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# Lead Machine Learning Engineer -- Data Classification & Security

- **Company:** SYMOSIS SECURITY LLC
- **Location:** San Francisco, CA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $135,000.0 - $155,000.0
- **Contract:** Permanent contract
- **Skills:** Automation of Tests, Code Review, Software Debugging, Python (Programming Language), Machine Learning, SQL Databases, Toolchain, Data Classification, Model Validation
- **Published:** November 7, 2026
- **Apply:** https://www.thejobnetwork.com/job/095b9051-1f7c-4b46-b80d-010fce2254de/lead-machine-learning-engineer-data-classification-security

## About the Role

* 8+ years of relevant software or ML engineering experience, including technical leadership.
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 * Demonstrated ownership of classification systems from evaluation through deployment.
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 * Strong Python, SQL, debugging, code review, and automated testing skills.
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 * Experience with rule-based and/or ML-based classification systems.
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 * Practical understanding of precision, recall, sampling bias, overfitting, and validation.
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 * Ability to work within existing enterprise codebases and toolchains.