{linebreak}AgilityFeat is seeking a Senior or a Lead Front end Engineer with expert Javascript knowledge who has experience developing rich, high­-performance, browser-­based Javascript applications. You'll design and implement a rich React JS, enterprise-­class messaging application, including client­-based end to end encryption and related security in the browser. We use backbone.js extensively and chrome wrapper / webkit for native integration. The ideal candidate has Team Lead or even Engineering management experience. {linebreak} {linebreak} A sophisticated and modern javascript UI is our #1 need for a few reasons:{linebreak}{linebreak}{linebreak}* We have a huge customer and test base response for more features and the implementation of clean modern designs{linebreak}{linebreak}* Each one of these features needs to integrate to be maintainable and secure{linebreak}{linebreak}* We have a great server side team, but our frontend developers are shaping the look and feel of our core product and we need more help now.{linebreak}{linebreak}{linebreak}{linebreak}{linebreak}RESPONSIBILITIES{linebreak} You'll focus on cutting edge features (search, notifications, resilience connections). The UI is a first class citizen in our model, and our business is built on providing features and security consideration never before combined.{linebreak}{linebreak}{linebreak}* Work with Product Designers to design and implement the next generation of products{linebreak}{linebreak}* Build efficient and reusable front­end abstractions and systems{linebreak}{linebreak}* Identify and address performance bottlenecks{linebreak}{linebreak}* Participate in design and code reviews{linebreak}{linebreak}* Interact with other team members to incorporate their innovations and vice versa{linebreak}{linebreak}* Identify and communicate best practices for front­end engineering{linebreak}{linebreak}{linebreak}