Talent.com
Senior SQL Engineer
Senior SQL EngineerSuperAnnotate • Baltimore, Maryland, US
[error_messages.no_longer_accepting]
Senior SQL Engineer

Senior SQL Engineer

SuperAnnotate • Baltimore, Maryland, US
[job_card.variable_days_ago]
[job_preview.job_type]
  • [job_card.full_time]
  • [filters.remote]
[job_card.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.
  • [job_alerts.create_a_job]

    Senior Engineer Sql • Baltimore, Maryland, US

    [internal_linking.similar_jobs]
    Cloud Engineer - Architect

    Cloud Engineer - Architect

    OmegaCor Technologies • Millersville, MD, US
    [job_card.full_time]
    At OmegaCor, our purpose is to empower our clients, staff, and community to achieve excellence.A key element of fulfilling this mission is providing high-value IT consulting services that align tec...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Database Engineer (NH-2)

    Database Engineer (NH-2)

    Legato, LLC • Annapolis Junction, MD, US
    [job_card.full_time]
    Salary : $115,000-$120,000, depending on experience.Database Engineer in Annapolis Junction, MD.Security Clearance Required : TS / SCI w / Polygraph. Salary Range : $115,000-$120,000, depending on experie...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Mid-Level Database Engineer

    Mid-Level Database Engineer

    Synergy ECP • Annapolis Junction, MD, US
    [job_card.full_time]
    Founded in 2007 and headquartered in Columbia, Maryland, Synergy ECP is a leading provider of cybersecurity, software and systems engineering and IT services to the U. The company leverages its expe...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Systems Integration Engineer

    Senior Systems Integration Engineer

    Leidos Inc • Fort Meade, MD, United States
    [job_card.full_time]
    Leidos frequently has opportunities for.Senior Systems Integration Engineer's.Intelligence Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineer...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Database Engineer

    Database Engineer

    DUIT • Fort Meade, MD, US
    [job_card.full_time]
    We are on several winning teams.Come join us! Our work environment is limitless, you matter to us, your great work will be recognized, and there are many opportunities for advancement.Davis Unlimit...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Cloud Engineer (Must be US Citizen)

    Senior Cloud Engineer (Must be US Citizen)

    North Point Technology • Fort Meade, MD, US
    [job_card.full_time]
    This job requires an active TS / SCI clearance • •.North Point Technology is looking for Senior AWS Cloud Engineers.Applicants should be self-motivated, fast-paced, curious problem solvers with a BS in...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Cloud Engineer (2025-0119)

    Cloud Engineer (2025-0119)

    Acclaim Technical Services • Annapolis Junction, MD, US
    [job_card.full_time]
    Acclaim Technical Services, founded in 2000, is a leading language, operations, and technology services company supporting a wide range of U. We are an Employee Stock Ownership Plan (ESOP) comp...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Database Engineer

    Database Engineer

    Pointer Technologies • Annapolis Junction, MD, US
    [job_card.full_time]
    Pointer Technologies is seeking a highly skilled and motivated Database Engineer to design, develop, and maintain scalable and efficient database solutions. In this role, you will be responsible for...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Sales Engineer

    Senior Sales Engineer

    Ciena • Hanover, MD, United States
    [job_card.full_time]
    As the global leader in high-speed connectivity, Ciena is committed to a people-first approach.Our teams enjoy a culture focused on prioritizing a flexible work environment that empowers individual...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Database Engineer

    Database Engineer

    Mount Indie • Linthicum, MD, US
    [job_card.full_time]
    Help Shape Data-Driven Solutions with Impact.If you're passionate about cloud technologies, open-source databases like MongoDB or MariaDB, and working in agile, mission-driven environments, thi...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Database Engineer

    Senior Database Engineer

    GliaCell Technologies • Linthicum Heights, MD, US
    [job_card.full_time]
    Are you a Senior Database Engineer who is ready for a new challenge that will launch your career to the next level?.Tired of being treated like a company drone?.Tired of promise...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Mid to Senior Level Database Engineer

    Mid to Senior Level Database Engineer

    Belay Technologies • Annapolis Junction, MD, US
    [job_card.full_time]
    Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2019, runner up in 2020 and a finalist in 2021! . Belay Technologies is seeking a Database Engineer ...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Software Engineer

    Senior Software Engineer

    Care It Services • Owings Mills, Maryland, United States
    [filters.remote]
    [job_card.full_time]
    Role : Senior software Engineer .Must have a Computer Science Degree.We're seeking a seasoned Senior Software Engineer with demonstrable expertise in Java, Angular 18, PostgreSQL, and AWS to join t...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Cloud Computing Systems Integration and Test Engineer

    Cloud Computing Systems Integration and Test Engineer

    Global Enterprise Services, LLC • Fort Meade, MD, US
    [job_card.temporary]
    The Cloud Computing Systems Integration and Test Engineer is responsible for working within a fast paced, Agile team to support testing new innovation deployments. This position will be expected to ...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Cloud Systems Engineer (Multiple Levels)

    Cloud Systems Engineer (Multiple Levels)

    8-BIT INT LLC • Fort Meade, MD, US
    [job_card.full_time]
    The Cloud Systems Engineer will be responsible for designing, implementing, and maintaining secure and scalable cloud infrastructure solutions within a highly regulated environment.This role focuse...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Data Engineer

    Senior Data Engineer

    VirtualVocations • Baltimore, Maryland, United States
    [job_card.full_time]
    A company is looking for a Senior Data Engineer, Data Warehouse.Key Responsibilities Design, build, and maintain scalable ETL / ELT pipelines for structured and unstructured data Contribute to and...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Database Engineer

    Senior Database Engineer

    ClearEdge • Annapolis Junction, MD, US
    [job_card.full_time]
    Join ClearEdge and be a part of a dynamic team that solves some of the DoD’s most complex technical challenges.Every day, ClearEdge empowers our customers in government and industry with inno...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Cloud Engineers - Evergreen

    Cloud Engineers - Evergreen

    Quotient • Annapolis Junction, MD, US
    [job_card.full_time]
    Cloud Engineers – Evergreen.Meade / Hybrid & On Site .Quotient is a leading provider of customized information technology solutions, specializing in systems integration, full-stack s...[show_more]
    [last_updated.last_updated_30] • [promoted]