Drilling Data Quality Validation Engineer

Data Quality Engineer – Drilling Document Processing & Validation
Urgent Requirement: Data Quality Engineer – Drilling Technical Documents & Data Validation
We are looking for a Data Quality Engineer to inspect, validate, and quality-control extracted drilling records (DDRs and technical reports) ensuring full lineage and compliance with enterprise data standards.
Mandatory requirements:
1. Data QC, Validation & Verification
• Bachelor’s degree in Computer Science, Information Systems, Data Science, Petroleum Engineering, or related area.
• At least 3 years of experience in data quality, data validation, or technical document-processing projects.
• Strong ability to critically review extracted data against source PDFs and operational reference data to identify discrepancies, hallucinated values, and extraction errors.
• Hands-on experience resolving missing, incomplete, inconsistent, and duplicate records across complex engineering datasets.
• Deep understanding of data lineage: ensuring every single extracted field has documented traceability back to its specific source document and page number.
• Experience preparing validated result packages and discrepancy logs for validation and sign-off by Drilling SMEs.
2. Technical Tooling & Databases
• Solid Python skills for automated data validation scripts, quality checks, and reconciliation routines.
• Proficient SQL skills for querying, inspecting, and reconciling relational tables in PostgreSQL or Microsoft SQL Server.
• Hands-on exposure to OCR, PDF text extraction tools, and LLM-assisted data extraction workflows.
• Clear documentation habits: logging extraction rules, QC results, edge cases, and discrepancy logs.
• Familiarity with Upstream Oil & Gas drilling terminology (DDRs, casing, bits, mud, rig activities) and Azure cloud is a plus.
• Professional English communication skills (mandatory); Portuguese proficiency is a plus.
• Availability for an online technical interview in English.
• Availability to join the project if the contract is awarded.
Interested candidates should submit:
• Updated CV in English;
• Availability;
• Expected daily or monthly rate;
• Location and time zone;
• Summary of past data quality, auditing, or document validation experience.