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Senior Web Application Developer React -JS -ES6

Harvey Nash plc
Harvey Nash
Date Posted
1st November 2016
London, City of London
£70,000 to £90,000 Per Annum
Contract Type
Full Time
Senior Web Application Developer React -JS -ES6

My clients aim is to disrupt the courier/logistics/delivery space with innovative, next generation software. Backed by one of the world's largest same day courier companies, they are building a SaaS platform that they believe can genuinely change the way this growing industry works.

They are building a team to help them bring this vision to life. Using the latest technologies, working methods and putting creativity and ambition at the forefront of everything they do, they need highly motivated people with great attitude and aptitude to join us and have tasked us with finding them!!!

They are looking for a Senior Web Application developer who is motivated to combine the art of design with the art of programming. Responsibilities will include the translation of the UX wireframes and UI designs to actual code that will produce visual elements of the application. You will work with the product designer and bridge the gap between graphical design and technical implementation, taking an active role on both sides and defining how the application looks as well as how it works.

You can expect to work with some seriously bright people on challenging and interesting projects from day one. You can expect to be exposed to new and emerging technologies, to be given responsibility and to have your opinions listened to.

This role based in London EC2 will offer a generous salary and benefits, flexible working and the opportunity to be one of the first employees of something very special.


* Develop new user-facing features

* Build reusable code and libraries for future use

* Ensure the technical feasibility of UI designs

* Optimize application for maximum speed and scalability

* Assure that the design works in a coherent manner on multiple device types.

* Collaborate with other team members and stakeholders

* Ensuring that accessibility is achieved across all devices

* Contribute to overall Architecture decisions representing best

* React are your primary tools

* Excellent understanding of JavaScript, ES6 and future

* Node.js/Express/Koa experience highly beneficial

* Understanding of REST, HTTP and caching

* Good understanding of HTML5 and CSS3

* Good understanding of responsive and adaptive design

* Strong understanding of server-side CSS pre-processing platforms, such as LESS, PostCSS, SASS

* Build unit tests and understand the CI/CD pipeline flow

* Understand cross-browser compatibility issues and ways to work around them

* Understand the importance of page performance and weight

* Good grasp of why adhering to best design practices pays off

* Good understanding of SEO principles and ensuring that the application will adhere to them

* Proficient understanding of code versioning tools such as Git

* Agile/Scrum project methodologies

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