Machine Learning Engineer - Trust and Safety (Account Trust)

The Trust and Safety group at Apple is responsible for ensuring that users of Apple’s services and products have genuine and safe experiences. Within Trust and Safety, our team works to protect Apple’s communication apps and related platforms from spam and other abuse. The solutions we deploy help us keep Apple ecosystem safe, while mitigating constant attack by external actors.
We are seeking a machine learning engineer who will strive to turn data into actionable insights that improve safe customer experience. Successful candidates will have a demonstrated history of self-directed research and investigations spanning sophisticated, interdependent systems that led to novel insights directly impacting well-defined success metrics.
Description
Success in this role is defined by your ability to:

• Simplify complex systems and work with technical and non-technical stakeholders to build solutions to align for specific use cases.

• Build machine learning tooling to facilitate various phases of the ML lifecycle from model training, data ETL, end-to-end model evaluation and deployment.

• Deliver reusable and easy-to-use tooling to integrate with existing data and machine learning systems.

• Build strong partnerships to close data gaps and mitigate attack vectors.

• Identify weaknesses, propose better fraud-fighting tools, and anticipate attacker adaptations.

This role requires exceptional collaboration across Data Science, Software Engineering, and Machine Learning Research.
You’ll work with partner teams to develop strategic, long-term fraud prevention solutions while continuously enhancing your software engineering and machine learning expertise.
Preferred Qualifications
5+ years experience with Python, Scala, Java, or similar, including relevant libraries (e.g., scikit-learn, TensorFlow, PyTorch, Spark MLlib).
5+ years of industry software development experience using source control (e.g., Git).
Advanced degree (MS/PhD) in a quantitative field (Computer Science, Statistics, Mathematics, Operations Research).
Hands-on experience implementing machine learning solutions (classifiers, clustering, anomaly detection).
Experience building scalable deep learning systems.
Experience with large scale data infrastructure.
Curiosity, integrity, and a passion for learning and enhancing the Apple customer experience.
Excellent interpersonal, written, and verbal communication skills
Curiosity, passion for learning, high personal integrity, and a dedication to improving the Apple customer experience
Minimum Qualifications
Proven experience in anti-fraud (or similar) with at least two complex investigations in incomplete data environments, demonstrating initiative and measurable impact.
Strong understanding of machine learning algorithms (including classifiers, clustering algorithms, and anomaly detection), especially in the context of LLMs.
3+ years of proficiency in Python, including machine learning packages like Jax/Tensorflow or PyTorch.
3+ years of experience with big data tools (SQL, Spark, Splunk, Python, Jupyter Notebook).
Experience collaborating across engineering and non-engineering teams.
Strong interpersonal verbal and written communication skills with the ability to work effectively across internal and external organizations and virtual teams.
BS/BA or equivalent degree in computer science or similar (preferred).
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Pay & Benefits
At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $181,100 and $318,400, and your base pay will depend on your skills, qualifications, experience, and location.
Apple employees also have the opportunity to become an Apple shareholder through participation in Apple's discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple's Employee Stock Purchase Plan. You'll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses - including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Apple Benefits
Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.