Marketing Science, Analyst - Media

Critical Mass · San José

Role:

As a Media Analyst, you will support the measurement, reporting, and analysis of paid media campaigns, helping teams understand performance and identify opportunities to optimize media investments.

You will partner closely with media, strategy, and account teams to translate campaign objectives into measurable KPIs, monitor performance across channels, and turn data into clear, actionable insights. You will play a key role in ensuring reporting is accurate, consistent, and focused on the metrics that matter most to campaign and business objectives.

This role connects media performance to broader marketing goals by identifying trends, evaluating campaign effectiveness, supporting test-and-learn initiatives, and helping teams make data-informed optimization decisions.

You will:

Media Measurement & Performance

Support the development and maintenance of measurement frameworks that connect campaign objectives, media tactics, and KPIs.
Analyze campaign performance across paid media channels, including paid search, paid social, display, programmatic, online video, and other digital media.
Monitor performance against campaign goals, benchmarks, and historical results.
Identify performance trends, opportunities, and areas requiring further investigation.
Partner with media teams to provide actionable optimization recommendations.
Help establish campaign benchmarks and baselines using historical performance data

Reporting & Insights

Develop recurring campaign performance reports and dashboards across media channels.
Translate media data into clear insights, implications, and recommended actions.
Support monthly, quarterly, and campaign recap reporting, including Quarterly Business Reviews.
Analyze performance by channel, campaign, audience, creative, placement, format, and other relevant dimensions.
Develop concise performance narratives that help stakeholders understand what happened, why it happened, and what we should do next.
Provide creative and media optimization insights based on campaign performance

Data & Dashboards

Build and maintain dashboards and reporting tools that provide visibility into campaign performance.
Work with data from media platforms, ad servers, web analytics platforms, and third-party measurement partners.
Perform ongoing data QA to ensure reporting accuracy and consistency.
Investigate data discrepancies and partner with appropriate teams to resolve tracking or reporting issues.
Ensure campaign taxonomy and naming conventions are accurately reflected across reporting.

Collaboration

Partner closely with media planners, buyers, account teams, strategists, and analytics stakeholders.
Participate in campaign planning discussions to ensure measurement considerations are incorporated from the beginning.
Communicate findings and recommendations clearly to both technical and non-technical stakeholders.
Support senior analytics team members on larger measurement initiatives and ad hoc analyses.
Contribute analytics and media performance insights to presentations, proposals, and client deliverables.

You have:

B.S. degree in a quantitative or technical field (Economics, Mathematics, Computer Science, Business, etc.)
3–5 years of experience leading analytics deliverables in media marketing science, ideally within B2B contexts.
Experience analyzing performance across digital media channels such as paid search, paid social, programmatic display, online video, and/or connected TV.

Strong understanding of common media metrics, including impressions, reach, frequency, CPM, CTR, CPC, video completion rate, conversion rate, CPA, and ROAS.
Experience working with media platforms and reporting data from platforms such as Google Ads, Meta, LinkedIn, TikTok, DSPs, or ad servers.
Experience with web analytics platforms such as Google Analytics or Adobe Analytics.
Strong proficiency in Excel and experience working with large datasets.
Experience with data visualization and dashboarding platforms such as Tableau, Power BI, Looker Studio, or similar tools.
Ability to identify trends within complex datasets and translate findings into clear, actionable recommendations.
Strong attention to detail and commitment to data accuracy and quality.
Strong written and verbal communication skills, with the ability to explain analytical findings to non-technical audiences.
Working knowledge of SQL or other analytical tools is a plus.
Experience with B2B media, CRM, account-based marketing, or lead-generation campaigns is a plus.

What We Offer:

Global maternity and parental leave
Work-life balance
Competitive benefits packages
Vacation, compassionate leave, wellness days, and flex days
Access to online services for families and new parents
Diversity and Inclusion Board with 13 affinity groups
Internal learning and development programs
Asociación Solidarista - You can join voluntarily

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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