Senior UI Engineer - React/Angular Frontend Expert

Robotics Technologies LLC; Seattle (WA); On-site; USD 120,000 - 190,000; Full time

Job summary

Robotics Technologies LLC is seeking a senior frontend developer to design, implement, and maintain responsive web applications. You will craft reusable UI components, integrate with REST APIs, and collaborate closely with UX/UI designers and backend teams.

The role requires deep experience with React or Angular, Redux patterns, and modern CI/CD workflows. You will guide junior developers, participate in Agile ceremonies, and help optimize performance across scalable web platforms.

Qualifications

• 12+ years of experience in UI / Frontend Development.
• Hands-on experience with React.js or Angular.
• Experience with responsive web design and CSS frameworks.
• Strong knowledge of REST APIs and JSON.
• Experience with Redux, Context API, or NgRx.

Responsibilities

• Design, develop, and maintain responsive and scalable web applications.
• Develop reusable UI components and frontend libraries.
• Collaborate with UX/UI designers, backend developers, and business teams.
• Integrate frontend applications with RESTful APIs and backend services.
• Optimize application performance, scalability, and page load times.
• Implement state management solutions such as Redux, Context API, or NgRx.
• Perform code reviews, debugging, and unit testing.
• Follow frontend development best practices and coding standards.
• Mentor junior developers and provide technical guidance.
• Participate in Agile/Scrum ceremonies and sprint planning.

Skills

React.js

Angular

REST APIs

Redux/Context API/NgRx

UI architecture

Git

Jenkins

CI/CD

Tools

Git

Jenkins

CI/CD pipelines

Job description

Robotics Technologies LLC is seeking a senior frontend developer to design, implement, and maintain responsive web applications. You will craft reusable UI components, integrate with REST APIs, and collaborate closely with UX/UI designers and backend teams.

The role requires deep experience with React or Angular, Redux patterns, and modern CI/CD workflows. You will guide junior developers, participate in Agile ceremonies, and help optimize performance across scalable web platforms.