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# UI Developer Senior

- **Company:** Science Applications International Corporation
- **Location:** Ashburn, VA, United States
- **Experience:** Expert
- **Salary:** $120,001 - $160,000
- **Contract:** Permanent contract
- **Skills:** HTML, Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Apache Tomcat, Software Applications, Systems Engineering, Confluence, JIRA, HTML5, Unit Testing, Unix, Cascading Style Sheets (CSS), Continuous Integration, Database Connection, Software Design Patterns, Linux, Eclipse (Software), Java Platform Enterprise Edition (J2EE), Hibernate (Java), IBM Websphere Application Server, Integrated Development Environments, Java Database Connectivity, Java Persistence API, Java Servlet, JQuery, Javaserver Pages, Microsoft Visual Studio, Model View Controller (MVC), Performance Tuning, Software Engineering, SQL Databases, Extensible Markup Language (XML), ReactJS, Spring-boot, Backend, Syntactically Awesome Style Sheets (SASS), Single Page Application, AngularJS, Integration Tests, Information Technology, Atlassian Tools, Npm(Software), Software Coding, Angular Ui, Network Server, Docker, Microservices
- **Published:** November 12, 2026
- **Apply:** https://dejobs.org/x/x/B398F5102C7645409709080B66BD3D3D/job/

## About the Role

* Bachelor's degree in computer science or related engineering field with 9+ years of technical experience
 * Recent 5 years' experience developing front end application in front end Angular (primary v10 or above)
 * Advance level experience in UI performance tuning and Component/Layout design.
 * Proven record of understanding HTML5, CSS3(flexbox, flexgrid), SASS and theme development
 * 5+ years in state management (NgRx)
 * Experience in developing reusable components and libraries (building NPM packages)
 * Excellent problem solving and critical thinking skills
 * Advance level experience with unit testing
 * Experience working with microservices design and implement design patterns
 * Hands on experience with:
 * HTML, JavaScript, CSS (required)
 * AWS (EC2, S3, etc.) (required)
 * jQuery, Angular, React
 * JEE Web Tier Technologies (JSP, Servlets, MVC Frameworks)
 * SQL (required)
 * XML
 * Unix, Linux
 * Database Connectivity (JDBC, JPA, Hibernate)
 * 5+ years of experience in Single Page Application Development using JavaScript framework (Angular 8+ or ReactJS 5+)
 * 5+ year experience in Java/JEE (required)
 * Experience working with JEE Web Tier Technologies (JSP, Servlets, MVC Frameworks)
 * Experience working with JEE Servers (like Spring boot, Tomcat, WebSphere, etc.)
 * Demonstrated expertise in software engineering practices (e.g., reading/generating software specs, design patterns, continuous integration)
 * Experience in building quick prototypes that demonstrate ideas and potential in a hands-on environment.
 * Experience designing and delivering complex, highly scalable software components.
 * Experience working with users to define requirements and demonstrate solutions.

Desired Skills and Experience

 * Experience developing 100% automation unit tests using eclipse is a strong plus
 * Experience deploying and managing applications in a Docker environment a plus
 * Agile development experience is a plus.
 * First-hand experience working with large project teams (working with the Federal Government is a strong plus)
 * Master's degree in computer science or related field is a plus

Customer Requirements

 * Clearance - Ability to obtain and hold a public trust position and favorable suitability based on a CBP Background Investigation
 * Citizenship - Must be a US Citizen
 * Location - Hybrid with on-site (Ashburn, VA) visits 2 days per week and if a mission need. All candidates must be within the GWA/commutable area

## Description

SAIC is seeking a UI Front End Developer (Senior) with React and Angular UI development experience to join our team. This position will work closely with the Lead Architect and other developers participating in the system architecture design, systems engineering, development, integration testing and validation, and all aspects of the software life-cycle (requirements to design to implementation to test) for a browser based application implemented using Angular interfacing with backend microservice APIs. The candidate will be responsible for developing code as dictated by project requirement., * Design, develop, unit test UI interfaces written in Angular and/or React

 * Use Integrated Development Environment Tools such as Visual Studio Code
 * Design and implement JEE software applications.
 * Use modern software engineering tools and methodologies, including Eclipse, and Atlassian Products (Jira, Confluence)
 * Work with users in an Agile development approach to understand requirements, then elicit feedback and refine solutions through demonstrations
 * Present the solution at formal and informal design reviews, and document the design according to the Government's system lifecycle methodology