{"id":2015633,"url":"https://alion.io/job/mastercard-lead-data-scientist-6","title":"Lead Data Scientist","company":{"id":252,"name":"Mastercard","domain":"mastercard.com","url":"https://alion.io/company/mastercard","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":94,"open_postings":221,"ghost_share":0.018,"stale_share":0.357,"repost_share":0.09,"time_to_fill_p50_days":21,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Data Science","role_family":"Data Science","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Toronto, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":91000,"max_usd":181000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":9},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"LLM","optional":false},{"name":"Python","optional":false},{"name":"Spark","optional":false},{"name":"Unix","optional":false}],"status":"closed","first_seen_at":"2026-10-03T00:10:50Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-10-12T00:01:14Z","board_verified":false,"closed_at":"2026-10-12T00:01:14Z","days_open":8,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":8},"description":"Join Mastercard's Cyber and Intelligence Solutions team as a Lead Data Scientist. In this role, you will analyze worldwide fraud data, apply modeling techniques to detect and prevent fraud, and build new fraud-related products and services. You should have experience with Python, Spark, and UNIX, as well as a degree in a quantitative discipline.\nMissions\nContribuer à l'innovation, au développement et à la gestion des produits et services de Mastercard pour répondre aux besoins en matière de risque et de sécurité.\nUtiliser votre expertise en science des données pour analyser les données sur la fraude à l'échelle mondiale et appliquer des techniques de modélisation pour identifier et comprendre la fraude.\nConstruire et gérer de nouveaux produits et services liés à la fraude qui apporteront de la valeur à nos clients et augmenteront les revenus.\nProfil recherché\n - Familiarity and experience with UNIX highly desired- Experience with Python and Spark for data manipulation is required\n- Excellent inter-personal skills, able to work with colleagues remotely as well as in -person\n- Experience writing complex queries to efficiently extract and manipulate large amounts of data\n- Record of accomplishment in learning and applying new techniques and data analysis languages\n- Hands-on experience designing, building, or deploying agentic AI systems, such as LLM-based agents that plan, use tools, and execute multi-step tasks autonomously, is strongly preferred\n- Experience preparing presentations for management/clients that present insights clearly and efficiently\n- Degree in quantitative discipline preferred (e.g., Mathematics, Statistics, Physics, Computer Science, Decision Science or Engineering)\n- Proven experience working with stakeholders to deliver state-of-the-art solutions that adhere to their requirements\n- Ability to combine knowledge across multiple disciplines to solve problems\n- Subject matter expertise in payments, cards, and /or fraud or proven ability to learn and master new subject matter areas","description_format":"text","description_chars":2032,"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":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Cybersecurity","Financial Services"],"lifecycle":[{"event":"open","at":"2026-10-07T13:10:12Z"}],"visa":[],"liveness":null,"pay":null,"html_url":"https://alion.io/job/mastercard-lead-data-scientist-6","json_url":"https://alion.io/job/mastercard-lead-data-scientist-6.json","meta":{"generated_at":"2026-10-12T01:33:30Z","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":1861,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":252},"rest":"https://alion.io/mcp/rest/get_company?id=252"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmastercard-lead-data-scientist-6"},{"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%2Fmastercard-lead-data-scientist-6"},{"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%2Fmastercard-lead-data-scientist-6"},{"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/mastercard-lead-data-scientist-6\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmastercard-lead-data-scientist-6"}]}