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Leidos

Mid-Level Software Engineer

Leidos

. Design, develop, integrate, test, deploy, and maintain software applications supporting the customer’s GEOINT mission .

Posted 10/15/2026full-timeUnited StatesJuniorMid-Level💰 $87,100 - $157,450 per yearWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in software design, development, and deployment, with a strong focus on RESTful APIs, cloud environments, and secure coding practices. Proven ability to lead technical guidance, collaborate in agile environments, and ensure high-quality software solutions.

Highest-signal resume keywords
Active Top Secret/SCI ClearanceProficiency in Python, Java, JavaScript, React, Angular, Vue.jsExperience with CI/CD Tools like GitLab CI and JenkinsFamiliarity with AWS Cloud Environments and Containerization TechnologiesUnderstanding of Secure Coding Practices and Government Accreditation Processes

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
Software DevelopmentRESTful API DevelopmentDatabase Management (MySQL, PostgreSQL, SQL Server)Unit and Integration TestingAgile MethodologiesContainerization (Docker, Kubernetes)Cloud Computing (AWS, Azure)Secure Coding PracticesRoot-Cause AnalysisTechnical Documentation
Soft Skills
CollaborationProblem-SolvingTechnical GuidanceDesire to LearnCommunication
Tools & Technologies
GitJIRAConfluenceGitLab CIJenkinsSonarQubeNexusVaultKeycloakAgile Collaboration Tools
Industry Keywords
GEOINTIntelligence CommunityGeospatial DataMission-Specific WorkflowsInfrastructure-as-CodeEvent-Driven ArchitecturesApplication Performance ManagementGovernment System Accreditation (RMF, STIGs)Cloud-Native ArchitecturesObservability

Tech Stack

Tools & technologies
AngularAWSAzureCloudDjangoDockerFlaskJavaJavaScriptJenkinsjQueryKubernetesLinuxMySQLNode.jsNoSQLPostgresPythonReactSpringSpring BootSpringBootSQLSvelteVaultVue.js

About the role

Key responsibilities & impact
  • Design, develop, integrate, test, deploy, and maintain software applications supporting the customer’s GEOINT mission
  • Translate functional and technical requirements into software solutions
  • Independently implement moderately complex software features
  • Develop maintainable, scalable, and secure application components
  • Develop and consume RESTful APIs and backend services
  • Work with relational and/or NoSQL databases
  • Troubleshoot application defects, integration issues, and performance problems
  • Perform root-cause analysis and implement corrective actions
  • Develop unit, integration, and automated tests
  • Participate in code reviews and establish high-quality coding practices
  • Support CI/CD and DevSecOps processes
  • Contribute to containerized application environments
  • Participate in agile ceremonies, sprint planning, backlog refinement, demonstrations, and technical working sessions
  • Collaborate with Test Engineering to ensure features meet acceptance criteria and quality expectations
  • Support deployment, monitoring, and sustainment of the application
  • Improve application performance, reliability, maintainability, and security
  • Provide technical guidance to junior engineers
  • Maintain software and technical documentation

Requirements

What you’ll need
  • Active Top Secret/SCI clearance with the ability to successfully pass a Polygraph examination
  • US citizenship is required per contract
  • Bachelor's degree in Computer Science, Software Engineering, or related field and 4-8 years of prior relevant experience, or Master’s with less than 2-6 years of prior relevant experience; equivalent experience may be considered in lieu of degree
  • Proficiency with HTML, CSS, JSON, Ajax, REST APIs, Python, Java, JavaScript, React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, Svelte, AWS, Azure, MySQL, PostgreSQL, SQL Server, Windows, Linux, and Git
  • Understanding of modern software design patterns and coding standards
  • Experience architecting, developing, and delivering complex software systems into production
  • Experience with CI/CD tools such as GitLab CI and Jenkins, and agile collaboration tools such as JIRA and Confluence
  • Familiarity with AWS cloud environments, including C2S or GovCloud, and containerization technologies such as Docker and Kubernetes
  • Understanding of secure coding practices and government system accreditation processes such as RMF and STIGs
  • Strong desire to learn new programming languages, tools, frameworks, and techniques
  • Preferred: experience supporting Intelligence Community mission systems; geospatial, intelligence, or mission-specific data and workflows; AWS and cloud-native architectures; Infrastructure-as-Code; GitLab CI/CD, Jenkins, SonarQube, Nexus, Vault, or Keycloak; relational and search databases; event-driven architectures and messaging; observability, monitoring, logging, and application performance management