Account Manager

CMIUS Critical Mass (U.S.) Inc; United States; On-site; USD 70,000 - 90,000; Full time

Job summary

Critical Mass in the United States is seeking an Account Manager to partner with clients and colleagues, manage day-to-day campaign operations, and drive projects forward with hands-on execution.

Under mentorship from an Account Director, you will own campaigns, coordinate with media, creative, ad ops, and strategy teams, nurture client relationships, and contribute ideas to enhance outcomes.

Qualifications

• 3–5 years of relevant account management experience.
• Experience with media planning, asset management, and multi-channel campaigns.
• Collaborative, able to work with cross-functional teams.
• Strong interpersonal and communication skills.
• Attention to detail and excellent organizational abilities.

Responsibilities

• Manage day-to-day campaign operations and trafficking.
• Coordinate with media, creative, ad ops, strategy teams.
• Own campaigns and expand into larger events or launches.
• Serve as primary client contact and nurture relationships.
• Support Account Director and contribute new ideas.
• Ensure creative and messaging align with channel strategy.

Skills

Account management

Media planning

Asset management

Cross-functional teamwork

Communication

Job description

Agency: Critical Mass

Job Function: Account Management and Growth

Job Subfunction: Account Management

Job Description: As an Account Manager at Critical Mass, you are a key partner to both clients and colleagues, playing an essential role in managing day-to-day business needs, driving projects forward, and building strong relationships. With support and mentorship from an Account Director, you thrive in a collaborative environment, enjoy hands‑on execution, and are eager to take ownership of projects and campaign deliverables. Your commitment to excellence ensures client satisfaction, seamless operations, and opportunities to grow within a dynamic team.

You Will:

• Manage day-to-day campaign operations, including media plan fulfillment, creative adjustments, and ensuring accurate trafficking setup through close coordination with ad operations
• Collaborate cross-functionally with media, creative, ad operations, project delivery, and strategy teams to ensure all deliverables are met on time and to expectations
• Take ownership of campaigns and project work, with the opportunity to expand into leading larger sales events, launches, or asset creation initiatives
• Serve as a primary point of contact for clients, fostering open, collaborative relationships and ensuring daily needs and long-term goals are met
• Support the Account Director in running the business, while also bringing forward new ideas and unique solutions to enhance client outcomes
• Maintain a strong understanding of digital and traditional media requirements, ensuring all creative and messaging aligns with channel strategy and best practices

You Have:

• 3-5 years of relevant account management experience, ideally in digital marketing; automotive experience is a plus but not required
• Demonstrated experience with media planning, creative asset management, and multi-channel campaign execution
• Collaborative approach, with the ability to engage cross-functional teams (media, creative, ad ops, strategy, SEO/MKS, and external partners)
• Excellent interpersonal and communication skills, with a focus on partnership, active listening, and collaborative problem-solving
• Ability to manage multiple priorities and projects with strong attention to detail and organizational skills
• Knowledge of both digital and traditional media and how to set up creative and copy for optimal channel performance
• A growth mindset - willingness to take initiative, own projects end-to-end, and seek out opportunities for professional development and ownership

Salary Range:

$70,000 - $90,000 USD

To the extent permissible by local law, Omnicom's policy requires employees to work in the office for a minimum of three days a week, unless additional in-office days are directed by their agency or manager.

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Join us- we look forward to getting to know you.

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