Backend Engineer: High-Impact Data & API Systems

Leidos Inc; Gaithersburg (MD); On-site; USD 87,100 - 157,450; Full time

Job summary

Leidos is seeking a Backend Software Engineer in Gaithersburg, MD to design, develop, test, and maintain backend components using Java or Python. You will craft RESTful services and ensure data accuracy within Linux environments, supporting critical, mission-driven analytics across programs.

The role requires US citizenship and an active TS/SCI clearance; you will collaborate with cross-functional teams to deliver scalable systems and robust data workflows in a fast-paced, high-visibility

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
• Active TS/SCI with the ability to successfully pass a Polygraph
• Professional experience developing objectoriented 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 Linuxbased environments
• Ability to work independently on defined tasks within established technical frameworks and deliver reliable results

Responsibilities

• Design, develop, test, and maintain backend application 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

Skills

Backend development

Object-oriented programming

REST APIs

SQL

Linux

Education

Bachelor's degree in Computer Science or related field

Master's degree in Computer Science or related field

Tools

Apache Airflow

Spring Boot

Django

CI/CD (GitLab, Jenkins)

Docker

OpenShift

AWS

Azure

Job description

Leidos is seeking a Backend Software Engineer in Gaithersburg, MD to design, develop, test, and maintain backend components using Java or Python. You will craft RESTful services and ensure data accuracy within Linux environments, supporting critical, mission-driven analytics across programs.

The role requires US citizenship and an active TS/SCI clearance; you will collaborate with cross-functional teams to deliver scalable systems and robust data workflows in a fast-paced, high-visibility