Founding Engineer: ML Signals
2 weeks ago
AdZeta is an end-to-end data‑intelligence & activation platform that helps advertisers acquire high-value customers using the power of predictive LTV modeling.Team: Data Science & ML/ Activation (pLTV)Type: Full-time (open to Senior, Staff, or Principal leveling)The Mission:The right candidate will own the end-to-end pipeline that converts predictions into bid-ready, calibrated pLTV signals, and reliably activates those signals across Meta (CAPI), Google (OCI/Enhanced Conversions + Value Adjustments) and Amazon (AMC→DSP). You'll build resilient GCP pipelines, shape/monitor predictions, and ship server-side conversions that move ROAS, not just dashboards.Roles & ResponsibilitiesFeature & modeling interfacePartner with ML to operationalize user-level pLTV features (RFM, product mix, acquisition metadata) with point-in-time joins.Productionize Vertex AI training & batch/online scoring (Pipelines, Feature Store, Model Registry).Own calibration (decile calibration tables, winsorization, shrinkage) for stable platform learning.Server-side activationBuild stateless "signal translators" on Cloud Run for Meta CAPI, Google OCI/EC + Conversion Value Adjustments, and Amazon AMC Inputs/Audiences.Ensure dedupe (event_id parity), rate-limiting, idempotency, and retry/Replay mechanics with DLQs.Maintain secrets/keys, rotate tokens, and validate payloads (test modes, acceptance checks).Observability, reliability, and safetyShip SLOs & alerts: data freshness, EMQ/match rates, adjustment acceptance rates, API error spikes, queue lag, drift.Operate kill-switches and fallbacks: immediate revenue mode, decile throttling, shadow testing.Write runbooks for common incidents (schema drift, API 4xx/5xx, value restatement rejections).Experimentation & performanceDesign A/A and A/Bs (holdouts, geo-lift, incrementality) to validate pLTV value vs baseline.Iterate on send timing (D0 vs D1–D7), horizon (H=90/180/365), and value shaping; quantify impact on tROAS/CAC.What You'll Own (KPIs)Meta: Event Match Quality (EMQ), dedupe
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Senior Signaling Engineer, Rail
1 week ago
Toronto, Ontario, Canada WSP Full time $120,000 - $180,000 per yearDescriptionThe Opportunity:WSP is seeking a Senior Signaling Engineer to join our Rail & Transit team. Reporting to Manager, Rail Systems Engineering, the Senior Signals Engineer / Specialist will work collaboratively with a team of Chief Engineers and Specialists across rail systems disciplines (Systems Engineering, Signals, Electrification Systems, Data...
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Senior Signals Engineer, Rail
1 week ago
Toronto, Ontario, Canada Arcadis Full time $112,000 - $162,000 per yearArcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets.We are more than 36,000 people, in over 70 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world's most complex...
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GenAI ML Engineer
1 week ago
Toronto, Ontario, Canada Tata Consultancy Services Full time $120,000 - $180,000 per yearInclusion without Exception:Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our...
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AI/ML Engineer
3 days ago
Toronto, Ontario, Canada Confiar Services LLC Full time $124,800 - $135,200 per yearJob Title: AI/ML EngineerLocation: Toronto, CanadaDuration: Long Term ContractKey ResponsibilitiesDevelop and maintain Python applications using MCP (Model Context Protocol).Integrate MCP with AI/ML models, APIs, and data pipelines.Build scalable real-time and batch AI workflow services.Work with data scientists/ML engineers to deliver AI-driven...
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Senior AI/ML Engineer
3 days ago
Toronto, Ontario, Canada Vanguard Canada Full timeVanguard's Corporate Services department is seeking a Senior AI/ML Engineer to design and deliver scalable machine learning infrastructure and pipelines that enable experimentation, deployment, and monitoring of AI/ML models across the enterprise.This role is ideal for someone with deep technical expertise in building production-grade ML systems and a...
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Founding Engineer
2 weeks ago
Toronto, Ontario, Canada fa7e110a-17b9-44a1-8ca9-e1a332ea8d41 Full time $125,000 - $175,000 per yearAbout UsAt Blair AI, we're rethinking patient and provider communication with AI. We believe that AI is a foundational transformation for how healthcare organizations will operate and behave. We believe in crafting superior experiences for patients and staff alike.We build conversational AI Agents for leading healthcare organizations to automate and enhance...
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AI/ML Engineer
3 days ago
Toronto, Ontario, Canada The Vanguard Group Full time $80,000 - $120,000 per yearVanguard is seeking a talented and motivated AI/ML Engineer to join our team in building agentic systems for IT operations and resilience checking. This role is ideal for early-career professionals who are passionate about AI, autonomous agents, and advanced machine learning techniques. You will work alongside senior data scientists and engineers to develop...
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CoverRight - AI/ML Engineer
2 weeks ago
Toronto, Ontario, Canada 43North Full time $120,000 - $180,000 per yearAbout CoverRight CoverRight is on a mission to make Medicare, and retiree health-related-finances transparent and accessible. We're building technology to empower older adults to confidently navigate their healthcare options through personalized guidance and modern digital experiences. We're a fast-growing, venture-backed company blending human expertise...
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ML Compiler Engineer
1 week ago
Toronto, Ontario, Canada Amazon Web Services (AWS) Full time US$140,000 - US$200,000 per yearDescriptionThe Annapurna Labs team at Amazon Web Services (AWS) builds AWS Neuron, the software development kit used to accelerate deep learning and GenAI workloads on Amazon's custom machine learning accelerators, Inferentia and Trainium.The Product: The AWS Machine Learning accelerators (Inferentia/Trainium) offer unparalleled ML inference and training...
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Engineering Manager, AI/ML
3 days ago
Toronto, Ontario, Canada MaintainX Full time $120,000 - $240,000 per yearMaintainX is the world's leading Asset and Work Intelligence platform for industrial and frontline environments. We are a modern IoT-enabled cloud-based tool for reliability, safety, and operations on physical equipment and facilities. MaintainX powers operational excellence for 12,000+ businesses including Duracell, Univar Solutions Inc., Titan America,...