Mid-Level SQL Engineer

Leidos; United States; On-site; USD 87,100 - 157,450; Full time

Benefits offered by this job

Health and Wellness programs

Income Protection

Paid Leave

Retirement

Job summary

Leidos is hiring a SQL Engineer to support a high-visibility data-driven application. The role involves writing complex SQL queries, shaping data for dashboards, and ensuring the accuracy of datasets.

Ideal candidates will have strong SQL skills, experience with relational databases like PostgreSQL and MySQL, and the ability to work in Linux environments. The position supports career growth in large-scale data systems.

Qualifications

• 4-8 years of experience or 2-6 years with a Master's degree.
• US Citizenship and active TS/SCI clearance.
• Experience working in Linux-based environments.

Responsibilities

• Write complex SQL queries involving joins, aggregations, filtering, and window functions.
• Structure query outputs optimized for dashboard consumption.
• Ensure accuracy and consistency of datasets used in dashboards.
• Identify inefficient queries and propose improvements.

Skills

Strong SQL skills

Data validation

Dashboard support

Experience with enterprise relational databases

Background in analytics

Education

Bachelor's degree in computer science, Software Engineering, or related field

Tools

PostgreSQL

MySQL

Oracle

Grafana

Tableau

Job description

Description

If you've been building your skills in SQL, data engineering fundamentals, and mission-driven development, and you're ready for work that actually moves the needle, this is the kind of opportunity cleared engineers pursue when they want to grow while making real impact. If you take pride in your craft, enjoy solving meaningful data problems, and want your work to support a mission with visibility at senior levels, you'll thrive here.

We're hiring a SQL Engineer to support a high-visibility, data-driven application that powers analytics and reporting across the organization. In this role, you'll write complex queries, shape data for dashboards, ensure data accuracy, and deliver reliable datasets that stakeholders depend on every day. You'll 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 doesn't stop there. We're able to support onsite engineers in Alexandria, VA; Aurora, CO; St. Louis, MO; and Tucson, AZ, giving top talent multiple paths to join the mission.

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

• Bachelor's degree in computer science, Software Engineering, or related field with 4-8 years of experience; or Master's 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

Pay Range

$87,100.00 - $157,450.00

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.