Data Engineer for AI Security Data Platform & Compliance

Refractal; Greater London; Vor Ort; GBP 80.000 - 135.000; Vollzeit

Benefits dieser Stelle

Equity

Pension

Private medical and dental cover

Visa and relocation support

Zusammenfassung

Refractal, a UK-based AI security company, is hiring a data engineer to build and govern the evidence store powering audits and compliance.

You will own production data pipelines, design robust data models for multi-tenant environments, and collaborate with data scientists and security engineers to create provenance-rich training datasets. The role offers equity, pension, private medical cover, and visa support.

Qualifikationen

• 6+ years in data engineering with ownership of production pipelines.
• Strong Python and SQL skills, with PostgreSQL experience.
• Experience with streaming and orchestration tools (Kafka, Airflow, Dagster).
• Data modelling for audit trails, lineage and multi-tenant isolation.
• Security-minded handling of sensitive data; familiarity with UK GDPR is a plus.

Aufgaben

• Design the data model for an append-only, cryptographically signed evidence store.
• Build streaming and batch processing to turn ingested activity into queryable data.
• Own data quality, retention, residency, and deletion controls for regulated customers.
• Create training and evaluation datasets with data scientists and security engineers.
• Enable quick compliance reporting against EU AI Act, NIST AI RMF, and ISO/IEC 42001.
• Ensure the evidence store is in production, documented, and trusted by customers' auditors.
• Answer compliance and detection questions from data you own, avoiding ad hoc work.
• Maintain provenance and separation for training/evaluation data.

Kenntnisse

Python

SQL

PostgreSQL

Data warehouse

Kafka

Airflow

Dagster

Tools

Kafka

Airflow

Dagster

Jobbeschreibung

Refractal, a UK-based AI security company, is hiring a data engineer to build and govern the evidence store powering audits and compliance.

You will own production data pipelines, design robust data models for multi-tenant environments, and collaborate with data scientists and security engineers to create provenance-rich training datasets. The role offers equity, pension, private medical cover, and visa support.