Mid-Level Backend Software Engineer

Join Leidos in Gaithersburg, MD for a mid-level backend software engineer role onsite. You will design, develop, test, and maintain backend components and RESTful APIs for a data-driven analytics application operating in Linux environments.

Salary range: USD 87,100 - 157,450 per year.

This position offers competitive compensation along with a benefits package that includes health and wellness programs, income protection, paid leave, and retirement options.

Why this role stands out

• High impact work supporting a widely used analytics application that informs real-time decision making
• Strong visibility across engineering teams and mission stakeholders across programs
• Opportunities to deepen expertise in backend development, API design, and scalable systems
• Challenging backend features that go beyond routine maintenance

Responsibilities

• Build and maintain server-side components and services using Java or Python
• Create and sustain RESTful APIs to enable application features and integrations
• Apply object-oriented design principles to craft scalable, maintainable systems
• Write SQL queries to support data access and application functionality
• Collaborate with internal and external teams to understand data sources, formats, and access methods, supporting backend integration
• Develop and troubleshoot software in Linux-based environments
• Implement backend logic for data transformation, processing, and workflow management
• Identify and resolve defects and performance issues; implement enhancements as needed
• Adhere to coding standards, participate in code reviews, and contribute to 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
• U.S. citizenship is required
• Active TS/SCI clearance with the ability to pass a polygraph
• Hands-on experience developing object-oriented applications in Java or Python
• Experience building and maintaining RESTful APIs
• Working knowledge of SQL, including writing queries and working with relational databases
• Familiarity with 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

Benefits

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