At Sphere, we offer staff augmentation services, end-to-end technology solutions, and enterprise applications through onsite and remote world-class teams. Now we are looking for a Senior Front-end Engineer to join our team remotely. 

​Type: Full-time remote
Location: Remotely
Start date: ASAP

Responsibilities include but are not limited to:

• Work closely with Product to spec out the technical aspects of a feature from inception through delivery;
• Own front end feature development, ensuring tracking/analytics are instrumented and your work meets the agreed upon acceptance criteria;
• Improve existing codebases;
• Write acceptance, integration and unit tests;
• Be involved and conduct small to large scale architecture discussions when necessary;
• Help create engineering leaders by mentoring junior to mid level engineers;
• Collaborate with back-end engineers on various architecture discussions.

Requirements:

• Experience with React.js (4+);
• Experience with Redux/React Context API/Hooks;
• Experience with HTML/CSS;
• Experience working with API service-based architectures and RESTful APIs;
• Experience writing tests at various layers;
• Experience developing responsive web applications;
• Experience with building and deploying technical components of sizable complexity;
• Experience with GraphQL (preferred);
• Written and spoken English.

Note: This position requires US time zone Chicago, IL local time working hours.