Backend Software Engineer

If youve spent the last few years building your expertise in backend engineering Java or Python development and missiondriven systems and youre ready for work that actually moves the needle this is the kind of opportunity cleared engineers pursue when they want real impact. If you take pride in your craft write your own résumé and deliver results that senior leaders actually see youll thrive here.

Were hiring a Backend Software Engineer to support a highvisibility application relied on across the organization for data analysis reporting and operational decisionmaking. Youll design and build scalable backend services develop RESTful APIs integrate complex data sources and ensure system reliability and performance in a Linuxbased environment.

Our primary development team operates out of Gaithersburg MD but we also support onsite engineers in Alexandria VA; Chantilly VA; Aurora CO; St. Louis MO; and Tucson AZ giving top talent multiple paths to join the mission.

And while the requisition requirements may seem standard fair the position is not; as it will join a high performing team that is changing the way digital engineering and mission operations intelligence is enabled for our customer.

Why This Role Stands Out

• High Impact: Your services power a widely used application that drives realtime decisions

• High Visibility: Collaborate directly with engineering teams and mission stakeholders

• Career Growth: Deepen your expertise in backend architecture API design and scalable systems

• Challenging Work: Build and optimize complex backend features

Key Responsibilities

• Backend Development:Design develop test and maintain backend services using Java or Python

• REST API Development:Design and implement RESTful services to support application functionality and integrations

• Object-Oriented Design:Apply strong object-oriented design principles to build scalable and maintainable systems

• Database Development:Write and optimize SQL queries to support application functionality and performance

• Data Source Integration Coordination: Coordinate with external teams to understand data sources interfaces and access patterns and translate requirements into backend integrations

• System Design Contribution:Participate in technical design discussions and contribute to backend architecture decisions

• Linux Environments:Develop deploy and troubleshoot applications within Linux-based environments

• System Troubleshooting:Diagnose and resolve issues across application and database layers

• Code Quality & Best Practices:Participate in code reviews and ensure adherence to engineering standards

Basic Qualifications

• Bachelors degree in Computer Science Software Engineering or a related field with 812 years of experience; or a Masters degree with 610 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 Linuxbased environments

• Ability to work independently and drive solutions to moderately complex and complex technical challenges

Preferred Qualifications

• Experience withApache Airflow or similar workflow orchestration technologies

• Experience with geospatial data and querying (e.g. PostGIS)

• Experience withSpring Boot Django or similar backend frameworks

• Experience withCI/CD pipelines (GitLab Jenkins etc.)

• Familiarity withcontainerization (Docker OpenShift Kubernetes)

• Exposure tocloud environments (AWS or Azure)

• Experience working inAgile development environments

#MARU

If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

Original Posting:

Pay Range:

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. 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.