Remote SQL Engineer for AI Data Quality & Optimization

Joinkeywork; United States; Remote; USD 83,000 - 165,000; Part time

Job summary

SME Careers is seeking a highly skilled SQL Engineer for a fully remote, hourly contractor role. You will review AI-generated SQL queries, database designs, and data-processing logic, and provide high-quality reference solutions and explanations.

You'll assess solutions for accuracy and clarity, identify issues in query structures and indexing, and write step-by-step explanations and model solutions that demonstrate correct methods, contributing to the performance and reliability of AI training

Qualifications

• Bachelor’s degree or higher in Computer Science, Information Systems, Engineering, Mathematics, or a closely related technical field.
• 7+ years of professional experience working with SQL in production environments as a Database Engineer, SQL Developer, Data Engineer, or similar role.
• Expert-level proficiency in SQL, including complex joins, window functions, aggregation strategies, and query plan analysis.
• Demonstrated experience with database performance tuning, indexing strategies, and troubleshooting concurrency or locking issues.
• Hands-on experience designing relational data models, schemas, and data warehouse structures (star and snowflake schemas).
• Strong experience with ETL/ELT processes and tooling, as well as working with large-scale data in modern cloud or on-prem data platforms.
• Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English-language guidelines.
• Comfort with version control, CI/CD practices, and collaborative workflows for managing database changes.
• Previous experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus.

Responsibilities

• Develop AI Training Content: Create detailed prompts in various topics and responses to guide AI learning, ensuring the models reflect a comprehensive understanding of diverse subjects.
• Optimize AI Performance: Evaluate and rank AI responses to enhance the model's accuracy, fluency, and contextual relevance.
• Ensure Model Integrity: Test AI models for potential inaccuracies or biases, validating their reliability across use cases.

Skills

SQL mastery

Query plan analysis

Database performance tuning

Data modeling

ETL/ELT tooling

Education

Bachelor’s degree or higher in CS/IS/Engineering/Math

Tools

CI/CD tools

Version control

Job description

SME Careers is seeking a highly skilled SQL Engineer for a fully remote, hourly contractor role. You will review AI-generated SQL queries, database designs, and data-processing logic, and provide high-quality reference solutions and explanations.

You'll assess solutions for accuracy and clarity, identify issues in query structures and indexing, and write step-by-step explanations and model solutions that demonstrate correct methods, contributing to the performance and reliability of AI training