Coding Expert - SQL (Contract)

Coding Expert - SQL (Contract)

Recommended prerequisites:

Software Engineering - SQL

 Remote (United States preferred)

Quick facts

• Engagement | Hourly, at‑will contractor
• Schedule | Fully remote & asynchronous (min. 15 hrs/week)
• Pay Range (US) | $25 – $100 per hour
• Start Date | Rolling — staffed as projects launch

What you’ll do

• Evaluate AI-generated SQL queries for accuracy, performance, and best practices.
• Write SQL queries across a range of relational database systems.
• Explain your approach and highlight reasoning in plain English.
• Flag common errors in joins, filters, aggregations, or schema assumptions.

You’re a great fit if

• Fluent in English with clear analytical thinking.
  Expertise in SQL: Proficient in writing complex queries, understanding indexing, and normalizing databases.
• 3-5 years of experience with databases such as MySQL, PostgreSQL, SQL Server, or Oracle is a plus.
• Bachelor’s degree (or pursuing one) in Computer Science, Data Science, or related field.
• Bonus: Experience with data labeling, RLHF, or other AI training projects

About the role

• Flexible workload — work from anywhere, on your own schedule
• High impact — your craft directly improves models used by top AI labs & Fortune 500 teams
• Clear ownership — know exactly what success looks like and have autonomy to deliver
• Growth potential — consistent high performers spearhead new programs and mentor incoming SMEs

Interview process

• Complete a screening with Zara, our AI interviewer in English, to learn more about your background and experience.
• Domain-specific Zara interview to assess your SQL expertise, including performance optimization (indexing, query plans), data modeling, and advanced SQL features like window functions, CTEs, and transaction management.