Senior Level SQL Annotator
- Job Type Remote
- Qualification BA/BSc/HND
- Experience 7 years
- Location Nigeria
- Job Field Data, Business Analysis and AI 
Job Summary
- We are seeking an experience senior python Developer to architect, build, and maintain high-performance backend systems and APIs.
- In this role, you will lead technical design decisions, write clean and scalable production code, and mentor junior engineers while collaborating with cross-functional teams to deliver robust software solutions.
Responsibilities
- Review, annotate and evaluate AI-generated SQL responses for correctness, clarity, query logic, joins, syntax, performance, security, and readability.
- Create detailed prompts and reference solutions to guide AI learning on complex data challenges.
- Assess solutions for accuracy, adherence to prompts, and identify errors in methodology, query structure, indexing strategy, or conceptual understanding.
- Deliver clear, constructive feedback and detailed technical explanations to support continuous model improvement.
- Run and validate proof-of-work code, fact check data-related claims, and rate/compared AI responses based on reasoning quality.
- Build automated SQL audit queries that can scan the annotated dataset daily to flag duplicates, conflicting labels, null values, or out of distribution samples before they reach the ML Team.
- Partner with ML Engineers to test proposed annotation guidelines against actual database records.
Requirements
- 7+ years of professional experience working with SQL in production with SQL in production environments as a Database Engineer, SQL Developer, Data Engineer, or similar role.
- Bachelors’ degree or higher in computer science, information systems, Engineering, mathematics, or a related technical field
- Expert-level proficiency in SQL, including complex joins, windows functions, aggregation strategies, query plan analysis, and performance tuning.
- Hands-on experience designing relational data models, schemas, and data warehouse structures (star and snowflake schemas).
- Exceptional written and spoken English (c1 level or higher) with the ability to write clear technical explanations,
- A methodical, systematic approach to evaluating reasoning quality and identifying subtle data or query issues.
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Method of Application
