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SQL Engineer

SME Careers

AI Expert - Database Engineering Contractor Ongoing
Brazil, Germany, India, United States Up to $50/hr June 5, 2026

Job description

SME Careers is seeking experienced SQL Engineers to review AI-generated SQL queries, database designs, and data-processing logic while helping train and improve advanced AI models.

Contributors will evaluate technical accuracy, identify errors, create reference solutions, and provide detailed explanations for complex database and data-engineering problems.

This is a fully remote contractor opportunity focused on AI training, evaluation, and benchmarking.

Important Note

There is currently no immediate project available for this role.

Qualified candidates will join SME Careers' expert network and will be prioritized for future SQL and database-related opportunities as they become available.

Key Responsibilities

Review & Evaluate AI-Generated Content

  • Review SQL queries and database solutions generated by AI models

  • Assess solutions for:

    • Accuracy
    • Performance
    • Clarity
    • Prompt adherence

  • Identify issues involving:

    • Query structure
    • Methodology
    • Indexing strategy
    • Database design
    • Conceptual understanding

Create High-Quality Reference Solutions

  • Develop expert-level SQL solutions
  • Write detailed step-by-step explanations
  • Demonstrate best practices and correct methodologies

Compare & Rank AI Responses

  • Evaluate multiple AI-generated outputs
  • Rank responses based on:
    • Correctness
    • Efficiency
    • Performance
    • Reasoning quality

Support AI Model Improvement

  • Create prompts and training content
  • Help improve model accuracy and contextual understanding
  • Test models for inaccuracies, reasoning errors, and bias

Required Qualifications

  • Bachelor's degree or higher in:

    • Computer Science
    • Information Systems
    • Engineering
    • Mathematics
    • Related technical disciplines

  • 7+ years of professional SQL experience in production environments

Technical Expertise

  • Advanced SQL
  • Complex joins
  • Window functions
  • Aggregation strategies
  • Query execution plan analysis
  • Database performance tuning
  • Indexing strategies
  • Concurrency and locking troubleshooting

Data Engineering Experience

  • Relational database design
  • Schema design
  • Data warehousing
  • Star schemas
  • Snowflake schemas
  • ETL/ELT pipelines
  • Large-scale data platforms

Additional Requirements

  • Minimum C1 English proficiency
  • Strong technical writing skills
  • Experience with:
    • Version control
    • CI/CD workflows
    • Collaborative database development

Preferred Qualifications

  • AI data training experience
  • AI content evaluation experience
  • Technical annotation experience
  • Reviewing AI-generated technical outputs

Skills & Technologies

  • SQL
  • Query Optimization
  • Database Performance Tuning
  • Data Modeling
  • Data Warehousing
  • ETL/ELT Pipelines
  • Relational Databases
  • Cloud Data Platforms
  • Technical Evaluation
  • AI Training

Why Join SME Careers?

Shape the Future of AI

Help train and improve AI systems used across industries.

Flexible Work

Choose your own schedule and work remotely.

Weekly Payments

Receive reliable weekly payments for approved work.

Community Rewards

Earn referral rewards and bonus opportunities through the platform.

Apply now

You will be redirected to the company's website to complete your application.

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Frequently asked questions

Is SME Careers legitimate?
Yes, SME Careers is a legitimate company listed on RemoWork. We verify all companies on our platform. However, we always recommend doing your own research before sharing personal information or starting work. Check reviews from other users and visit the company's official website for the most up-to-date information.
How do I get started with SME Careers?
To get started, visit SME Careers's official website and look for their careers or sign-up page. Create an account, complete your profile with relevant skills and experience, and apply for available positions or projects. Some companies may require you to pass a qualification test or assessment before you can start working.
Does SME Careers offer remote work?
Yes, SME Careers offers remote work opportunities. Most tasks and positions can be completed from anywhere with a reliable internet connection and a computer or smartphone. Specific location requirements may vary by project or role, so check individual listings for details.
How does SME Careers pay its workers?
Payment methods and schedules vary. Common payment options include PayPal, bank transfers, Payoneer, and other digital payment platforms. Visit SME Careers's official website or check their payment/FAQ section for specific details about payment methods, minimum thresholds, and payout schedules.
What skills do I need to work with SME Careers?
Required skills vary by role and project. Generally, you'll need a reliable internet connection, basic computer literacy, strong attention to detail, and good communication skills. Some positions may require specialized expertise, language proficiency, or technical qualifications. Check individual job listings for specific requirements.
What does
SME stands for "Subject Matter Expert." SME Careers connects individuals who have deep expertise in specific domains — such as medicine, law, engineering, science, or education — with AI companies that need expert knowledge to train and evaluate their AI models.
What kind of expert knowledge is most needed?
SME Careers seeks experts across many fields including healthcare, legal, STEM disciplines, finance, education, creative arts, and more. The most in-demand expertise tends to be in areas where AI models need specialized human judgment for accuracy, safety, and quality.
Are SME Careers roles suitable for part-time work?
Yes, many roles on SME Careers are designed for flexible, part-time engagement. Subject matter experts can often set their own schedules and work on projects that fit their availability, making it ideal for professionals looking for supplemental income alongside their primary career.
Apply now

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