As a contract Frontend Developer, you’ll leverage your experience in HTML5, CSS3, Vanilla JavaScript, and React to develop innovative features for responsive websites. You’ll receive mentorship from a Tech Lead and collaborate with departments like Creative and UX to create top-notch user experiences. Your proficiency in responsive HTML and CSS will be complemented by your knowledge of modern front-end frameworks, responsive grid frameworks, and templating engines.

You Will:

• Rapidly prototype with code using modern front-end frameworks and digital pattern libraries.
• Deliver solutions that balance technical and business requirements.
• Understand business and user requirements to inform development.
• Maintain high coding standards to ensure quality control in web development.
• Problem-solve across various areas of web development.

You Have:

• A minimum of 4 years of demonstrated development experience, with a strong background in hand-coding advanced HTML, CSS, and JavaScript.
• Must have experience in developing applications with React and familiarity with GraphQL.
• Proven experience with API integration and data management, particularly in supporting owner’s portals.
• Proficiency in JavaScript (ES5 and ES6) along with knowledge of jQuery.
• Familiarity with web performance optimization is a plus.
• Experience with package managers and automation tools (e.g., npm, gulp, grunt).
• Strong understanding of Responsive Web Design principles and proficiency with Semantic HTML markup.
• Attention to detail and the ability to manage complex sites.
• Quick learner and self-starter with strong problem-solving skills.
• Good communication skills, particularly in cross-timezone projects with teams.
• Experience with web development and GraphQL is a plus.

What We Offer

• Global maternity and parental leave
• Competitive benefits packages
• Vacation, compassionate leave, wellness days, and flex days
• Access to online services for families and new parents
• Extensive winter holiday office closures
• Summer Fridays (off at 3:00 PM local time every Friday)
• Diversity and Inclusion Board with 15 affinity groups
• Enterprise-wide employee discounts

Our 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.

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, please reach out to accommodations@criticalmass.com.

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 criticalmass.com and us.greenhouse-mail.io. 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.

If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoidIf Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.htmlIf U.K. based: https://www.gov.uk/consumer-protection-rightsIf Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx