[Remote] Machine Learning Engineer

Note: The job is a remote job and is open to candidates in USA. Sardine is a leader in fraud prevention and AML compliance, utilizing advanced technologies to combat identity fraud and payment scams. The Machine Learning Engineer will design systems for fraud detection, build and optimize data pipelines, and deploy ML models to ensure reliable and efficient operation in production environments.ResponsibilitiesBuild and optimize data pipelines and backend services to process device and behavioral data in real timeDevelop and deploy ML models for fraud detection, ensuring they run reliably and efficiently in productionTurn raw data into production-ready features that feed our fraud detection systemsCollaborate with platform and backend engineers to integrate models seamlesslyMaintain high standards of security, privacy, and complianceChampion best practices in testing, documentation, and observabilitySkills5+ years in software engineering, with strong backend experience (Go or Python)Hands-on experience with applied ML using large datasets (PyTorch, Scikit-learn, etc.)Strong SQL skills and familiarity with relational and non-relational databasesExperience with end-to-end ML systems: feature pipelines, model deployment, monitoring, and iterationExcellent communication skills in English, both written and verbalBachelor's or Master's in Computer Science, Engineering, or a related disciplineDomain knowledge in fraud, risk, or cybersecurityFamiliarity with CI/CD, Docker, Kubernetes and the modern devops frameworkUnderstanding of modern browser APIs and high-entropy data collection techniquesFamiliarity with leveraging frontier LLMs for automationBenefitsGenerous compensation in cash and equityEarly exercise for all options, including pre-vestedWork from anywhere: Remote-first CultureFlexible paid time off and Year-end breakHealth insurance, dental, and vision coverage for employees and dependents - •US and Canada specific•4% matching in 401k / RRSP - •US and Canada specific•MacBook Pro delivered to your doorOne-time stipend to set up a home office — desk, chair, screen, etc.Monthly meal stipendMonthly social meet-up stipendAnnual health and wellness stipendAnnual Learning stipendCompany OverviewSardine is a fraud prevention and compliance software company for the digital economy. It was founded in 2020, and is headquartered in Miami, Florida, USA, with a workforce of 201-500 employees. Its website is https://www.sardine.ai.Company H1B SponsorshipSardine has a track record of offering H1B sponsorships, with 1 in 2026, 6 in 2025, 1 in 2024, 3 in 2023, 7 in 2022, 1 in 2021, 2 in 2020. Please note that this does not guarantee sponsorship for this specific role.