Mid-Level SQL Engineer

Leidos

$87K — $157K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in computer science, Software Engineering, or related field (4-8 years experience) or Master's with 2-6 years
  • Must be a US Citizen
  • Active TS/SCI clearance with ability to pass a Polygraph
  • Strong SQL skills, proficient in advanced queries (joins, aggregations, subqueries, window functions)
  • Experience with enterprise relational databases (PostgreSQL, MySQL, Oracle, etc.)
  • Background supporting analytics, dashboards, or reporting pipelines
  • Comfortable in Linux-based environments
  • Proven ability to work independently on data-centric tasks.

Responsibilities

  • Write complex SQL queries to support dashboards
  • Structure query outputs for optimal dashboard consumption
  • Collaborate with dashboard developers to deliver required data
  • Ensure accuracy and consistency of datasets used in dashboards
  • Identify inefficient queries and implement basic improvements
  • Translate reporting requirements into effective SQL queries.

Benefits

  • Support for onsite engineers across multiple locations
  • Join a high-performing team that is redefining digital engineering
  • Opportunities for career growth with a focus on large-scale data systems and performance optimization
  • Engage in challenging work that addresses complex data problems.
Full Job Description
We9re hiring a SQL Engineer to support a high-visibility, data-driven application that powers analytics and reporting across the organization. In this role, you9ll write complex queries, shape data for dashboards, ensure data accuracy, and deliver reliable datasets that stakeholders depend on every day. You9ll work closely with dashboard developers and application teams to provide clean, consistent, and easy-to-consume data for mission users. Our primary development team operates out of Gaithersburg, MD, but innovation doesn9t stop there. We9re able to support onsite engineers in Alexandria, VA; Chantilly, VA; Aurora, CO; St. Louis, MO; and Tucson, AZ, giving top talent multiple paths to join the mission.

And while the requisition requirements may seem standard fair, the position is not; as it will join a high performing team that is changing the way digital engineering and mission operations intelligence is enabled for our customer.

Why This Role Stands Out
  • High Impact: Your work directly supports a widely used application that drives real-time decision-making
  • High Visibility: Partner with engineering teams and key stakeholders across programs
  • Career Growth: Expand your expertise in large-scale data systems, performance optimization, and advanced SQL engineering
  • Challenging Work: Tackle complex data problems, not routine queries


Essential Responsibilities
  • SQL Development: Write complex SQL queries involving joins, aggregations, filtering, subqueries, and window functions to support dashboards
  • Data Shaping for Visualization: Structure query outputs in a way that is optimized for dashboard consumption (clear naming, grouping, formatting)
  • Dashboard Support: Partner with dashboard developers to define and deliver the data required for visualizations and reporting
  • Data Validation: Ensure accuracy, consistency, and completeness of datasets used in dashboards
  • Query Performance: Identify inefficient queries and make basic improvements to support responsive dashboards
  • Requirements Translation: Translate dashboard and reporting requirements into effective SQL queries


Basic Qualifications
  • Bachelor9s degree in computer science, Software Engineering, or related field with 4-8 years of experience; or Master9s with 2-6 years
  • US Citizenship
  • Active TS/SCI with ability to successfully pass a Polygraph
  • Strong SQL skills, including the ability to write advanced queries (joins, aggregations, subqueries, window functions)
  • Experience working with enterprise relational databases (PostgreSQL, MySQL, Oracle, etc.)
  • Background supporting analytics, dashboards, or reporting pipelines
  • Comfortable working in Linux-based environments
  • Proven ability to work independently on data-centric tasks and ensure data quality


Preferred Qualifications:
  • Experience with Grafana, Tableau, or similar visualization tools
  • Exposure to CI/CD pipelines
  • Experience working in Agile environments


#MARU

Original Posting:
April 16, 2026

Pay Range:
Pay Range $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Similar Jobs

More Jobs at Leidos

More Information Technology Jobs

Find similar Mid-Level SQL Engineer jobs: