Senior Performance Media Buyer

Growth Collective is a performance marketing agency that works with fast-growing and category-defining ecommerce brands. The paid media systems we build and scale are directly responsible for driving multi-million-dollar revenue growth for DTC brands such as Hush, CROSSNET, Kala, Coldture, BombTech Golf, and more.

Now, we’re looking for a Senior Media Buyer to join our team in 2026 — someone who can own accounts end-to-end, scale spend efficiently, and act as a trusted strategic advisor to our clients.

This role is ideal for a buyer who thrives at scale, moves fast, understands creative-led growth, and knows how to translate performance data into confident decisions.

The Role

As a Senior Media Buyer at Growth Collective, you will fully own a portfolio of accounts, managing

roughly $1M/month in spend across Meta and TikTok.

You’ll be responsible for execution, optimization, and performance outcomes — while collaborating closely with our Creative Strategists, who own creative direction and concept development.

You’ll be client-facing, strategy-driven, and deeply accountable for results.

Core Responsibilities Campaign Setup & Optimization (50%) Own paid media accounts end-to-end across Meta and TikTok Launch, structure, and optimize campaigns using best-in-class frameworks (ASC, Broad, scaling structures) Manage budgets confidently at scale, reallocating spend based on performance signals and efficiency Run structured experiments using Meta Experiments and platform-native testing tools Maintain and improve scaling efficiency while hitting CPA and MER targets

Ad Trafficking & Execution (30%) Traffic ads accurately and efficiently across platforms Ensure campaigns are cleanly structured, properly named, and aligned with internal systems Coordinate closely with Creative Strategists to deploy creative assets effectively Maintain high creative velocity without sacrificing execution quality

Reporting & Analysis (20%) Analyze performance using Triple Whale, GA4, and platform data Identify performance trends, scaling opportunities, and efficiency risks Translate data into clear insights and action plans for internal teams and clients Monitor KPIs including Scaling Efficiency, CPA, and MER across accounts

Client Management & Strategy Lead client calls and represent Growth Collective with confidence and clarity Act as a strategic advisor, not just an executor Build strong client relationships through proactive communication and strong performance Align execution with broader business goals and paid media plans

Qualifications Fluent in conversational english and writing 3+ years of hands-on experience managing paid social accounts at scale Proven experience managing high six-figure to seven-figure monthly ad spend Deep expertise in Meta and TikTok ads Strong understanding of: Advantage+ Shopping Broad vs ASC scaling strategies Creative-led testing frameworks Budget reallocation at scale

Experience with: Triple Whale GA4 Meta Experiments Foreplay Notion Strong analytical skills with the ability to move fast and test aggressively Excellent communication skills and confidence working directly with clients

You Might Be a Fit If… You’re highly technical and obsessed with buying mechanics You move fast, test often, and make decisive budget calls You understand that creative is the growth lever — and know how to support it through media You think in terms of systems, frameworks, and scale You’re comfortable owning results and being accountable for performance You enjoy working closely with strategists, not competing with them You want to be seen as a strategic partner, not “just the buyer”

What Success Looks Like (First 90 Days) You are confidently managing and scaling client budgets You are meeting or exceeding CPA, MER, and efficiency targets You have strong working relationships with clients and internal teams You are operating independently with clear ownership of your accounts

Benefits Fully Remote Work Environment (EST) Competitive Salary: $40,000 USD Two Weeks Paid Time Off People-First, Performance-Driven Culture High-impact role with real ownership and growth potential