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Senior Frontend Developer - Angular / React / JavaScript / TypeScript

Remotely, Anywhere

Location: Remote (Working Hours: CST Time Zone)
Type: Long-term Contract
Start Date: ASAP
Client Domain: Smart Devices 

Sphere is looking for  Senior Frontend Developer to join a forward-thinking client developing smart device solutions. 

 Candidates must be available to collaborate during CST working hours.


Responsibilities

  • Develop application using Angular (must-have) and React

  • Write scalable, well-tested TypeScript and JavaScript code

  • Implement responsive design, smooth UI interactions, and dynamic components

  • Collaborate closely with cross-functional teams to translate product vision into high-quality software

  • Work with backend teams to integrate APIs and ensure seamless user experiences

  • Maintain design consistency by contributing to shared UI libraries and component systems

  • Review code, mentor teammates, and champion frontend best practices


Requirements

  • 5+ years of experience in frontend development with a strong focus on Angular

  • Experience with React and an understanding of component-based architecture

  • Experience with TypeScript, JavaScript (ES6+), HTML5, and CSS3

  • Experience building responsive, mobile-friendly user interfaces

  • Strong API integration experience (RESTful services)

  • Familiar with Git workflows, Agile methodologies, and modern frontend tooling (Webpack, ESLint, etc.)

  • Comfortable working remotely and aligned with CST time zone


Nice to Have

  • Background working with IoT, smart devices, or connected hardware platforms

  • Experience with Mendix/OutSystems

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