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Location
In office (San José)
Seniority
Junior · 1+ year exp
Visa
Sponsors visas in United States; no register of this country names it

Confirmed on the employer's own hiring board on Nov 9, 2026. First seen by Alion on Nov 4, 2026. Critical Mass scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Critical Mass is an award-winning full-service digital experience design agency with a relentless focus on the customer. We.

The Content Author (CA) is responsible for creating, editing and tracking down the content within a CMS environment, which also implies interacting with majority of stakeholders in a project. As a CMS project owner, CAs strive to deliver excellent results to benefit both the project and the team.

A CA works with web applications and a variety of front-end technologies including HTML, CSS, JS and is comfortable with content management systems platforms.

You will

  • Create or update content in the CMS (AEM, Sitecore, TeamSite) on basic HTML, CSS and JS to ensure the pages accurately reflect the client requirements.
  • Works closely with Creative, Business, Technology and QA teams to ensure quality and punctual web development
  • Implements technical solutions following the Capability’s best practices
  • Debugs or troubleshoots simple issues in existing web applications
  • Provide feedback on policies and procedures when an opportunity for improvement exists
  • May manage GIT repositories (Branches, merges, commits, etc.).

You have

  • English Proficiency (B2+ reading, writing, and conversation).
  • 1+ years of experience working with content management systems (AEM, Sitecore, TeamSite)
  • Knowledge of Cross-browser and Responsive development
  • Familiar with basic front-end technologies such as HTML, CSS and JS.
  • Experience manipulating and administering website content.
  • Familiar with JIRA or similar issue tracking tool
  • Experience using best practice version control methodologies.
  • Knowledge in Agile methodologies is a plus.
  • Familiarity with data transfer formats popular in web applications (eg. JSON, XML)

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
  • 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. 

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  

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