Front End Developer (React) - Cm0556

**Show the world what you can do.**

The role will be mentored by a Tech Lead and work with a larger tech team, so you won't be on an island. We thrive on a balance of collaboration and focused time which means you won't be spending all your time turning PSDs into HTML - rather you'll be part of the design and prototyping process. Critical Mass is a creative company at heart that uses technology to deliver amazing experiences to our clients and data to get better over time. We have a lot of fun and hope you'll join us.

**In this role, you will**:

- Rapid prototyping with code, using modern front-end frameworks and a digital pattern library
- Deliver solutions balancing technical and business requirements. Experience has taught you what works. Your long history in the game helps you choose the best mix of proven and cutting-edge technology.
- Interacting with project teams to understand business and user requirements
- Maintaining high coding standards and practices and exercise quality control on all aspects of web development
- Problem-solving in all areas of web development

**What are we looking for? Besides a great attitude,**

**You should have the following**:

- 3+ years demonstrated development experience with hand-coding advanced HTML, CSS, HTML5, CSS3, and JavaScript
- Experience developing with modern front-end tools and frameworks, **React**, SASS/SCSS, ES6
- Package manager and automation tool experience (Webpack)
- Demonstrated understanding of Responsive Web Design principles
- Proficiency with semantic HTML Markup
- Experience diagnosing and solving cross-browser/cross-platform issues
- Experience working with cross-functional teams

**It's a plus if you have the following**:

- Accessibility knowledge (WCAG 2.0 Level AA)
- Experience working with cross-office teams