability to identify and resolve data discrepancies methodically.\nStrong organisational skills with the ability to manage multiple concurrent stewardship tasks and priorities.\nGood communication skills with the ability to document and explain findings clearly to both technical and business audiences.\nSelf-motivated with a proactive approach to identifying and resolving data problems.\nEnthusiasm for developing expertise in master data management, data governance, and AI-assisted data operations.\nWho you are:\nYou're open: We are inclusive and collaborative; we encourage the free exchange of ideas; we respect and celebrate diverse views. We are open-minded: to new ideas, new partnerships, new ways of working.\nYou're optimistic: We believein the power of creativity, technology and talent to create brighter futures or our people, our clients and our communities. We approach all that we do with conviction: to try the new and to seek the unexpected.\nYou're extraordinary: we are stronger together: through collaboration we achieve the amazing. We are creative leaders and pioneers of our industry; we provide extraordinary every day.\nWhat we'll give you:\nPassionate, inspired people - We aim to create a culture in which people can do extraordinary work.\nScale and opportunity - We offer the opportunity to create, influence and complete projects at a scale that is unparalleled in the industry.\nChallenging and stimulating work - Unique work and the opportunity to join a group of creative problem solvers. Are you up for the challenge?\n#LI-Hybrid \nWe believe the best work happens when we're together, fostering creativity, collaboration, and connection. That's why we’ve adopted a hybrid approach, with teams in the office around four days a week. If you require accommodations or flexibility, please discuss this with the hiring team during the interview process.\nWPP is an equal opportunity employer and considers applicants for all positions without discrimination or regard to particular characteristics. We are committed to fostering a culture of respect in which everyone feels they belong and has the same opportunities to progress in their careers.\nPlease read our Privacy Notice (https://www.wpp.com/en/careers/wpp-privacy-policy-for-recruitment) for more information on how we process the information you provide.","description_format":"text","description_chars":8374,"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":["Continuous learning"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Advertising","Creative Agencies","Digital Marketing","Media & Audience Measurement"],"lifecycle":[{"event":"open","at":"2026-10-30T17:05:00Z"}],"visa":[],"liveness":{"score":11,"band":"cold","label":"Long shot","p_open":1,"p_active":0.393,"p_room":0.28,"age_days":142,"expected_fill_days":57,"reasons":["conf:3","velocity","win:tail","crowd:brand"],"computed_at":"2026-11-02T06:13:15Z"},"pay":null,"html_url":"https://alion.io/job/wpp-data-steward-people-platforms","json_url":"https://alion.io/job/wpp-data-steward-people-platforms.json","meta":{"generated_at":"2026-11-02T14:51:43Z","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":20539,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-03T00:00:00Z"}},"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":5467},"rest":"https://alion.io/mcp/rest/get_company?id=5467"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fwpp-data-steward-people-platforms"},{"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%2Fwpp-data-steward-people-platforms"},{"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%2Fwpp-data-steward-people-platforms"},{"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/wpp-data-steward-people-platforms\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fwpp-data-steward-people-platforms"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3534412}},{"tool":"search_jobs","arguments":{"company":"wpp.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3534412},"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. 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