Demo

Senior UX Writer, Contract

Critical Mass
Cupertino, CA Contractor
POSTED ON 6/2/2026
AVAILABLE BEFORE 7/1/2026
Are you a seasoned UX Writer who is passionate about delivering elevated digital experiences through useful, meaningful copy? One of Critical Mass' clients is looking for a Senior UX Writer who is exceptional at driving the direction of content and creating cohesive product narratives across multiple platforms and touch points. Our team works across the client's transactional projects, touching everything from complex user flows to micro copy.

As a Senior UX Writer, your portfolio showcases content that improves the overall user experience. To achieve this, you've collaborated with a variety of disciplines, including user experience, design, product, engineering, etc. Working with each, you have created cohesive language and a unified voice across products and platforms.

If you're looking for an opportunity that will challenge you to devise imaginative UX solutions for one of the most recognized brands in the world, then this role is for you.

Contract Duration: June 29 to September 25

What You'll Do

  • Translate creative direction and copy points from creative briefs into engaging and effective copy concepts (incl. translate complex or technical topics into clear, accessible language)
  • Own the strategy and execution of transactional copy across email, SMS, in-app messaging, and emerging channels
  • Write and optimize transactional content (checkout flows, order confirmations, shipping updates, error states, account notifications)
  • Edit and proofread content to maintain high quality standards
  • Partner with UX, product, engineering, and legal teams to ensure copy supports business goals and user needs
  • Collaborate with creative team members to determine the conceptual and copy direction
  • Mentor junior writers and provide creative direction on transactional projects
  • Work on multiple projects simultaneously

What We're Looking For

  • 6 years of copywriting experience with significant focus on exceptional UX writing, transactional content, or product copy
  • A keen enthusiasm for and demonstrable understanding of Web trends and technologies
  • Proven ability to lead content strategy and influence cross-functional stakeholders
  • Deep understanding of user experience, conversion optimization, and customer journey design
  • Experience navigating legal, compliance, and accessibility requirements

Please note the pay range listed is hourly.

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

$80—$88 USD

Critical Mass is an equal opportunity employer.

Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.

The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.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

Salary : $80 - $88

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