User Interface (UI) Developer job opportunity at Leidos.

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DatePosted 20 Days Ago bot
Leidos User Interface (UI) Developer
Experience: 12-years
Pattern: full-time
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loacation Ashburn, VA, United States Of America
loacation Ashburn, VA....United States Of America

The Homeland Sector within Leidos is seeking a User Interface (UI)  Developer with strong systems, software,  and Agile experience to support a complex program to provide Agile development for critical systems on a mission-critical program supporting the Passenger Systems Program Directorate (PSPD) within Customs and Border Protection (CBP). PSPD supports the Department of Homeland Security (DHS) and CBP critical missions, specifically screening and processing travelers at the ports of entry (POEs) into the United States. In this hands-on position, you will work collaboratively to architect, design, build, deliver, and enhance the user interfaces for highly available, scalable, real-time systems. You will exercise your judgment in determining and recommending the best designs based on customer business objectives, timelines, and other resource constraints. You will participate in and/or direct major deliverable of projects through all aspects of the software development life cycle including scope and work estimation, architecture and design, coding, and unit testing. We're looking for a highly skilled and experienced Senior Angular UI Developer to lead the greenfield development of a critical user interface application. This role demands a visionary who can build a robust, scalable, and testable UI from the ground up, ensuring it adheres to the highest standards of best practices. You'll be instrumental in shaping the future of our front-end architecture, working closely with backend Java teams, and ensuring seamless deployment within a Kubernetes environment. **This position REQUIRES the candidate to be in Ashburn, VA, twice a week** Responsibilities: Lead the design, development, and implementation of a new, complex Angular UI application from inception to deployment. Define and enforce UI development best practices, coding standards, and architectural guidelines. Collaborate closely with Java backend developers to understand API requirements and ensure seamless integration. Drive thorough unit, integration, and end-to-end testing strategies for the UI application. Architect and implement scalable and maintainable front-end solutions, considering future growth and evolving business needs. Mentor junior developers and foster a culture of technical excellence within the UI team. Ensure the UI application is optimized for performance, responsiveness, and user experience. Work within an Agile Scrum methodology and contribute to a SecDevOps culture. Oversee the deployment of the UI application into Kubernetes (K8s) environments. Basic Qualifications: BS/BA degree and 12 years of related experience or Master’s with 10 years of related experience; OR 4 years of related experience in lieu of degree Must be able to maintain and obtain a CBP Background Investigation prior to start Must be a US citizen 7+ years of experience in front-end development, with at least 5 years focused on modern JavaScript frameworks Experience with Agile Scrum methodology and working in a SecDevOps environment Experience working with containerized applications (Docker, Kubernetes) Proven experience leading UI projects and building applications from the ground up. 3+ years’ experience developing cloud ready applications 4 years of hands-on experience with Angular (version 2+), demonstrating a deep understanding of its core principles, component-based architecture, routing, services, and state management. Experience with front-end build tools and package managers (e.g., Webpack, Babel, NPM, Node.js). Proficient in HTML5, CSS3, and JavaScript (ES6+), including DOM manipulation and the JavaScript object model. Demonstrated experience working with RESTful APIs and Microservices, including expertise with HTTP request libraries like Axios. Familiarity with the Java backend ecosystem and common patterns for UI/backend integration Solid understanding of modern authorization mechanisms, such as JSON Web Token (JWT) Preferred Qualifications: Hands on working experience with NgRx for complex state management. Hands on experience with more current specifications of EcmaScript (ES6) Experience with common front-end development tools such as Babel, Webpack, NPM, Node etc. Experience with UI testing frameworks (e.g., Jasmine, Karma, Jest, Cypress). A strong portfolio or examples of previous Angular applications developed from scratch. Experience with UI/UX design principles and best practices. Demonstrated ability to benchmark and optimize UI application performance. Familiarity with CI/CD pipelines for front-end applications. Familiarity with real-time UI monitoring tools. Active Full CBP BI Experience with Google Cloud 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. Original Posting: February 10, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $131,300.00 - $237,350.00 The Leidos pay range for this job level is a general guideline only and 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.

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