cover image
SPECTRAFORCE

Frontend Developer

Hybrid

Seattle, United states

$ 66 /hour

Senior

Freelance

17-01-2026

Share this job:

Skills

Communication JavaScript TypeScript Monitoring Problem-solving Attention to detail Architecture react Agile Next.js React.js Redux Material UI HTML5 Android

Job Specifications

Title: Engineer 2

Location: Seattle WA (ONSITE: Monday through Thursday. Required)

Duration: 5 Months

Potential to convert - yes

*Coding on MacBook Device Needed*

We are seeking an experienced React UI Developer to design, build, and maintain high-quality, scalable user interfaces for modern web applications. The ideal candidate has deep expertise in React, strong UI/UX sensibilities, and a proven track record of delivering performant, maintainable front-end solutions in complex environments.

Key Responsibilities

Design and develop responsive, high-performance web applications using React.js
Build reusable components and front-end libraries for scalability and consistency
Translate UI/UX designs and business requirements into clean, efficient code
Optimize applications for maximum speed, accessibility, and cross-browser compatibility
Collaborate closely with product managers, designers, and backend engineers
Lead front-end architecture decisions and contribute to technical design discussions
Mentor junior developers and conduct code reviews to maintain high engineering standards
Ensure best practices in state management, component design, and performance optimization
Write unit and integration tests to ensure UI reliability and quality
Participate in agile ceremonies and contribute to sprint planning and estimation

Skills:

Required Qualifications

8–10 years of experience in front-end or UI development
5+ years of hands-on experience with React.js
Strong proficiency in JavaScript (ES6+), HTML5, CSS3
Experience with modern React features: Hooks, Context, functional components
Hands-on experience with state management libraries such as Redux
Strong experience with RESTful APIs and integrating front-end with backend services
Solid understanding of responsive design and cross-browser compatibility
Strong problem-solving skills and attention to detail

Preferred Qualifications

Experience with TypeScript
Familiarity with Next.js or other React frameworks
Experience with design systems and component libraries (Material UI, Ant Design, Chakra, etc.)
Knowledge of performance monitoring and optimization tools
Experience working in large-scale applications
Android Native is plus

Soft Skills

Strong communication and collaboration skills
Ability to work independently and lead UI initiatives
Passion for clean code, usability, and user experience
Comfortable working in fast-paced, agile environments

Education:

Bachelors or equivalent experience

About the Company

Welcome to SPECTRAFORCE, your gateway to NEWJOBPHORIA(tm)! Established in 2004, SPECTRAFORCE is now one of the largest and fastest growing U.S. staffing firms renowned for its exceptional client service, SPECTRAFORCE's innovative A.I.-powered talent acquisition platform and proven methodologies set us apart in the industry. We offer a comprehensive range of services including Contingent, Permanent, and Statement of Work (SOW) staffing solutions. Our expertise extends across multiple sectors such as Technology, Financial Se... Know more