Leidos invites applications for a Backend Software Engineer to design, build, and maintain scalable backend services in Java or Python, develop RESTful APIs, and integrate data sources within a Linux environment. This onsite role is based in Aurora, Colorado, with a compensation range of USD 107,900 to 195,050 per year.
Responsibilities
- Design, develop, test, and maintain backend services using Java or Python
- Design and implement RESTful services to support application functionality and integrations
- Apply solid 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, translating 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
Technologies
- Java
- Python
- Linux
- SQL
- PostGIS
- Spring Boot
- Django
- Apache Airflow
- GitLab
- Jenkins
- Docker
- OpenShift
- Kubernetes
- AWS
- Azure
Benefits
- Health and Wellness programs
- Income Protection
- Paid Leave
- Retirement
Preferred Qualifications
- Experience with Apache Airflow or similar workflow orchestration technologies
- Experience with geospatial data and querying (e.g., PostGIS)
- Experience with Spring Boot, Django, or similar backend frameworks
- Experience with CI/CD pipelines (GitLab, Jenkins, etc.)
- Familiarity with containerization (Docker, OpenShift, Kubernetes)
- Exposure to cloud environments (AWS or Azure)
- Experience working in Agile development environments
Compensation
Salary range: USD 107,900.00 – 195,050.00 per year
Location
Aurora, CO (onsite)
Security and Compliance
U.S. Citizenship is required. Active TS/SCI clearance with the ability to pass a Polygraph is necessary for this role.
Commitment to Non-Discrimination
All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, disability, medical condition, genetic information, pregnancy, family or marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law.
About Leidos
Leidos is a technology and services leader delivering digital and mission-focused solutions to government and commercial clients. Headquartered in Reston, Virginia, Leidos employs tens of thousands of professionals worldwide and pursues innovations across a broad range of sectors. For more information, visit www.Leidos.com.
