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 5 November 2026.

Apply on the company's site →

About the role

About the Role

Build privacy and anonymization systems for an AI infrastructure team, helping make sensitive real-world data safe and useful for model training. You will own production methods that protect private information while preserving the structure and signal needed for training and evaluation.

What You'll Do

  • Build systems to detect PII, quasi-identifiers, credentials, and other sensitive information, and choose 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 raw data before downstream processing, training, evaluation, or synthetic data generation.
  • Build evaluation frameworks for privacy risk and retained utility, including recall-weighted metrics, leakage tests, and adversarial re-identification attempts.
  • Design robust systems for new data sources, schema drift, unusual formats, and sensitive information in unexpected fields.
  • Partner with engineering, research, operations, and customers to turn privacy requirements into practical policies and safeguards.

What We're Looking For

  • At least 2 years of experience building production data or ML systems in Python.
  • Hands-on experience detecting, removing, or anonymizing PII while preserving useful data characteristics.
  • Experience with information extraction, named-entity recognition, classification, or related techniques for detecting sensitive or rare content.
  • 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.
  • Strong experimental skills and experience handling schema drift, unusual formats, and edge cases.
  • Technical education or equivalent background; experience with privacy-enhancing technologies or sensitive data in healthcare, finance, or security 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 182 open in Engineering. 116 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 (92 of 182), TypeScript (91 of 182), Python (76 of 182), React (76 of 182), Machine Learning (42 of 182), PostgreSQL (36 of 182), Supabase (36 of 182)

OTHER ROLES ON THIS TEAM

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

Posting history

Reposted once since 1 October 2026: a posting for this role in San Francisco was taken down and the role was posted again.

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