Mid-Level Backend Software Engineer
About the role
This role supports a high-visibility, data-driven application used across the organization for analytics and reporting. The Backend Software Engineer will help build and maintain core backend services, develop RESTful APIs, support data-driven functionality, and contribute to ongoing system enhancements within a Linux-based environment.
Responsibilities
- Backend Development: Design, develop, test, and maintain backend application components using Java or Python
- REST API Development: Develop and maintain RESTful services to support application functionality and system integrations
- Object-Oriented Programming: Apply object-oriented design principles to build scalable and maintainable systems
- Database Development: Write and modify SQL queries to support application functionality and data retrieval
- Data Source Collaboration: Collaborate with internal and external teams to understand data sources, formats, and access methods, and support integration into backend systems
- Linux Environments: Develop and troubleshoot applications within Linux-based environments
- Data Processing & Business Logic: Implement backend logic for data transformation, processing, and system workflows
- Bug Fixing & Enhancements: Identify, debug, and resolve application-level defects and performance issues
- Code Quality: Follow coding standards, participate in code reviews, and support documentation efforts
Qualifications
- 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 with Active TS/SCI clearance and ability to pass a Polygraph
- Professional experience developing object-oriented applications in Java or Python
- Hands-on experience building and maintaining RESTful APIs
- Basic to moderate experience with SQL capability, 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
Preferred Qualifications
- Experience with Apache Airflow or similar workflow orchestration technologies
- Experience with Spring Boot, Django, or similar backend frameworks
- Exposure to CI/CD pipelines (GitLab, Jenkins, etc.)
- Familiarity with containerization (Docker, OpenShift)
- Exposure to cloud environments (AWS or Azure)
- Experience working in Agile development environments
Pay and Benefits
The pay range for this role is $87,100.00 - $157,450.00. 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.
About Leidos
Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.
Securing Your Data
Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work).
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.