Critical Mass is hiring for an accomplished Senior Project Manager to lead high-impact digital campaigns in a fast-paced agency environment. As the primary Project Manager on a major account, you will drive strategy, own end-to-end delivery, and make immediate impact without a support net. This is an ideal role for a strategic thinker who thrives under pressure, leads independently, and is energized by managing complex projects.

You Will

• Lead campaign initiatives independently managing execution and planning
• Manage end-to-end project delivery including scope, schedule, budget, resource allocation, reporting, and change management for fast-paced digital campaigns
• Drive strategic conversations with discipline leads (creative, design, marketing science, engineering) to set approach, develop roadmaps, and align on objectives and strategies
• Operate in a dynamic, multitasking environment requiring agility to move fast, adapt quickly, and maintain focus on driving goals even under high-pressure situations
• Develop and communicate project roadmaps and timelines while managing stakeholder expectations around scope, schedule, deliverables, and business outcomes
• Own financial stewardship including budget management, revenue forecasting, and resource optimization to maximize campaign ROI
• Organize and structure complex activities with meticulous attention to detail, ensuring seamless coordination across multiple workstreams and stakeholders

You Have

• 4-6 years of agency and campaign management experience demonstrating proven capability to drive work forward independently, with preference for established Senior PM track record or strong multi-hat experience
• Mastery of core Project Management fundamentals including schedule development, scope management, financial management, resource planning, and change management
• Advanced proficiency with productivity and collaboration tools such as MS Office, Smartsheet, Keynote, Outlook, Jira, and Confluence
• Demonstrated experience managing client conversations around scope, schedule, budget, and strategic roadmaps; ability to build and maintain strong stakeholder relationships
• Strategic mindset as an approach setter, capable of establishing processes, methodologies, and frameworks rather than solely executing within existing structures
• Strong leadership and decision-making skills with excellent communication, facilitation, negotiation, and presentation abilities; demonstrated responsiveness to feedback
• Solutions-oriented leadership with the ability to lead by example, solve complex problems, and empower discipline leads to execute effectively
• Experience managing dynamic, fast-paced campaign environments with ability to multitask, prioritize effectively, and deliver quality results under pressure

What We Offer

• Global maternity and parental leave
• 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

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 in 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*