Account Manager

S3 Growth Agency; Washington (MO); Hybrid; USD 50,000 - 60,000; Full time

Job summary

S3 Growth Agency is seeking an Account Manager to own a book of business from onboarding to renewal in a hybrid St. Louis area role. You will build trusted relationships with clients, translate goals into deliverables, and drive renewals with autonomy.

You will collaborate with creative and strategy teams to deliver on client needs, identify growth opportunities, and monitor account health. The role requires strong communication, 5+ years in the field, and ownership mindset in a hybrid MO office.

Qualifications

• 5+ years of account management experience in marketing/advertising.
• Proven track record managing and growing client relationships.
• Strong written and verbal communication.
• Entrepreneurial mindset with ownership and problem solving.
• Ability to work hybrid from Fenton, MO or Washington, MO.

Responsibilities

• Own a book of business from onboarding to renewal.
• Maintain 24-hour responsiveness and drive inquiries to resolution.
• Translate client goals into deliverables with creative/strategy teams.
• Identify opportunities for account growth and expansion.
• Flag risks early and keep issues from becoming big.
• Report on campaign performance and client satisfaction.

Skills

Account management

Client relationship management

Communication

Entrepreneurial mindset

Hybrid work

Tools

CRM systems

Project management tools

Job description

S3 Growth Agency | Hybrid — St. Louis, MO area | Full-Time | $50,000–$60,000

S3 Growth Agency is growing fast and growing fast only works if the people holding our client relationships are rock-solid. We're looking for an Account Manager who can own a book of business end to end: the strategy, the follow-through, and the trust that keeps clients renewing year after year.

About S3 Growth Agency

S3 Growth Agency is a fast-growing digital marketing and advertising agency built on a simple idea: good work should be rooted in something bigger than the task list. We partner with clients who trust us with their brand, their budget, and their growth, and we don't take that lightly. As we scale, we're building a team of people who bring sharp strategic thinking, genuine ownership, and a real sense of purpose to their work — the belief that how we show up every day, in ways big and small, matters.

About the Role

A year from now, the person in this seat will be the reason our clients trust S3 with more of their business. You'll know your accounts inside and out, you'll have built relationships strong enough to weather a bumpy campaign or a tight deadline, and clients will come to you first not because they have to, but because you've earned it. You'll operate with real autonomy: making decisions, solving problems, and owning outcomes, not just tasks in a culture grounded in positivity and true difference makers in the world!

What You'll Do

• Own a book of business — serve as the primary point of contact for a portfolio of client accounts, from onboarding through renewal.
• Set the standard for responsiveness — acknowledge every client inquiry within 24 hours or less, and drive it to resolution from there.
• Translate client goals into action — work with our creative and strategy teams to turn what a client needs into what actually gets delivered.
• Spot growth opportunities — identify where existing accounts could expand in scope, and bring those opportunities forward.
• Get ahead of problems — flag risk early, communicate proactively, and keep small issues from becoming big ones.
• Report on account health — track campaign performance and client satisfaction, and know what story the numbers are telling.
• Think and act like an owner — bring an entrepreneurial mindset to how you manage your accounts, your time, and your priorities.

What We're Looking For

Required:

• 5+ years of account management experience, ideally within a marketing or advertising agency.
• A demonstrated track record of managing and growing a portfolio of client relationships.
• Strong written and verbal communication skills — you can represent the agency well in front of any client.
• An entrepreneurial mindset — comfortable making decisions, solving problems, and owning results without heavy oversight.
• Ability to work hybrid from our Fenton, MO or Washington, MO office as needed.

Preferred:

• Experience specifically in digital marketing account management (paid media, social, SEO, or similar).
• Familiarity with project management tools and CRM systems.
• A natural fit with a mission-driven culture — someone who sees their work as connected to a purpose bigger than the day-to-day.

Salary range: $50,000–$60,000, based on experience.

S3 Growth Agency is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, national origin, age, disability, or any other protected status.