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Mercor is hiring: Machine Learning Engineer, Anonymization in San Francisco

Mercor, San Francisco, CA, United States


About the Role As a Machine Learning Engineer focused on Anonymization at Mercor, you will be critical in designing and implementing our industry-best data privacy pipeline. You'll operate at the intersection of advanced ML techniques, sensitive data handling, and robust backend engineering. Your primary focus will be shipping production systems that employ state‑of‑the‑art anonymization and de‑identification methods, maximizing the realism and utility of our vast data network for model training while maintaining the highest standards of regulatory compliance. This role requires bringing deep statistical and modeling rigor to challenging problems in privacy‑preserving data access.
What You’ll Do Own the anonymization platform for the market leader in human data, building systems that enable proprietary data access at enterprise scale without compromising trust.
Design and ship production ML systems for anonymization and de‑identification across multiple data modalities (text, documents, images, audio, video).
Build and maintain the core backend infrastructure and APIs to securely process and serve anonymized data.
Benchmark our anonymization pipeline against state‑of‑the‑art models, industry best practices, and regulatory standards. Define quality metrics and evaluation techniques that generalize to unseen data, continuously running experiments to improve both privacy guarantees and data utility.
Collaborate cross‑functionally with vendors, account stakeholders, Legal, Security, and Engineering teams to translate compliance requirements into robust, model‑driven solutions.
Act as the subject matter expert on data anonymization, flexing between applied ML, complex data pipeline engineering, and driving architectural decisions for data privacy.
What We’re Looking For Strong backend engineering skills (ex. Python/Django or similar) plus a solid foundation in applied ML and statistics.
Proven experience shipping production systems or ML‑driven products end‑to‑end.
High ownership and comfort operating in ambiguous, fast‑changing environments.
Demonstrated knowledge of industry best practices and common frameworks for data privacy and security.
Benefits Generous equity grant vested over 4 years
A $10K housing bonus (if you live within 0.5 miles of our office)
A $1.5K monthly stipend for meals
Free Equinox membership
Health insurance

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