Clera

Research Engineer, Privacy and Anonymization

San Francisco
Salary
$130,000 - $225,000 annually
Level
Mid
Work type
On-site · San Francisco
Visa
Sponsors visas

Open. First seen 28 October 2026.

Apply on the company's site →

About the role

About the Role

Join a team building privacy and anonymization systems for sensitive real-world data used in AI training. You will develop methods that protect personal and confidential information while preserving the structure and signal that make data useful.

What You'll Do

  • Build systems to detect PII, quasi-identifiers, credentials, and other sensitive information, then select transformations suited to each data type and use case.
  • Develop and benchmark detection methods combining rules, statistical models, classifiers, and LLM-based approaches.
  • Create production pipelines that anonymize data before downstream processing, training, evaluation, or synthetic data generation.
  • Build evaluation frameworks for privacy risk and retained data utility, including leakage tests and adversarial re-identification attempts.
  • Design robust systems that handle new data sources, schema drift, unusual formats, and sensitive information in unexpected fields.
  • Work with engineering, research, operations, and customers to turn privacy requirements into practical safeguards.

What We're Looking For

  • At least 2 years of experience building production data or ML systems in Python, with hands-on experience transforming PII while preserving useful data characteristics.
  • Experience with PII detection, removal, or anonymization, and with information extraction, named-entity recognition, classification, or related techniques.
  • Experience building end-to-end data processing pipelines and benchmarking approaches across recall, precision, latency, cost, and data utility.
  • Understanding of redaction, masking, pseudonymization, anonymization, and synthetic data generation.
  • Experience with privacy-enhancing technologies such as differential privacy, k-anonymity, secure aggregation, or format-preserving encryption.
  • Strong experimental judgment and attention to edge cases; experience with sensitive data or high-throughput ML and data systems is valuable.

Compensation & Benefits

Base salary: $130,000 to $225,000 annually. Visa sponsorship is available.

Location

On-site in San Francisco, California, United States.

What this role asks for

Standard for software engineering roles

Python

Common in software engineering postings at any company.

Compared with Clera's other open jobs.

The team: Engineering HIRES STEADILY

This role is one of 210 open in Engineering. 144 were posted in the last 30 days and the oldest in March: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

LLM (103 of 210), TypeScript (95 of 210), Python (82 of 210), React (81 of 210), Machine Learning (42 of 210), PostgreSQL (39 of 210), JavaScript (36 of 210)

OTHER ROLES ON THIS TEAM

From the team and dates on Clera's own job board.

Other openings for this role

3 postings for this role in San Francisco since 1 October 2026, 1 still open. None has been taken down and posted again.

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SKILLSPython 46,045Machine Learning 19,787LLM 18,620
PLACESSan Francisco 7,847United States 72,210
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