Senior Software Engineer

** Description*
* ** Help deliver the digital capabilities that connect the Intelligence Community with critical information, enable secure access to mission-essential services, and ensure users have reliable technology when it matters most.*
* Leidos is seeking an innovative, hands-on Senior Software Engineer to support the Chinook program supporting an Intelligence Community (IC) customer. This hybrid opportunity offers a combination of onsite collaboration and remote work, providing the flexibility to work independently while partnering closely with engineering teams and customer stakeholders to deliver impactful solutions. In this role, you'll help design, build, and enhance modern web and mobile applications that provide users with reliable access to information and services supporting national security objectives.

This is a unique opportunity to combine hands-on full-stack software engineering with Agile team leadership. You'll develop modern, responsive user experiences using Next.js, React.js, JavaScript, and CSS, build scalable backend services using Python, Django, Wagtail, and PostgreSQL, and develop mobile applications using React Native and native iOS technologies. You'll also leverage Amazon Web Services (AWS) to deliver secure, scalable, cloud-hosted solutions.

Beyond writing code, you'll help drive the team's success by facilitating Scrum ceremonies, supporting sprint execution, removing team-level impediments, and promoting continuous improvement. Working closely with developers, Product Owners, and customer stakeholders, you'll help ensure the team delivers high-quality software while maintaining a collaborative, mission-focused Agile environment.

If you're a skilled full-stack engineer who enjoys solving complex technical challenges, leading through collaboration, and seeing your code make a meaningful impact on national security missions, we want you on our team.

Position may be performed in the following locations below. Please note Gaithersburg, MD is the program's primary work location.

+ Gaithersburg, MD

+ Alexandria, VA

+ Chantilly, VA

+ Tucson, AZ

** Clearance Level

Required:

*
* Active Top Secret/SCI with the ability to successfully pass a Polygraph examination.

*
* Primary Responsibilities:

*
* ** Full-Stack Software Development*
* · Design, develop, test, and maintain scalable, secure web and mobile applications supporting mission-critical customer requirements.

· Build responsive front-end applications using Next.js, React.js, JavaScript, and CSS, and develop backend services and RESTful APIs using Python and Django.

· Develop and maintain content management solutions using Wagtail CMS and optimize PostgreSQL databases for performance and data integrity.

· Develop and support cross-platform mobile applications using React Native and native iOS applications using Swift, SwiftUI, UIKit, Xcode, and Apple iOS SDKs, ensuring seamless integration with backend services.

· Write clean, maintainable code; conduct peer reviews; troubleshoot complex issues; and implement unit, integration, and automated testing.

** AWS Cloud Development & Deployment*
* · Develop, deploy, and maintain secure, scalable applications within Amazon Web Services (AWS).

· Collaborate with Dev Sec Ops  engineers to support CI/CD pipelines, Docker deployments, cloud infrastructure, and application monitoring.

· Troubleshoot application and infrastructure issues while ensuring performance, reliability, and compliance with customer security requirements.

** Agile Delivery & Scrum Facilitation*
* · Serve as a hands-on software engineer while facilitating Scrum ceremonies, including sprint planning, daily standups, backlog refinement, sprint reviews, and retrospectives.

· Partner with Product Owners, developers, and…