> Markdown version of [/jobs/ext/2065050-python-software-engineer](https://www.wearedevelopers.com/jobs/ext/2065050-python-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Python Software Engineer - **Company:** Leidos, Inc. - **Location:** Gaithersburg, MD, United States - **Experience:** Experienced - **Salary:** $87,100.0 - $157,450.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), PHP (Programming Language), XML Schema, Web Accessibility, Agile Methodology, Artificial Intelligence, Amazon Web Services, Application Integration Architecture, Business Logic, Confluence, JIRA, HTML5, Automation of Tests, Bash Shell, Unix, Cascading Style Sheets (CSS), Databases, Continuous Integration, Corona (Software Development Kit), Data Transformation, Relational Databases, Linux, DevOps, Programming Tools, Web Development, Drupal, Middleware, Design of User Interfaces, JSON, Python (Programming Language), PostgreSQL, Linux System Administration, MySQL, Object-Oriented Software Development, Oracle (Applications), Software Maintenance, Ansible, Fiona, Selenium, Software Deployment, Software Engineering, SonarQube, PL-SQL, Software Testing Automation Framework, TypeScript, Web Content Accessibility Guidelines, Extensible Markup Language (XML), Extensible Stylesheet Language Transformations (XSLT), Scripting, Sql Optimization, Delivery Pipeline, Large Language Models, Prompt Engineering, Generative AI, Git, Fastapi, Pytest, Information Technology, Playwright, Atlassian Tools, Bitbucket, Data Management, Front End Software Development, Asynchronous Programming, Restful APIs, Terraform, Doctrine (orm), Atlassian Bamboo, Docker, Jenkins - **Published:** August 15, 2026 - **Apply:** https://www.dice.com/job-detail/7897c009-2d33-47ab-a77d-f248d793e4ab ## About the Role * Bachelor's degree in computer science, software engineering, mathematics, engineering, or related technical discipline. Master's or Doctorate degree may substitute for required experience. * 5+ years of combined experience with modern software development (Python, Java, PHP) * 2+ years of combined experience with web development and building responsive UIs with modern front-end technologies * Experience with Artificial Intelligence and AI-Assisted Development (Generative AI, LLMs, AI coding assistants, RAG, AI agents, prompt engineering, and AI MCP servers) * Experience working in Agile software development environments. * This program requires a Public Trust security clearance, in order to obtain/maintain a Public Trust, candidates must hold ship or Permanent Residency Required Skills: * 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. * 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. * Experience with 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. Desired Skills: * 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. * 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. If you\'re looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We\'re not hiring followers. We\'re recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We\'re already at step 30 - and moving faster than anyone else dares. ## Description Leidos is seeking a mid-level Python Software Engineer, who will be a member of a dynamic team in Gaithersburg, MD, working on the development/maintenance of software that improves aircraft runway and terminal congestion. Nationwide congestion is increasing, and the need for efficient aircraft traffic planning is critical. The Federal Aviation Administration (FAA) Terminal Flight Data Manager (TFDM) is the surface management solution that will provide NextGen Air Traffic Control capabilities to improve air traffic operations in the National Airspace System (NAS). The Terminal Flight Data Management (TFDM) program is a Federal Aviation Administration's (FAA) NextGen program based on airport surface management that provides efficiency for both the airport surface and terminal airspace by providing a new and comprehensive integrated surface traffic control and management system. We are a team of forward-looking professionals in need of a strong candidate with these key required skills: Modern Development (Python, Java, PHP), Structured Data (XML, XSD, XSLT, JSON, CSV), Agile / Scrum development, AI-Assisted Development, relational databases (PostgreSQL, MySQL, Oracle). *This position requires onsite support in Gaithersburg, MD 3 days a week* 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 * Willingness to travel to customer sites ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Fireside Chat with Lea](https://www.wearedevelopers.com/videos/551-fireside-chat-with-lea) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [The Evolving Landscape of Application Development: Insights from Three Years of Research](https://www.wearedevelopers.com/videos/1459-the-evolving-landscape-of-application-development-insights-from-three-years-of-research) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [The 13 Best Python Libraries for Developers in 2025](https://www.wearedevelopers.com/magazine/371-the-13-best-python-libraries-for-developers-in-2025) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)