Machine Learning Engineer (Modeling), Risk

Machine Learning Engineer (Modeling), Risk – Square

Join to apply for the Machine Learning Engineer (Modeling), Risk role at Square.

Block's Chargeback Risk Machine Learning team members build machine learning models and systems to precisely detect, intervene on, and reduce fraudulent activity across Block's Cash App and Square ecosystems. As part of our team, you and your work will safeguard the Cash App and Square ecosystems from financial loss and provide trustworthy and seamless financial experiences for millions of customers and sellers.

You Will

Partner with product, engineering, data science, policy, and operations to design and productionize ML-driven solutions to fight fraud at scale

Become a risk domain expert and lead strategy and planning on your workstreams

Develop tooling and processes to improve the effectiveness and speed of the ML development lifecycle

Investigate and use state-of-the-art modeling algorithms and third-party data sources to boost model performance

Contribute positively to our team culture as a collaborative, empathetic, and reliable teammate

You Have

3+ years of machine learning experience

A degree (preferably graduate level) in Computer Science, Engineering, Statistics, Physics, Applied Math or a related technical field

Hands-on experience independently designing, deploying, and troubleshooting ML solutions using methods such as tree-based models, deep learning, transfer learning, or reinforcement learning

Proficiency in modern ML stacks such as PySpark, PyTorch, MLflow, GCP Vertex AI, workflow orchestration tools (Airflow, Prefect)

Proficiency with containerization, cloud platforms (AWS, GCP), and CI / CD practices

Experience collaborating with cross-functional teams to prioritize, scope, and deploy ML / AI solutions at scale

Experience helping teammates grow through mentorship and providing constructive feedback

A natural sense of curiosity, and experience with Block's mission of economic empowerment

Pay Zones

Zone A : $189,000—$283,600 USD

Zone B : $179,600—$269,400 USD

Zone C : $170,100—$255,100 USD

Zone D : $160,700—$241,100 USD

These ranges may be modified in the future. Pay is determined based on job-related skills, experience, qualifications, work location, and market conditions.

Use of AI in Our Hiring Process

We may use automated AI tools to evaluate job applications for efficiency and consistency. These tools comply with local regulations, including bias audits, and we handle all personal data in accordance with state and local privacy laws. Contact us at privacy@block.xyz with hiring practice or data usage questions.

Benefits

Every benefit we offer is designed with one goal : empowering you to do the best work of your career while building the life you want. Remote work, medical insurance, flexible time off, retirement savings plans, and modern family planning are just some of our offering. Check out our other benefits at Block.

Additional Information

Seniority level : Mid-Senior level

Employment type : Full-time

Job function : Engineering and Information Technology

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