Junior Software Engineer

Summary

Leidos is a technology and engineering company serving government and commercial customers with digital and mission innovations. The company is seeking a Junior Software Engineer to develop and maintain software for the FAA Terminal Flight Data Manager program, improving aircraft runway and terminal congestion. The role involves application development, integration, defect resolution, AI-assisted development, DevOps, structured data management, and technical communication.

Responsibilities

• Architect, design, develop, and implement next-generation application using software engineering best practices in the latest technologies: + Infrastructure-as-Code and Configuration-as-Code (Terraform, Ansible) + Artificial Intelligence and AI-Assisted Development (Generative AI, LLMs, AI coding assistants, RAG, AI agents, prompt engineering, and AI MCP servers) + DevOps and CI/CD tooling (Bamboo, Docker, SonarQube, Ansible)
• Provide software expertise in one or more of these areas: application integration, RESTful services, Artificial Intelligence, security, workflow automation, module integration, user experience (UX), and accessibility compliance (Section 508/WCAG/USDS standards)
• Investigate and repair application defects regardless of component: automation, front-end, business logic, middleware, or database (PL/SQL and Data Modeling)
• Brief management, customer, team, or vendors using written or oral skills at appropriate technical level for audience
• All other duties as assigned or directed

Skills

• Modern Development (Python, Java, C++, PHP), Structured Data (XML, XSD, XSLT, JSON, CSV), Agile / Scrum development, AI-Assisted Development, relational databases (PostgreSQL, MySQL, Oracle)
• This position can be remote, however preference will be given to those who are local to and can work 3 days a week in one of the following locations: Gaithersburg, MD; Atlantic City, NJ; or Eagan, MN
• Bachelor's degree in computer science, software engineering, mathematics, engineering, or related technical discipline. Master's or Doctorate degree may substitute for required experience
• 3+ years of combined experience with modern software development (Python, Java, PHP)
• Experience working in Agile software development environments
• Willingness to travel at least 50% as needed
• This program requires a Public Trust security clearance, in order to obtain/maintain a Public Trust, candidates must hold US citizenship or Permanent Residency
• Solid understanding of modern Python libraries and frameworks, including GeoPandas, Fiona, Pillow, PyTesseract, and XMLDiff, with experience developing geospatial, document-processing, and data transformation applications
• Experience developing modern Python applications using object-oriented design principles, type annotations, asynchronous programming, automated testing frameworks, and secure software development best practices
• Proven experience designing, developing, and maintaining software applications used to create, validate, transform, and manage structured data formats including JSON, CSV, XML, XSD, and XSLT
• Demonstrated knowledge of XML schema design (XSD), XSLT transformations, and structured data validation techniques
• Experience with automated testing methodologies including unit, integration, end-to-end, and behavior-driven testing using tools such as pytest, Behave, Selenium, Playwright, and test automation frameworks
• Solid knowledge of front-end technologies including HTML5, JavaScript/TypeScript, CSS3, and responsive UI development principles
• Strong experience in automating tasks with scripting languages like Bash, Shell, or Python
• Experience in use of the UNIX and Linux operating systems and automating tasks with scripting languages like Bash, Shell
• Experience using DevOps and CI/CD tools including Git/Bitbucket, Bamboo/Jenkins, SonarQube, and automated build/deployment pipelines
• Experience with Artificial Intelligence and AI-Assisted Development (Generative AI, LLMs, AI coding assistants, RAG, AI agents, prompt engineering, and AI MCP servers)
• Strong experience with Ansible Automation and authoring playbooks and roles for installing, maintaining, or upgrading platforms
• Experience building, packaging, and deploying software applications in Linux environments using RPM-based distribution mechanisms
• Experience deploying or supporting applications in AWS cloud environments, related certifications
• Experience with PHP software development and Drupal
• Experience using Atlassian collaboration and development tools including Jira, Confluence, Bitbucket, and Bamboo
• Experience with relational databases including PostgreSQL, MySQL , and Oracle including SQL optimization and ORM technologies such as Doctrine or Eloquent
• Experience with FAA and air traffic domain knowledge
• Willingness to travel to customer sites

Qualifications

Must Haves

• Modern Development (Python, Java, C++, PHP), Structured Data (XML, XSD, XSLT, JSON, CSV), Agile / Scrum development, AI-Assisted Development, relational databases (PostgreSQL, MySQL, Oracle)
• This position can be remote, however preference will be given to those who are local to and can work 3 days a week in one of the following locations: Gaithersburg, MD; Atlantic City, NJ; or Eagan, MN
• Bachelor's degree in computer science, software engineering, mathematics, engineering, or related technical discipline. Master's or Doctorate degree may substitute for required experience
• 3+ years of combined experience with modern software development (Python, Java, PHP)
• Experience working in Agile software development environments
• Willingness to travel at least 50% as needed
• This program requires a Public Trust security clearance, in order to obtain/maintain a Public Trust, candidates must hold US citizenship or Permanent Residency
• Solid understanding of modern Python libraries and frameworks, including GeoPandas, Fiona, Pillow, PyTesseract, and XMLDiff, with experience developing geospatial, document-processing, and data transformation applications
• Experience developing modern Python applications using object-oriented design principles, type annotations, asynchronous programming, automated testing frameworks, and secure software development best practices
• Proven experience designing, developing, and maintaining software applications used to create, validate, transform, and manage structured data formats including JSON, CSV, XML, XSD, and XSLT
• Demonstrated knowledge of XML schema design (XSD), XSLT transformations, and structured data validation techniques
• Experience with automated testing methodologies including unit, integration, end-to-end, and behavior-driven testing using tools such as pytest, Behave, Selenium, Playwright, and test automation frameworks
• Solid knowledge of front-end technologies including HTML5, JavaScript/TypeScript, CSS3, and responsive UI development principles
• Strong experience in automating tasks with scripting languages like Bash, Shell, or Python
• Experience in use of the UNIX and Linux operating systems and automating tasks with scripting languages like Bash, Shell
• Experience using DevOps and CI/CD tools including Git/Bitbucket, Bamboo/Jenkins, SonarQube, and automated build/deployment pipelines
• Experience with Artificial Intelligence and AI-Assisted Development (Generative AI, LLMs, AI coding assistants, RAG, AI agents, prompt engineering, and AI MCP servers)

Nice to Haves

• Strong experience with Ansible Automation and authoring playbooks and roles for installing, maintaining, or upgrading platforms
• Experience building, packaging, and deploying software applications in Linux environments using RPM-based distribution mechanisms
• Experience deploying or supporting applications in AWS cloud environments, related certifications
• Experience with PHP software development and Drupal
• Experience using Atlassian collaboration and development tools including Jira, Confluence, Bitbucket, and Bamboo
• Experience with relational databases including PostgreSQL, MySQL , and Oracle including SQL optimization and ORM technologies such as Doctrine or Eloquent
• Experience with FAA and air traffic domain knowledge
• Willingness to travel to customer sites

Benefits

• Health and Wellness programs
• Income Protection
• Paid Leave
• Retirement
• This position can be remote