5 days ago
St. Louis, MO, USA +3 moreMid Level
H1B sponsor
Base Salary
$87k - $157k/yr
Responsibilities
- Design, develop, test, and maintain backend application components using Java or Python.
- Develop and maintain RESTful services for application functionality and system integrations.
- Apply object-oriented design principles to build scalable and maintainable systems.
- Write and modify SQL queries and work with relational databases.
- Collaborate with internal and external teams to understand data sources, formats, access methods, and backend integration needs.
- Develop and troubleshoot applications in Linux-based environments.
- Implement data transformation, processing, business logic, and system workflows.
- Identify, debug, and resolve application defects and performance issues.
- Follow coding standards, participate in code reviews, and support documentation.
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.
- Active TS/SCI clearance and ability to successfully pass a polygraph.
- Professional experience developing object-oriented applications in Java or Python.
- Hands-on experience building and maintaining RESTful APIs.
- Basic to moderate SQL capability, including query writing and relational database work.
- Working knowledge of Linux-based environments.
- Ability to work independently on defined tasks within established technical frameworks.
- Preferred experience with Apache Airflow or similar workflow orchestration technologies.
- Preferred experience with Spring Boot, Django, or similar backend frameworks.
- Preferred exposure to CI/CD pipelines such as GitLab and Jenkins.
- Preferred familiarity with containerization technologies such as Docker and OpenShift.
- Preferred exposure to AWS or Azure cloud environments.
- Preferred experience working in Agile development environments.
Benefits
- Work supports a high-visibility, data-driven application used for analytics, reporting, and real-time decision-making.
- Potential work locations include Gaithersburg, Maryland; Chantilly and Alexandria, Virginia; Aurora, Colorado; St. Louis, Missouri; and Tucson, Arizona.
Categories
About Leidos
Leidos builds and operates technology and engineering solutions for defense, intelligence, civil, and health agencies, including systems integration, cyber, enterprise IT, sensors, and healthcare IT. It primarily sells through government contracts and long-term programs, plus managed services and mission software. Founded in 1969 and headquartered in Reston, Virginia, Leidos is a Fortune 500 public company on the NYSE; customers include U.S. defense and intelligence agencies and civil bodies such as the FAA.