Frontend Javascript Engineer

Symphony is seeking front end engineers with expert Javascript knowledge who have experience developing rich, high-performance, browser-based Javascript applications. You'll design and implement a rich, javascript-based, 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.We are looking for a sophisticated and modern javascript UI now for a few reasons: Huge customer and test base response for more features and the implementation of clean modern designs.Each one of these features needs to integrate to be maintainable and secure.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.RESPONSIBILITIES:Provide cutting edge features (search, notifications, resilience connections, rich presence / MPOP) but with a complete focus on not only end to end encryption, but also compliance and regulatory integration. The UI is a first class citizen in our model, and our business is built on providing features and security consideration never before combined.Work with Product Designers to design and implement the next generation of Symphony’s products Build efficient and reusable front-end abstractions and systemsIdentify and address performance bottlenecks Participate in design and code reviews Interact with other team members to incorporate their innovations and vice versa Identify and communicate best practices for front-end engineering REQUIRED QUALIFICATIONS: Experience coding SPA's (single page Javascript apps)Ability to write high-performance, reusable code for UI components Aware of but not reliant on Object Oriented JavaScript Frameworks, Typescript (Prototype JS, MooTools, Dojo, etc.) Experience with backbone.js, angular.js, node.js and similar technologies desired but not required Passion for performance debugging and benchmarking BS or MS degree in Computer Science or a related technical field