React UI Engineer: Micro-Frontends & Prototyping Lead

Mobomo, LLC; Washington (District of Columbia); On-site; USD 110,000 - 170,000; Full time

Benefits offered by this job

Health care

Paid time off

Retirement savings

Professional development

Job summary

Mobomo, LLC is seeking a frontend engineer who bridges complex user flows with high-performance micro-frontend (MFE) architecture. You will own the front-end lifecycle from prototype to deployment, taking initiative in shifting environments and coordinating with stakeholders.

Responsibilities include designing and prototyping UI, implementing React components, and managing state with Redux or Context API. You’ll optimize performance, write tests, and help build a unified design system across

Qualifications

• Extensive React frontend development experience
• Strong understanding of user-centered design and responsive UI
• Experience with micro-frontend architectures (single-spa)
• Ability to deploy features independently via CI/CD pipelines
• Proficiency in state management (Redux/Context API) and modern tooling
• Familiarity with automated testing (Jest, RTL)
• US citizen and able to obtain US Government Public Trust clearance

Responsibilities

• Design user flows, wireframes, and high-fidelity prototypes with stakeholders
• Develop reusable UI components and libraries in React.js
• Ensure responsive design across devices
• Oversee complex data flows with modern state management
• Monitor performance, debug issues, and maintain tests (Jest, RTL)
• Lead shared design system development for consistent visuals

Skills

React

JSX & hooks

State management

MFE architecture

Single-spa

Performance optimization

Testing

CI/CD

Design systems

Tools

Redux

Context API

Jest

React Testing Library

GitHub Actions

AWS (S3/CloudFront)

CodePipeline

Job description

Mobomo, LLC is seeking a frontend engineer who bridges complex user flows with high-performance micro-frontend (MFE) architecture. You will own the front-end lifecycle from prototype to deployment, taking initiative in shifting environments and coordinating with stakeholders.

Responsibilities include designing and prototyping UI, implementing React components, and managing state with Redux or Context API. You’ll optimize performance, write tests, and help build a unified design system across