Senior Copywriter

8 Hours ago • 5 Years + • Editorial

Job Summary

Job Description

As a Senior Copywriter, you will be a seasoned storyteller collaborating with creatives and strategists to bring a digital voice to life. You will grasp communication challenges and devise imaginative solutions that are both brilliant and on-brand. With an editor's eye for detail and an ability to juggle multiple campaigns, you will optimize text through global/structural changes, line editing, and alignment with brand best practices. Your role involves interacting with project teams, reviewing copy for brand alignment, providing guidance on creative revisions, and working with cross-functional partners to drive consensus. You will also audit existing templates and guidelines and create/revise new ones to empower partners in their email projects. A minimum of 3 days a week in the office is expected.
Must have:
  • 5+ years of copywriting or editing experience
  • Experience with interactive media and direct marketing
  • Ability to adhere to internal brand guidelines
  • Exceptional writing and editing skills
  • Quick, creative thinking with attention to detail
  • Strong understanding of marketing and advertising principles
  • Ability to work on multiple projects simultaneously
Good to have:
  • Experience in an agency, publishing, or journalism environment
  • Experience with optimizing text through global/structural changes
  • Line editing skills
  • Alignment with brand best practices
  • Knowledge of social media, usability, online marketing, and traditional advertising
  • Dynamic leadership skills
  • Mentoring junior copy staff

Job Details

As a Senior Copywriter, you are a seasoned storyteller who loves to collaborate with creatives and strategists to bring a digital voice to life. Grasping communication challenges and devising imaginative solutions that are both brilliant and on-brand is what you do. 

You have a copy editor’s eye for detail and a managing editor’s ability to juggle multiple campaigns at once. Skills like optimizing text through global/structural changes, line editing, and alignment with brand best practices are in your toolbox.  

To demonstrate high-quality, insightful approaches with outstanding results, you pull from a wide variety of experiences on past projects. Copy is your comfort-zone, but you’ve got a well-rounded knowledge of the broader industry—social media, usability, online marketing, and traditional advertising. You’re also a dynamic leader who can be point on copy development for complex campaigns and be an inspiring mentor to junior copy staff.


You Will:

  • Interact with project teams to understand business objectives and audience demographics
  • Review copy (alongside design) to align with brand guidelines and optimize scanability, clarity, and succinctness. 
  • Provide guidance on creative revisions to up-level content within our client’s voice and tone.
  • Work with cross-functional partners to drive consensus across teams and advocate for solutions that balance the needs of Campaign Owners (and the guests and hosts who will be receiving the comms) with our business goals.
  • Work with design partners and CD to audit existing templates, guidelines, and select teams’ past comms. Create/revise/advise on new templates and guidelines as needed to empower our partners to better execute their email projects

You Have:

  • 5+ years’ experience as a copywriter or editor in an agency, publishing, or journalism environment—including experience with interactive media and direct marketing.
  • Ability to internalize and consistently adhere to internal brand guidelines
  • Exceptional writing and editing skills, including the ability to quickly review, edit, and QA a wide variety of comms.
  • Proven aptitude for quick, creative thinking with acute attention to detail within demanding deadlines.
  • A strong understanding of marketing (especially direct marketing) and advertising principles.
  • The ability to work on multiple projects simultaneously and effectively juggle diverse writing demands.

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.

Critical Mass is an equal opportunity employer. 

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 

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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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