[Remote] Staff Machine Learning Engineer, Risk Signals & Controls

Note: The job is a remote job and is open to candidates in USA. Block is a company that builds technology to increase access to the global economy. They are seeking a Staff Machine Learning Engineer to power risk decisions with trusted signals and lean models, focusing on building efficient tools for fraud detection and model effectiveness. Responsibilities • Design, build, and maintain data pipelines to ingest third parties and Block data to enhance our feature store and modeling capabilities • Design elegant ML pipelines and services, prototype new approaches, and productionize solutions at scale • Build tooling to help maintain our features and models, gaining efficiencies in fraud detection • Work hand-in-hand with ML Modelers to identify and integrate new data sources, heuristics and models • Solve challenging technical problems at scale, collaborating with colleagues located across the globe • Apply ML and engineering best practices to shape how Block develops, tests, and maintains ML-platform solutions • Ensure data quality and completeness through automated validation, monitoring, and alerting • Own your solutions from design through to operation: we all share the pager! Skills • 12+ years of experience in software development and demonstrated technical initiative and leadership on previous machine learning projects • A proven ability to shape how teams effectively adopt and evolve AI practices; driving adoption of AI-first workflows by coaching leaders, identifying scalable use cases, and embedding quality and accountability in team norms • Work autonomously in a fast paced, ambiguous and unpredictable environment • Natural curiosity & eagerness to learn • Show the ability to take initiative, lead, and drive creative solutions in cross-team contexts • A strong interest in owning your solutions, maintaining and fixing them as necessary • Communicate via clear and concise writing to facilitate asynchronous collaboration across multiple time zones • Reason about complex, distributed systems at high scale • Proficiency in machine learning techniques, experimental design and data engineering • Strong programming skills in languages such as Kotlin, Python, TensorFlow, or PyTorch Benefits • Healthcare coverage (Medical, Vision and Dental insurance) • Health Savings Account and Flexible Spending Account • Retirement Plans including company match • Employee Stock Purchase Program • Wellness programs, including access to mental health, 1:1 financial planners, and a monthly wellness allowance • Paid parental and caregiving leave • Paid time off (including 12 paid holidays) • Paid sick leave (1 hour per 26 hours worked (max 80 hours per calendar year to the extent legally permissible) for non-exempt employees and covered by our Flexible Time Off policy for exempt employees) • Learning and Development resources • Paid Life insurance, AD&D, and disability benefits Company Overview • Block is one company built from many blocks, all united by the same purpose of economic empowerment. It was founded in 1990, and is headquartered in Oakland, California, US, with a workforce of 10001+ employees. Its website is Company H1B Sponsorship • Block has a track record of offering H1B sponsorships, with 227 in 2025, 253 in 2024, 260 in 2023, 297 in 2022. Please note that this does not guarantee sponsorship for this specific role. Apply tot his job