Senior Developer, Front End

2 Hours ago • 4-5 Years • $120,000 PA - $130,000 PA

Job Summary

Job Description

The Critical Mass technology team is seeking an experienced Senior Front End Developer to join their team. This role involves collaborating with Design and UX to prototype user interactions, mentoring junior developers, ensuring code compatibility across devices, assessing and optimizing page performance, and implementing high-performance web animations. The developer will work with the delivery team to ensure the overall quality of the experience, supporting this with tests and documentation. The ideal candidate will have strong communication skills, be team-centric, and possess a strong understanding of web development principles and practices, including a focus on accessibility and performance optimization.
Must have:
  • 4+ years of experience using Vanilla Javascript.
  • 5+ years of experience using HTML5, CSS3, and animation on responsive websites.
  • Proficiency in GSAP or similar web animation libraries.
  • Full command of Git, terminal, continuous deployment and integration.
  • Strong troubleshooting and technical analysis skills.
Good to have:
  • Experience with Adobe Experience Manager (AEM).
  • Experience with GraphQL or APIs with complex data structures.
  • Experience with Webpack or similar build tools.
  • Experience working in an agency environment.
  • A strong meme game.
Perks:
  • Global maternity and parental leave.
  • Competitive benefits packages.
  • Vacation, compassionate leave, sick days, and flex days.
  • Access to online services for families and new parents.
  • 13 affinity groups.
  • Internal learning and development programs.
  • Enterprise-wide employee discounts.

Job Details

The Critical Mass technology team is looking for an inspired, motivated, and experienced Senior Front End 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. We're using the latest technologies including React, ES6 JavaScript, 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.

*Please note- you must be located in The Bay Area and be available to work on site in our Cupertino office

You Will:

  • Collaborate with Design and UX to prototype user interactions
  • Mentor junior front-end developers 
  • Ensure compatibility of code across devices and viewport sizes
  • Assess and optimize page performance and WCAG compliance
  • Develop and implement high-performance, visually engaging web animations using GSAP, GreenSock, or similar animation libraries to enhance user experience and interactivity
  • 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
  • 4+ years demonstrated experience using Vanilla Javascript
  • 5 + years experience using HTML5 semantic markup, CSS3, and CSS & SVG-based animation on responsive consumer-facing websites
  • Proficiency in GSAP, GreenSock, or similar web animation libraries for creating high-quality, interactive animations
  • 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
  • Familiarity with website operations and fluency in the typical tiers on a high traffic website
  • Experience with the Atlassian suite of tools - JIRA, Bitbucket, Confluence, etc.
  • WCAG accessibility experience is preferred

You May Have:

  • Adobe Experience Manager (AEM) on version 6.3 or later, or enterprise CMS
  • Experience with graphQL or APIs with complex data structures
  • Experience with Webpack, or other tools used to optimize and maintain front-end build systems
  • Experience working in an agency environment
  • A -very strong- meme game

What We Offer:

  • Global maternity and parental leave
  • Competitive benefits packages
  • Vacation, compassionate leave, sick days, and flex days
  • Access to online services for families and new parents
  • 13 affinity groups
  • Internal learning and development programs
  • Enterprise-wide employee discounts

 

 

We continually review ranges to address skills, experience and markets. Base salaries are determined during our interview process, by assessing a number of factors that include, but aren’t limited to, a candidate’s experience and skills relative to the scope and responsibilities of the position. For current CM employees, tenure will also be a consideration.

Salary Range

$120,000 - $130,000 USD

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About The Company

Critical Mass is a team of 1,800 inspired folks based in 12 offices around the world, providing full-service digital capabilities for the greatest brands on Earth. Our secret sauce is our uncompromising design standards, our relentless focus on customers, and an ability to put powerful new technologies to work for our clients.


We work with the best—Apple, Nike, Mars Wrigley, Nissan, Diageo, Airbnb, BMW, BNY Mellon, Johnson & Johnson, and many more—brands who strive for connected digital ecosystems and unparalleled experiences. We help them get there by gaining deep insight into their consumers and orchestrating data, AI, design, media, and tech stacks around human stories.


We’re a global agency founded in Canada, but digital is our home. If you know us, then you know we’re a special, quirky place that attracts big talent and tiny egos. (We actually give out a “so f-n nice” award—lots of them). But just because we’re friendly doesn’t mean we’re not a force to be reckoned with. We’re driven. Relentless. And we live our values. We’re Critical Mass, but our friends call us CM. Please call us CM!

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