Block · 18 hours ago
Staff Machine Learning Engineer, Predictive Systems
United States
Full-time
Remote
Lead/Staff
$277K/yr - $415K/yrBlock is a company focused on building technology to increase access to the global economy. They are seeking a Staff Machine Learning Engineer on the Predictive Systems team to drive the technical strategy for ML and decisioning systems that address risk, fraud, and abuse across Block, ensuring rapid deployment of features while maintaining a trusted ecosystem.
Financial Services
Responsibilities
Act as a technical lead across multiple Risk ML engineering teams, setting direction for how ML and AI solutions are applied to fraud, abuse, and risk decisioning
Design and evolve real-time and batch ML systems that leverage Block's core ML platforms to deliver scalable risk solutions
Drive architectural decisions around feature usage, contextual signals, and ML-driven controls in partnership with modeling, product, and platform teams
Translate ambiguous risk problems into clear technical strategies and execution plans
Lead cross-team efforts to integrate new data sources, signals, and event hooks into production risk systems
Establish standards for data quality, observability, and correctness for ML inputs and decisions
Provide technical leadership during emerging threat and SEV scenarios, guiding rapid mitigation while preserving long-term system health
Influence ML and AI engineering practices across Risk, improving consistency, reliability, and velocity
Qualification
Required
Extensive experience designing and leading large-scale ML systems with broad organizational impact
A proven ability to set technical vision and drive alignment across multiple teams and disciplines
Deep understanding of ML systems, data platforms, and real-time decisioning at scale
Strong judgment in navigating complex tradeoffs involving risk, trust, and product velocity
A history of mentoring senior engineers and developing future technical leaders
A systems-level mindset and a bias toward durable, high-leverage solutions
Preferred
Python, Java and Kotlin
Tensorflow and PyTorch
AWS, Databricks and Kubernetes
MySQL, DynamoDB, Kafka, Spark
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
Block
Block is one company built from many blocks, all united by the same purpose of economic empowerment.
Founded in 1990
10001+ employees
H1B Sponsorship
Block has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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Trends of Total Sponsorships
2025 (257)
2024 (253)
2023 (260)
2022 (297)
Funding
Current Stage
Late StageLeadership Team
Amrita Ahuja
Chief Financial Officer
Lookman Olusanya
CFO, Square
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