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Critical Mass

Senior Developer, Front End

Critical Mass, San Jose, CA


The Critical Mass technology team is looking for an inspired, motivated, and experienced web developer to join our team. We are an experience design agency with a focus on the customer, which means that multi-discipline collaboration and prototyping are at the heart of our process. This role will join a talented team working on BMWUSA.com. We're using the latest technologies including ES6, pub/sub architecture, and a clean component-based approach to deliver reusable, innovative, and responsive experiences. Web performance & accessibility are also key concerns because of their respective importance to user experience and perception of a premium experience.

Our team culture thrives on a balance of collaboration and focused time, which means you won't be spending your days turning Figma files into HTML or simply pulling tickets off a JIRA queue - rather you'll be part of the design and prototyping process using data and user research feedback as input. You'll help balance the team between innovation and pragmatism. Additionally, the team has several remote members so we use screenshares and Slack as to keep communication flowing. We have a lot of fun and hope you'll join us.

Please note that this contract position has a projected end date of November 29th, 2024

You Will:
  • Collaborate with Design and UX to prototype user interactions
  • Mentor other front-end developers
  • Ensure compatibility of code across devices and viewport sizes
  • Assess and optimize page performance and WCAG compliance
  • Work with delivery team to ensure overall quality of the experience and support this with tests and documentation.


You Have:
  • Strong communication skills with a team-centric approach to discussion and decision-making within a distributed team.
  • Expertise in JavaScript - specifically ES6, Vue.js, pub/sub architecture, and REST APIs.
  • Experience using HTML5 semantic markup, CSS3, and CSS & SVG-based animation on responsive consumer-facing websites.
  • Full command of Git, the terminal, continuous deployment and integration, and other modern fundamentals.
  • Strong troubleshooting ability and technical analysis skills - web performance optimization included.
  • WCAG accessibility experience.
  • Experience developing within CMS platforms, preferably Adobe Experience Manager 6.4 or newer.
  • Experience with performance optimization techniques
  • Experience using and configuring build automation tools (Vite, npm, etc.)
  • Agency experience.


What We Offer
  • Maternity and parental leave extra days
  • Competitive benefits packages
  • Vacation, compassionate leave, sick days, and flex days
  • Access to online services for families and new parents
  • End of year closure days (not deducted from vacation balance)
  • Diversity and Inclusion Board with 12 affinity groups
  • Internal learning and development programs
  • Enterprise-wide employee discounts
  • And more...

At Critical Mass, we value our employees and offer competitive compensation and benefits packages. If you're looking for a challenging and rewarding opportunity to make a significant impact on the lives of our employees, we encourage you to apply for this exciting position today!

The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! 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 3 days a week.

The ask stems from our want to:

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

This work model balances the need for individual flexibility while maintaining the relentless customer focus we provide at CM. 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.

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 [redacted].

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#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx