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Database Jobs in Ontario, CA

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Database • ontario ca

Last updated: 4 days ago

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateOntario, California, US
Remote
Full-time

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference ...Show more

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateChino, California, US
Remote
Full-time

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference ...Show more

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateMontclair, California, US
Remote
Full-time

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference ...Show more

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateChino Hills, California, US
Remote
Full-time

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference ...Show more

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateClaremont, California, US
Remote
Full-time

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference ...Show more

Import/Export Operations

Ottimo ResourcesOntario, CA, United States
Full-time

Freight Forwarding Account Manager.Leading freight forwarder in the Ontario area is seeking a freight forwarding account manager to join their growing branch! This is an excellent opportunity for s...Show more

Remote Senior SQL Engineer - AI Trainer

SuperAnnotatePomona, California, US
Remote
Full-time

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference ...Show more

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateLa Verne, California, US
Remote
Full-time

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference ...Show more

Remote Backend Engineer Talent Network - AI Trainer ($70-$150 per hour)

MercorRancho Cucamonga, California, US
Remote
Part-time

About Mercor’s talent network** Join our Backend Engineer Expert Network to connect with leading AI labs and companies seeking your expertise.This is an open application for future contract opportu...Show more

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateEastvale, California, US
Remote
Full-time

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference ...Show more

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateUpland, California, US
Remote
Full-time

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference ...Show more

Order Puller - 1st Shift

AC ProRancho Cucamonga, CA , US
Full-time

AC Pro, a family-owned business, has been providing heating and air conditioning products since 1986.Our locations in California, Nevada, Arizona, and Utah offer the best products and services in t...Show more

Database Administrator

Strategic Employment PartnersPomona, CA, US
Full-time

Our client, a Fortune 500 Company, is seeking an experience Database Administrator to join their growing team.This role will involve ensuring all databases are highly available, while enhancing cor...Show more

Project Analyst, IT

UtiliQuest, LLC.Upland, California
Full-time

Discover a more connected Project Analyst, IT career At VCI Construction, as a Project Analyst, IT, you will determine database structural requirements by analyzing operations.The ideal candidate w...Show more

ICP AGENT CLERK

VSOLVE REG LLCONTARIO, CA, US
Full-time

Below is an overview of the duties and responsibilities you would take on in this role:.Assist in problem-solving, addressing concerns of customers.Attend/participate in company meetings as a repre...Show more

Inventory Coordinator

Cosmo AppliancesChino, CA, US
Full-time

Cosmo Appliances is a rapidly growing appliance.With our products, we want to inspire people to come together and create unforgettable moments.You will have the opportunity to work as part of a tea...Show more

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateRancho Cucamonga, California, US
Remote
Full-time

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference ...Show more

Account Associate - State Farm Agent Team Member

Vanessa Vargas - State Farm AgentChino Hills, CA, US
Full-time

My team's mission is to help people manage the risks of everyday life, recover from the unexpected and realize their dreams.We are located in Chino Hills, CA and help customers with their insurance...Show more

Order Puller - 2nd Shift

AC ProRancho Cucamonga, CA , US
Full-time

AC Pro, a family-owned business, has been providing heating and air conditioning products since 1986.Our locations in California, Nevada, Arizona, and Utah offer the best products and services in t...Show more

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Remote Senior SQL Engineer - AI Trainer

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateOntario, California, US
30+ days ago
Job type
  • Full-time
  • Remote
Job description

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference solutions and explanations for complex data problems. You will assess solutions for accuracy, clarity, and adherence to the prompt; identify errors in methodology, query structure, indexing strategy, or conceptual understanding; fact-check data-related claims; write clear, step-by-step explanations and model solutions that demonstrate correct methods; and rate and compare multiple AI responses based on correctness, performance, and reasoning quality.

This is a fully remote, hourly paid contractor role with SME Careers, a fast-growing AI data services company and subsidiary of SuperAnnotate that provides AI training data to many of the world’s largest AI companies and foundation model labs. Your SQL and database engineering expertise will directly contribute to improving the world’s premier AI models used across industries.

Key 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.

Your Profile :

  • 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.
  • Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle data or query issues.