{"id":201404,"url":"https://alion.io/job/index-exchange-senior-machine-learning-engineer","title":"Senior Machine Learning Engineer","company":{"id":94136,"name":"Index Exchange","domain":"indexexchange.com","url":"https://alion.io/company/index-exchange","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Gem","truth_index":{"grade":"A","score":88,"open_postings":24,"ghost_share":0.125,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":92,"computed_at":"2026-10-24T06:02:35Z"}},"role":"AI/ML","role_family":"AI/ML","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":90000,"max_usd":156000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":65},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"CI/CD","optional":false},{"name":"Go","optional":false},{"name":"Machine Learning","optional":false}],"status":"live","first_seen_at":"2026-04-16T17:05:38Z","employer_posted_date":"2026-05-25","last_verified_at":"2026-10-24T20:30:42Z","board_verified":true,"closed_at":null,"days_open":191,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":190},"description":"At Index Exchange, we’re reinventing how digital advertising works-at scale. As a global advertising supply-side platform, we empower the world’s leading media owners and marketers to thrive in a programmatic, privacy-first ecosystem.\nWe’re a proud industry pioneer with over 20 years of experience accelerating the ad technology evolution. Our proprietary tech is trusted by some of the world’s largest brands and media owners and plays a crucial role in keeping the internet open, accessible, and largely free.\nWe process more than 550 billion real-time auctions every day (in comparison, Google processes 8.5 billion searches per day) with ultra-low latency. Our platform is vertically integrated from servers to networks and runs primarily on our own metal and cloud infrastructure. This end-to-end infrastructure is designed to provide both stability and agility, enabling us to adapt quickly as the market evolves.\nAt the core of it all is our engineering-first culture. Our engineers tackle internet-scale problems across tight-knit, global teams. From moving petabytes of data and optimizing with AI to making real-time infrastructure decisions, Indexers have the agency and influence to shape the future of advertising. We move fast, build thoughtfully, and stay grounded in our core values.\nAbout the role:\nWe’re looking for a Senior Machine Learning Engineer who can bring their depth and breadth of experience in applied data science and optimization at industry scale to help guide our Index-wide technology strategy for machine learning and optimization, and to drive pragmatic execution and iterative improvement of the same.\nWhat we are looking for:\nDesign and implement enterprise-scale MLOps systems and platforms (including data ingestion, feature pipelines, model training, validation, deployment and monitoring), setting standards for high-performance ML products. \nProductionalize and support scalable and efficient Machine Learning models and solutions. \nDefine and enforce standards for model lifecycle management, including versioning, monitoring, alerting, traceability and highly available low-latency inference systems. \nRefine and contribute to advanced data management strategies, optimizing for performance given extensive data loads. \nMentor teams and provide guidance for machine learning engineering deployment practices, promoting a culture of excellence. \nNavigate complex problem-solving situations, contributing to decisions that affect the broader business's strategic direction. \nUtilize CI/CD best practices to ensure the enterprise keeps with innovative practices and remains efficient, through engagement with ML and MLOps evolution outside of the organization. \nEnable safe deployment strategies like shadow, canaries & gradual rollout \nHere's what you need:\nAdvanced degree in Computer Science, Engineering, or a related field, or equivalent experience. \nExpertise in high-performance backend technologies, preferably including Golang. \nExtensive experience with cloud and/or on-premises distributed systems, data-intensive applications, and large-scale backend system design. \nDeep knowledge of machine learning operationalization, including current trends, tools, and frameworks. \nProven problem-solving prowess, capable of pioneering novel solutions to sophisticated technical challenges. \nExperienced in software development, deployment, and continuous improvement of complex CI/CD pipelines. \nA love of technology, or thirst for knowledge, or curiosity about the world, or a desire to solve the hardest problems. \nWhy you’ll love working here:\nComprehensive health, dental, and vision plans for you and your dependents \nPaid time off, health days, and personal obligation days plus flexible work schedules \nCompetitive retirement matching plans \nEquity packages \nGenerous parental leave available to birthing, non-birthing, and adoptive parents \nAnnual well-being allowance plus fitness discounts and group wellness activities \nCommuter benefits and discounts, where available \nEmployee assistance program \nMental health first aid program that provides an in-the-moment point of contact and reassurance \nOne day of volunteer time off per year and a donation-matching program \nMonthly town halls and regular community-led team events \nMultiple resources and programming to support continuous learning \nA workplace that supports a diverse, equitable, and inclusive environment - learn more here\nEqual employment opportunity\nAt Index Exchange, we believe that successful products are built by teams just as diverse as the audience who uses them. As such, we are committed to equal employment opportunities. We celebrate diversity of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or expression, or veteran status. Additionally, we realize that diversity is deeper than any status or classification-diversity is the human experience. For those who show grit, passion, and humility-Index will welcome you.\nAccessibility for applicants with disabilities\nIndex Exchange welcomes and encourages individuals with disabilities to apply to work with us.\nIf you require an accommodation, please share the details of your request and any information how we can assist you with the hiring recruiter when they contact you. Index Exchange will make reasonable efforts to ensure accommodation requests are met throughout the recruitment process.\nIndex everywhere, Index anywhere\nOur corporate headquarters are in Toronto, with major offices in New York, Montreal, Kitchener, London, Berlin, San Francisco, and many other global cities. As a major global advertising exchange, we are committed to operating as a tightly knit global team and embracing and empowering talent wherever our colleagues may be.\n#LI-ONSITE","description_format":"text","description_chars":5837,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Continuous learning","Equity","Flexible schedule","Parental leave","Retirement plans"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Advertising"],"lifecycle":[{"event":"open","at":"2026-09-04T14:16:15Z"}],"visa":[{"country":"CA","licensed_sponsor":true,"evidence":"Positions approved through LMIA in 12 months: 1","filings_12m":1,"filings_prev_12m":0,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Global Talent Stream","cap_exempt":false,"checked_at":"2026-10-03T21:10:52+00:00","sources":["ESDC: employers issued a positive LMIA"],"filings_for_role_12m":1}],"liveness":{"score":17,"band":"cold","label":"Long shot","p_open":1,"p_active":0.607,"p_room":0.28,"age_days":190,"expected_fill_days":92,"reasons":["conf:1","win:tail","crowd:"],"computed_at":"2026-10-24T06:02:35Z"},"pay":null,"html_url":"https://alion.io/job/index-exchange-senior-machine-learning-engineer","json_url":"https://alion.io/job/index-exchange-senior-machine-learning-engineer.json","meta":{"generated_at":"2026-10-24T23:06:06Z","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":33921,"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":94136},"rest":"https://alion.io/mcp/rest/get_company?id=94136"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Findex-exchange-senior-machine-learning-engineer"},{"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%2Findex-exchange-senior-machine-learning-engineer"},{"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%2Findex-exchange-senior-machine-learning-engineer"},{"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/index-exchange-senior-machine-learning-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Findex-exchange-senior-machine-learning-engineer"}]}