> Markdown version of [/jobs/ext/4618943-senior-machine-learning-engineer-data-classification](https://www.wearedevelopers.com/jobs/ext/4618943-senior-machine-learning-engineer-data-classification). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Machine Learning Engineer -- Data Classification

- **Company:** SYMOSIS SECURITY LLC
- **Location:** San Francisco, CA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $110,000.0 - $130,000.0
- **Contract:** Permanent contract
- **Skills:** Automation of Tests, Information Leak Prevention, Software Debugging, Python (Programming Language), Machine Learning, Software Engineering, SQL Databases, Toolchain, Data Classification, Model Validation, Git
- **Published:** November 7, 2026
- **Apply:** https://www.thejobnetwork.com/job/6b7052d4-4e15-4ce8-8207-a32d0c7528b6/senior-machine-learning-engineer-data-classification

## About the Role

* 5+ years of relevant ML or software engineering experience, including hands-on classification work.
\n

 * Strong Python, SQL, Git, debugging, and automated testing skills.
\n

 * Demonstrated experience personally building or improving classification systems.
\n

 * Practical understanding of precision, recall, overfitting, data leakage, and validation.
\n

 * Experience working within existing enterprise codebases and toolchains.
\n

 * Ability to translate analytical findings into tested engineering changes.