Leidos

Backend Software Engineer

Leidos

full-time

Posted on:

Location Type: Office

Location: GaithersburgArizonaColoradoUnited States

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Salary

💰 $107,900 - $195,050 per year

Job Level

About the role

  • Design, develop, test, and maintain backend services using Java or Python
  • Design and implement RESTful services to support application functionality and integrations
  • Apply strong object-oriented design principles to build scalable and maintainable systems
  • Write and optimize SQL queries to support application functionality and performance
  • Coordinate with external teams to understand data sources, interfaces, and access patterns, and translate requirements into backend integrations
  • Participate in technical design discussions and contribute to backend architecture decisions
  • Develop, deploy, and troubleshoot applications within Linux-based environments
  • Diagnose and resolve issues across application and database layers
  • Participate in code reviews and ensure adherence to engineering standards

Requirements

  • Bachelor’s degree in Computer Science, Software Engineering, or a related field with 8–12 years of experience; or a Master’s degree with 6–10 years of experience
  • U.S. Citizenship
  • Active TS/SCI clearance with the ability to successfully pass a Polygraph
  • Strong professional experience developing backend applications in Java or Python
  • Proven ability to design and develop RESTful APIs that support scalable application functionality
  • Solid SQL experience, including writing and optimizing queries across relational databases
  • Confident working in Linux‑based environments
  • Ability to work independently and drive solutions to moderately complex and complex technical challenges.
Benefits
  • competitive compensation
  • Health and Wellness programs
  • Income Protection
  • Paid Leave
  • Retirement
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
JavaPythonRESTful servicesSQLobject-oriented designbackend developmentLinuxapplication troubleshootingdatabase optimizationAPI design
Soft Skills
independent workproblem-solvingtechnical discussionscollaborationcommunication
Certifications
Bachelor’s degreeMaster’s degreeTS/SCI clearance