User Interface (UI) Developer

Valiant Technologies LLC; Ashburn (VA); On-site; USD 150,000 - 210,000; Full time

Job summary

Valiant Technologies LLC in Ashburn, Virginia seeks an experienced Senior Angular UI Engineer to lead a new complex UI application from inception to deployment. You will define UI standards, collaborate with Java backend teams, and drive robust testing and scalable front-end architecture.

You will mentor junior developers, optimize performance and user experience, and contribute to SecDevOps and Kubernetes deployment practices within an Agile Scrum environment.

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
• Experience with Agile Scrum methodology and SecDevOps environment
• Experience with containerized applications (Docker, Kubernetes)
• Proven experience leading UI projects and building applications from scratch
• 4 years of hands-on Angular (version 2+)

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 with Java backend developers to understand API requirements and integration.
• Drive unit, integration, and end-to-end testing strategies for the UI.
• Architect and implement scalable front-end solutions for future growth.
• Mentor junior developers and foster technical excellence within the UI team.
• Ensure UI performance, responsiveness, and user experience are optimized.
• Work within an Agile Scrum methodology and contribute to SecDevOps culture.
• Oversee deployment of the UI application into Kubernetes environments.

Skills

Angular 2+

Agile Scrum

RESTful APIs

JWT security

UI performance

Mentoring

Education

BS/BA or MS in CS/Engineering

Tools

Docker

Kubernetes

Webpack

Babel

NPM

Node.js

Job description

• 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.

Required Skills and Experience:

• 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
• 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.
• 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).
• 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 Skills (Not essential but beneficial to have):

• 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.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.