Senior Performance Specialist, UK (£40-45k + bonus)

Location: London, UK
Department : Programmatic Solutions

About Channel Factory
Channel Factory provides intelligent marketing solutions for the next generation of contextual safety, suitability, and performance for brands and agencies. Our platform helps marketers implement, automate, and scale their marketing programs across the world’s largest video library, YouTube, and emerging growth channels. We sit at the intersection of marketing and suitability and have a mission of enabling the world’s top brands to consciously connect with the right audience in the right context, maximizing suitability and contextual performance.
Channel Factory embodies a strong culture that values diversity, collaboration, and results. Our bias towards execution balances critical thinking, analysis, and pragmatic problem solving. We expect a lot from one another and value our thoughtful and intellectually curious company culture.

Summary:
As a Senior Media Buyer at Channel Factory, you will lead the media buying strategy and execution across Google Ads, DV360, Meta, TikTok, Snapchat etc., ensuring campaigns are optimized, meet client objectives, and adhere to Channel Factory’s performance, brand safety and suitability standards, particularly on Google Ads & DV360. This senior role requires a deep understanding of digital advertising, excellent analytical skills, and the ability to mentor junior team members.

Key Responsibilities:

• Develop, manage, and optimize performance campaigns across multiple digital channels, ensuring alignment with business objectives.
• Own budget responsibility for accounts, including margin management, forecasting, and optimization to maximize efficiency and ROI.
• Leverage data insights to drive strategic decision-making, ensuring campaigns deliver on KPIs.
• Implement and optimize cross-platform campaigns with a deep understanding of platform algorithms and auction dynamics.
• Utilize contextual and audience segmentation, creative testing, and automation strategies to improve campaign performance.
• Collaborate with internal stakeholders to drive campaign success.
• Stay ahead of industry trends, platform updates, and emerging technologies to maintain a competitive edge.
• Provide in-depth performance reporting, including actionable insights and recommendations for scaling initiatives.
• Attend and represent the team at regular external and internal client meetings.
• Mentoring junior members of the team to increase quality and performance.

Qualifications & Experience:

• 5+ years of hands-on experience managing campaigns across Google, Meta, TikTok, Snapchat, LinkedIn, and X.
• Analytical and critical thinking skills.
• Solutions-oriented mindset with great attention to detail.
• Keen eye for detail and understanding of budget management.
• Expertise in A/B testing, creative optimization, and audience targeting.
• Ability to work cross-functionally with internal teams and external partners.
• Strong communication and presentation skills.
• A proactive, problem-solving mindset with a passion for performance marketing.
• Deep expertise in conversion tracking, attribution modeling, and first-party data utilization.
• Proficiency in Google Analytics (GA4), Google Tag Manager (GTM), and tracking implementation across web and app environments.
• Strong understanding of incrementality testing, MMM and lift studies.
• Hands-on experience with third-party measurement & verification tools.
• Strong data-driven mindset with the ability to interpret analytics, optimize performance, and drive measurable outcomes.
  

Why Join Us?

• We’re a people-first company with a passion for fresh thinking, bold ideas, and driving change across the digital ecosystem.
• Take ownership of client relationships and lead strategic initiatives for global brands and agencies.
• Operate in a fast-paced, data-led environment where you can drive real impact.
• Grow your expertise in contextual and programmatic advertising solutions.
• Collaborate with a supportive, inclusive team that values creative thinking and continuous learning.
• Access clear development pathways and career progression opportunities.
• Enjoy a competitive salary and benefits package.