Lead Developer - Front End

4 Months ago • 5 Years +

Job Summary

Job Description

Job Details

The Front-End Technology Lead (TL) is responsible for writing sustainable code, performing code reviews, creating and maintaining technical documentation, while being a key contributor to their teams and projects. A Front-End Technology Lead acts as a technical leader on their projects by ensuring that the team maintains high levels of performance while building upon and strengthening the relationship with the client. 

This role will join a talented team delivering digital projects which drive to the world’s most trafficked websites. Using the latest technologies, we deliver clean and component-based approaches with reusable, innovative, and responsive experiences. There is an emphasis on world class design & accessibility on all deliverables. 

The TL will need to have a strong focus on cross-functional collaboration. They will be working closely with developers, but also designers, copywriters, and project managers. Additionally, the team has several remote members, so we use screenshares and Slack to keep communication flowing. We have a lot of fun and hope you'll join us.


 You will: 

  • Support or deliver client presentations regarding technical perspectives. 
  • Review code, mentor and uphold coding guidelines and best practices for more Junior teammates. 
  • Own the technical architecture and design of the web solution while overseeing the front-end development activities. 
  • Gather new user and business requirements, map them to appropriate technical solutions, and estimate the associated development tasks. 
  • Ensure concise and clear documentation is maintained. 
  • Own software release activities including but not limited to: reviewing code changes, client demonstrations, QA hand-offs, and presenting solutions and justifications for tasks. 
  • Debug or troubleshoot complex or critical issues that cannot be handled by junior positions and provide root cause analysis. 
  • Evaluate project scaffolding and associated automation tools for the project. 
  • Create training programs for technologies within fields of expertise. 
  • Setup regular one-on-one meetings to provide coaching, feedback, career development, and status reporting to direct reports. 
  • Ensure compatibility of code across devices, viewport sizes and browsers. 
  • Assess and optimize page performance and maintain WCAG compliance. 

You have: 

  • Advanced English Proficiency (B2+ reading, writing, and conversation) 
  • Strong communication skills with a team-centric approach to discussion and decision-making within a distributed team. 
  • At least 5 years of experience working with Front-End technologies (HTML/CSS/JavaScript). 
  • Work experience with cross-browser and cross-device compatibility. 
  • Work experience with Responsive development. 
  • Expert knowledge of recent development patterns and practices (Mobile First, MVC, Object Oriented development). 
  • Expert knowledge of integrating front-end solutions with APIs and web services. 
  • Proficiency with popular JavaScript frameworks and cross-browser compatibility. 
  • Knowledge of design patterns (e.g., model-view-controller, observer, object-oriented, etc.) and working with several mainstream libraries and frameworks (React, VueJS, or any other). 
  • Experience with unit-testing best practices and libraries. 
  • Capable of writing code compliant with modern accessibility (eg. ARIA, WCAG, Microformats, ADA, RDF) and SEO guidelines and best practices 
  • Capable of working with new technologies and building proof of concept prototypes. 
  • BS in Computer Science or related technical discipline; or equivalent strong experience as Software Development Lead in exact areas of expertise required for CM (Digital Agencies projects, Web development projects, SCRUM/Agile software projects). 

You may have: 

  • Experience developing within CMS platforms, preferably Adobe Experience Manager 6.4 or newer. 
  • Experience with performance optimization techniques. 
  • Animation skills (WebGL, ThreeJS, GSAP). 
  • Experience with GraphQL. 
  • Experience with Typescript. 
  • Experience using and configuring build automation tools (Webpack, Gulp, etc.). 

What We Offer:

  • 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 program

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.

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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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