Paid Media Manager - Third

About third

Third is a modern-commerce growth company helping brands turn new and emerging platforms into real sales channels.

Our integrated acquisition strategy connects best-in-class teams across TikTok, Whatnot, Meta, Snap, and beyond - eliminating the need to stitch together multiple partners.

Third blends deep niche expertise with modern execution to launch, operate, and scale commerce on new platforms, transforming culture, creators, and content into real product sales.

The Role

The Paid Media Manager owns full-funnel media performance for a portfolio of Third clients across TikTok Shop (Product GMV Max and GMV Max LIVE), TikTok Ads, Meta, Google Search and YouTube. You’ll manage accounts end to end: media strategy, account architecture, campaign builds, budget allocation and pacing, in-platform optimization, and performance reporting.

Our book spans single-brand TikTok Shop launches through multi-brand, cross-channel programs optimized to GMV, ROAS, CAC and 30-day revenue. This is a hands-on, in-platform role for someone who can also translate performance into clear recommendations for clients.

What You’ll Do

Media strategy and account setup

• Run account audits covering pixel/CAPI and event tracking, UTM taxonomy, catalog health and account structure before launch.
• Build channel-level media plans with clear budget splits, KPIs and benchmarks tied to client business goals.
• Plan launch flighting and test-and-learn phases from launch through scale.

TikTok Shop and GMV Max

• Build and manage Product GMV Max and GMV Max LIVE campaigns, including hero-SKU selection, ROI targets and SKU-level budget reallocation.
• Run pre-heat, engagement and awareness campaigns flighted around LIVE sessions to drive live-room traffic.
• Report GMV Max performance on GMV, ROI, SKU and campaign efficiency, LIVE and promo results, without overstating paid vs. organic attribution.

Meta, Google Search and YouTube

• Balance broad and Advantage+ delivery with structured audience testing: 1P customer lists, custom audiences, lookalikes, retargeting, interest stacks and engagers.
• Manage Search with branded and non-brand campaigns segmented, keyword and search-term management, and bid strategy optimization.
• Run YouTube for mid-funnel consideration using custom intent and in-market audience signals with action-oriented video formats.

Optimization and budget management

• Daily: pacing, bids and bid strategies, budgets, search terms, audience signals and delivery anomalies.
• Weekly: KPI performance vs. benchmark, test reads, creative performance trends and budget shifts.
• Monthly: performance to goal, spend reallocation and scale recommendations.
• Own budget pacing to plan across channels, campaigns and SKUs.

Creative testing and insights

• Partner with Performance Creative on the creative testing roadmap: surface top performers, flag creative fatigue and recommend new concepts and iterations.
• Evaluate creative on attention and efficiency metrics (hook rate, hold rate, 6-second views, watch time, CTR, CPM).

Reporting and client communication

• Deliver weekly performance reporting with KPIs vs. benchmark, key insights and next actions.
• Maintain live client dashboards covering spend, content and creator spend, platform-level results and recommendations.
• Build LIVE scorecards per session (views, view duration, follows, orders, GMV, ROI, change vs. prior LIVE).
• Lead weekly client calls and contribute media strategy, KPI and roadmap slides for pitches and QBRs.

What We’re Looking For

Must have

• 3-5 years hands-on paid media, ideally agency-side, managing a multi-client book of business
• Enterprise client experience: managing large-budget, multi-brand accounts with senior stakeholders, formal approval processes and executive-level reporting
• Proven experience building and scaling campaigns in TikTok Ads Manager, including TikTok Shop GMV Max (Product and LIVE)
• Advanced Meta Ads Manager skills: campaign structure, Advantage+ and broad delivery, 1P audience segmentation and structured creative testing