Position: Senior Front-End Developer (React)
Company: Sphere
Category: JavaScript
Experience required: 5y
English level: upper

Location: Remotely
Type: Hire
Start Date: ASAP

**You’ll spend time on the following:**
- Own and deliver merchant facing features, from ideation to implementation to rollout. You will lead the design and implementation of front-end systems within the enterprise;
- Evangelize high quality software engineering practices;
- Identify, evaluate & define improvements to the existing infrastructure and product;
- Work directly with the product manager and other engineers to build features that improve the Merchant Self Service experience;
- Work with product to define and capture data for A/B testing, business insights, and product features;
- Understand how key technical decisions will drive business outcomes;
- Participate in on-call rotation to continue to meet our critical SLAs;
- Participate in a highly-collaborative engineering team, with a focus on increasing site performance and stability;
- You will work closely with other engineers within your group and across the product and engineering organization to identify problems and build effective technical solutions;
- Mentor junior team members and encourage your peers to do the best possible work. Be a strong advocate of best design practices.
 
**We’re excited about you if you have:**
- At least 5+ years experience in software development, experience building developer-facing tools will be a plus
- Exposure to architectural patterns of a large, high-scale web application (e.g. server-driven UI, well-designed APIs)
- Experience working in a modern frontend stack (JS, TypeScript, React, Redux)
- Excellent troubleshooting and problem-solving skills
- Ability to work collaboratively through an agile development process that promotes constant team communication
- Excellent communication skills, both written and verbal.

**Our development ecosystem:**
Languages: React / Redux/ Typescript / JS
Additional language: Java 
Node/Express JS
Splunk
REST/JSON
Deployment to our own data centers / AWS
GitHub
JIRA