Mid-Level Backend Software Engineer

Leidos offers a competitive compensation package and a comprehensive benefits program designed to support your health, financial security, and career growth. This onsite role in Gaithersburg, MD focuses on building backend services for a data-driven analytics platform in Linux environments, with opportunities to deepen expertise in scalable systems and API design.

Benefits

• Competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave
• Retirement

Why this role stands out

• High Impact: Your work supports a widely used application that enables real-time decision making
• High Visibility: Collaborate with engineering teams and mission stakeholders across programs
• Career Growth: Build deeper expertise in backend development, API design, and scalable systems
• Challenging Work: Contribute to complex backend features rather than routine maintenance

Responsibilities

• Design, implement, test, and maintain backend components using Java or Python
• Develop and maintain RESTful services to support application functionality and system integrations
• Apply object oriented design principles to build scalable and maintainable systems
• Write and modify SQL queries to support application functionality and data retrieval
• Collaborate with internal and external teams to understand data sources, formats, and access methods and support integration into backend systems
• Develop and troubleshoot applications within Linux-based environments
• Implement backend logic for data transformation, processing, and system workflows
• Identify, debug, and resolve application level defects and performance issues
• Follow coding standards, participate in code reviews, and support documentation efforts

Requirements

• Bachelor’s degree in Computer Science, Software Engineering, or a related field with 4–8 years of experience; or a Master’s degree with 2–6 years of experience
• US Citizenship
• Active TS/SCI with the ability to successfully pass a Polygraph
• Professional experience developing object oriented applications in Java or Python
• Hands-on experience building and maintaining RESTful APIs
• Experience with SQL, including writing queries and working with relational databases
• Working knowledge of Linux-based environments
• Ability to work independently on defined tasks within established technical frameworks and deliver reliable results

Technologies

• Java
• Python
• RESTful APIs
• SQL
• Linux
• Apache Airflow
• Spring Boot
• Django
• Docker
• OpenShift
• AWS
• Azure
• GitLab
• Jenkins
• Agile development environments