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AdOps Specialist

Criticalmass

San Jose, Costa Rica (San Jose) permanent

Posted: December 15, 2025

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Job Description

As an Ad Operations Specialist, you own the trafficking and QA process for digital media activities across channels. Creating a relationship with media colleagues across practises will help you excel in a job requiring fast thinking, accuracy, and versatility.

You will:

• Own the QA process, from campaign set up to launch and maintenance.

• Work with third party vendors to verify creative updates and rotations.

• Work with external partners to troubleshoot campaign issues.

• Have some experience with dynamic ad serving partners (DCO).

• Ensure pixels and tags are firing properly on campaign landing pages.

• Manage deadlines and workflow.

• Own the quality and consistency of your deliverables.

You have:

• 2-3 years’ experience in advertising operations.

• Fundamental knowledge of CM360 and Social platforms.

• Base skillset in standard and rich media ad trafficking software for display, video, mobile, search, and other emerging channels.

• Ability to multi-task and meet deadlines, while paying attention to details.

• Ability to work effectively under stressful situations and tight deadlines.

• Core project management, planning, and organizational skills.

• Strong problem-solving skills.

• Ability to work independently and seek help when needed.

• Flexibility in a constantly changing environment.

What We Offer:

• Maternity and parental leave extra days

• Competitive benefits packages

• Vacation, compassionate leave, sick days, and flex days

• Access to free 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 focuses on providing 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, 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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