Senior Account Manager

Critical Mass is hiring a Senior Account Manager to join our team on ArtBot! ArtBot is a next-generation content orchestration platform, combining creative and performance engineering with AI-driven technology to unlock automation and performance at scale. We specialize in data-driven, personalized creative across digital channels, helping clients realize the full value of Dynamic Creative Optimization (DCO).

Join a dynamic team at the intersection of creative, media, and technology, where your strategic leadership directly shapes client success, team growth, and the future of content delivery.

You Will:

• Report directly to the Account Director and take full ownership of managing a portfolio of clients within a pod structure, building and nurturing trusted, high-impact relationships with clients across a diverse range of industry verticals.
• Lead the planning, execution, and optimization of DCO campaigns end-to-end, acting as the primary strategic partner and point of contact, ensuring seamless, timely, and high-quality project delivery from concept to completion
• Identify and develop growth opportunities and areas for process refinement within existing accounts that drive revenue and deepen client partnerships
• Own the commercial and financial aspects of your accounts, including SOW & PO management, budget oversight, financial forecasting, and ensuring profitable delivery of services
• Lead, mentor, and develop a team, fostering professional growth, delegating strategically, and building a high-performing account management function
• Collaborate strategically with internal teams—including activation, strategy, development, and design—to translate ambitious client objectives into clear, actionable deliverables and innovative solutions
• Analyze campaign performance data at a strategic level, identify optimization opportunities and market trends, and provide clients with forward-thinking insights and recommendations that drive measurable results
• Build strong stakeholder relationships at multiple levels within client organizations

You Have:

• Minimum 3 or more years of proven experience as an Account Manager, Client Services Manager, Customer Success or similar client-facing roles within digital media, creative, technology, or advertising environments
• Minimum of 3-5 years of total industry experience demonstrating consistent progression
• Hands-on experience with Digital Creative Optimization (DCO) campaigns or deep grounding in the digital creative space. (Candidates with DCO knowledge without hands-on experience may be considered if otherwise exceptional and outcome-driven)
• Automotive digital advertising experience or familiarity with automotive verticals, considered a strong advantage
• Demonstrated success leading, mentoring, and developing junior team members, with the ability to delegate effectively and foster professional growth
• The capacity to quickly establish trust, rapport, and credibility with clients and internal stakeholders at all levels
• Proficiency with Microsoft Office suite, particularly presentations and slide building, with familiarity of industry tools such as DoubleClick Studio, Google Campaign Manager, Photoshop, Innovid, or Flashtalking a significant plus
• Analytical mindset with the ability to interpret campaign performance data, use pivot tables and analytics platforms, and translate insights into actionable strategy
• Exceptional organizational skills and attention to detail
• A collaborative, proactive, team-oriented approach with genuine comfort working cross-functionally with diverse internal teams
• High level of initiative, adaptability, and resilience in a fast-paced, evolving environment
• A genuine passion for building strong client relationships and delivering exceptional outcomes that drive business growth

 What We Offer:

• Global maternity and parental leave
• Competitive benefits packages
• Vacation, compassionate leave, and sick days
• Access to online services for families and new parents
• Summer Fridays (off at 3:00 PM local time every Friday)
• 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 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. 

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