{"id":60996,"url":"https://alion.io/job/trader-senior-data-scientist-toronto-mfd","title":"Senior Data Scientist - Toronto (m/f/d)","company":{"id":20425,"name":"TRADER Corporation","domain":"trader.ca","url":"https://alion.io/company/trader","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":true,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":79,"open_postings":32,"ghost_share":0.344,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":57,"computed_at":"2026-10-24T06:02:35Z"}},"role":"Data Science","role_family":"Data Science","seniority":"senior","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":71000,"max_usd":124000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":79},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-02-12T08:32:18Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-10-24T12:22:53Z","board_verified":true,"closed_at":null,"days_open":254,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":253},"description":"We are TRADER, a Canadian leader in digital automotive solutions. Our flagship brands - AutoTrader.ca, AutoSync, Dealertrack Canada and CMS - help Canadians buy, sell, and finance vehicles with confidence. \nLearn more at tradercorporation.com. \nAs part of AutoScout24 group, Europe’s largest online car marketplace, we’re shaping the future of automotive retail in Canada and beyond. \nAs Senior Data Scientist, you will be key contributor within our global Data Science organization, shaping AI and machine learning systems that sit at the core of our marketplace platforms across Europe and Canada. \nYou design, build, and operate machine learning and GenAI systems that run in production and matter to the business. You work on complex, ambiguous problems, exercise strong technical judgment, and take responsibility for outcomes - not just models. While this is a hands-on role, you are also expected to influence technical direction, raise the bar for engineering practices, and enable other data scientists and engineers to succeed.This position is permanent and based in Toronto. \nWhat you’ll do \nOwn ML and GenAI systems end-to-end in production, including problem framing, system design, deployment, monitoring, and continuous improvement \nMake sound architectural and methodological decisions for ML systems on AWS, balancing robustness, observability, cost, and long-term maintainability \nPartner closely with Product, Engineering, and Business leaders to turn ambiguous problems into ML-enabled product solutions with clear outcomes \nOperate and evolve ML systems deployed across multiple countries and markets, accounting for differences in data distributions, regulations, and constraints \nMentor other data scientists through hands-on technical guidance, design reviews, and shared ownership of systems \nWhat you’ll need \nAdvanced degree in Computer Science, Engineering, Mathematics, or a comparable field \n6+ years of experience building and owning production ML systems end-to-end in a real-world environment \nStrong hands-on expertise in Python and modern ML frameworks, with the ability to ship, operate, and evolve ML systems in production \nSolid experience with AWS and MLOps practices, including deployment, monitoring, and operating ML systems at scale \nPractical experience applying GenAI / LLMs in applied or production contexts, with a clear understanding of trade-offs and limitations \nAbility to influence technical decisions through clear judgment and collaboration, not formal authority \nExperience supporting and guiding more junior data scientists through hands-on collaboration, code reviews, and technical feedback \nStrong sense of ownership and accountability for outcomes, with a pragmatic approach to trade-offs and delivery \nWhat’s in it for you \nWe understand that there is life at work and life outside of work. Here are a few benefits that support us to be our creative best. \nGym discounts \nEmployee and Family Assistance program \nVirtual wellness events \nConferences & training budget \nRegular internal training programs \nFinancial planning with 3% matching Pension \nCompetitive salary \nAnnual bonus structure \nThe base salary range for this position is CAD $130k - $180k. \nThis range reflects the expected compensation at the time of posting. The final offer may vary and can be higher based on relevant skills, experience, location, and market conditions. Based on the role, the total rewards package may also include benefits, bonus, and other employee offerings. \nUse of Artificial Intelligence in Hiring: We use artificial intelligence (“AI”) in our hiring process, including to screen, assess, or select applicants for this position.\nVacancy Status: This job posting is for an existing vacancy. \nUse of Artificial Intelligence in Hiring: We use artificial intelligence (“AI”) in our hiring process, including to screen, assess, or select applicants for this position.\nVacancy Status: This job posting is for an existing vacancy.","description_format":"text","description_chars":3977,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Marketplaces","Online Classifieds","Automotive Software"],"lifecycle":[{"event":"open","at":"2026-02-12T08:32:18Z"}],"visa":[],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.3,"p_room":0.28,"age_days":253,"expected_fill_days":57,"reasons":["conf:2","velocity","ghost","win:tail","crowd:"],"computed_at":"2026-10-24T06:02:35Z"},"pay":null,"html_url":"https://alion.io/job/trader-senior-data-scientist-toronto-mfd","json_url":"https://alion.io/job/trader-senior-data-scientist-toronto-mfd.json","meta":{"generated_at":"2026-10-24T15:00:34Z","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":21333,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-25T00:00:00Z"}},"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":20425},"rest":"https://alion.io/mcp/rest/get_company?id=20425"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftrader-senior-data-scientist-toronto-mfd"},{"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%2Ftrader-senior-data-scientist-toronto-mfd"},{"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%2Ftrader-senior-data-scientist-toronto-mfd"},{"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/trader-senior-data-scientist-toronto-mfd\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftrader-senior-data-scientist-toronto-mfd"}]}