Ui Software Developer Jobs in Washington (NOW HIRING)

Eiden Systems Corporation (ESC) is seeking a Top Secret cleared Front-End UI Engineer to join our mission-driven team onsite. In this role, you will design and develop intuitive, responsive, and high-performance user interfaces that enable mission-critical capabilities for the warfighter. You'll work closely with UX designers, back-end engineers, middleware developers, and mission stakeholders to rapidly deliver modern web applications that visualize complex data and support evolving operational requirements.

This position is ideal for a developer who enjoys building engaging user experiences, interactive geospatial applications, and data-driven interfaces while collaborating across multidisciplinary engineering teams.

Key Responsibilities

• Design, develop, and maintain modern, responsive front-end applications using JavaScript and contemporary UI frameworks.
• Build intuitive user interfaces that simplify complex mission data and workflows.
• Collaborate with UX designers and software engineers to translate user requirements into highly usable applications.
• Develop interactive dashboards, visualization tools, and geospatial mapping interfaces.
• Integrate front-end applications with RESTful APIs and real-time backend data services.
• Consume and display streaming data from middleware and messaging platforms.
• Optimize applications for performance, scalability, accessibility, and cross-browser compatibility.
• Participate in UI architecture, component library development, and reusable design patterns.
• Troubleshoot front-end issues and continuously improve application usability and performance.
• Support Agile software development, code reviews, testing, and continuous integration processes.

Required Qualifications

• Active Top Secret (TS) clearance (TS/SCI preferred).
• Bachelor's degree in Computer Science, Software Engineering, or a related technical field.
• 3+ years of professional front-end software development experience
• Strong expertise with JavaScript, TypeScript, HTML5, and CSS3.
• Experience with modern front-end frameworks such as React, Angular, or Vue.js.
• Experience developing responsive, component-based web applications.
• Experience integrating front-end applications with RESTful APIs.
• Experience developing geospatial user interfaces, interactive mapping applications, or working with GIS data formats.
• Familiarity with real-time data integration and messaging technologies such as Apache Kafka, RabbitMQ, ActiveMQ, or ZeroMQ.
• Experience consuming serialized data formats such as Protobuf.
• Proficiency using GitLab or similar version control platforms.
• Strong understanding of UI performance optimization, debugging, and modern web development best practices.

Preferred Qualifications

• Experience supporting U.S. Army, NGA, DoD, or other mission-focused programs.
• Experience building geospatial applications using CesiumJS, OpenLayers, Leaflet, Mapbox GL JS, or WebGL.
• Experience with state management libraries such as Redux, Zustand, or Pinia.
• Familiarity with real-time communication technologies including WebSockets, gRPC, MQTT, DDS, or AMQP.
• Experience with API documentation tools such as Swagger/OpenAPI.
• Knowledge of secure software development practices for classified environments.
• Experience working within Agile/Scrum software development teams.

Why ESC?

At ESC, you'll contribute to mission-critical technologies that directly support the U.S. defense and intelligence community. We foster a collaborative engineering culture where innovation, technical excellence, and rapid capability delivery are valued.

ESC offers a competitive compensation package that includes:

• Premium medical, dental, and vision insurance
• 401(k) with company match
• Life insurance
• Short- and long-term disability coverage
• Paid time off and holidays
• Professional development opportunities
• A culture that values collaboration, innovation, and work-life balance

Equal Opportunity Employer

Eiden Systems Consulting (ESC) is an Equal Opportunity Employer and is committed to creating an inclusive and respectful workplace. ESC does not discriminate against any employee or applicant based on age, color, disability, gender, national origin, race, religion, sexual orientation, veteran status, or any other status protected by applicable federal, state, or local law.

Pay Transparency Nondiscrimination Provision

In accordance with 41 CFR 60-1.35(c), ESC will not discharge or otherwise discriminate against employees or applicants for discussing, disclosing, or inquiring about their own pay or the pay of another employee or applicant. Employees who have access to compensation information as part of their essential job functions may not disclose such information to individuals who do not otherwise have access unless the disclosure is made in response to a formal complaint or investigation, in furtherance of legal proceedings, or as otherwise required by law.