As a Senior Developer, you love using your extensive experience with HTML5 and CSS3 to develop cutting-edge features on responsive websites. When it comes time to optimize reusability and performance, you understand how to take full advantage of everything HTML5 and CSS3 have to offer—including the latest in responsive grid frameworks, templating engines, and JavaScript patterns. Simply put: efficiently working across multidisciplinary teams to find solutions in all areas of web development—that’s your thing.

The Talent Team at Critical Mass is focused on ensuring we provide the best training, mentorship, and employee experience possible! CM new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 4 days a week. The ask stems from our want to:

• Strengthen opportunity for continuous learning
• Improve collaboration and team relationships
• Increase employee engagement

We understand that not everyone may feel comfortable with this expectation, so we ask that you please let us know immediately if there are any concerns so we can help navigate accordingly.

You will:

• Use modern front-end frameworks and digital pattern libraries to rapidly prototype with code.
• Deliver solutions that balance technical and business requirements by choosing the best mix of cutting-edge technology.
• Work with project teams to understand business and user requirements.
• Exercise quality control on all aspects of web development to maintain high coding standards and practices.

You have:

• 5+ years-experience in development with hand-coding advanced HTML, CSS, HTML5, CSS3, and JavaScript.
• Expertise in jQuery
• Experience developing with modern front-end tools and frameworks, e.g. Backbone.js, SASS/LESS, Node.js
• Experience working with package manager and automation tools like npm, gulp, and grunt.
• Demonstrated understanding of Responsive Web Design principles.
• Proficiency in Semantic HTML Markup.
• Accessibility knowledge (WCAG 2.0 Level AA).
• Experience diagnosing and solving cross-browser/cross-platform issues.
• Experience working with cross-functional and cross-office teams

Critical Mass is an equal opportunity employer that is committed to diversity and inclusion in the workplace. We do not tolerate discrimination on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status. If you are an individual with disabilities who would like to request an accommodation.

We are committed to fostering diversity, equity, and inclusion within our pool of candidates, with a target of achieving at least 50% representation from underrepresented communities.

The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.