Media Trading & Client Services Manager in London

At the COOL company, we believe in creating a win‐win environment where everyone benefits. We are committed to ensuring users, publishers, franchisees, and advertisers all have a better experience and achieve more than they ever thought possible through our innovation, advanced AI, groundbreaking advertising technology, and teams of inspired experts.

COOL Media products under the COOL company include:

• DCO & Creative Automation, a data‐driven, creative ad server capable of personalizing, automating, measuring, and optimizing digital ads and placements for advertisers;
• Franchise & Multi‐Location, a complete advertising management platform for franchise and network businesses;
• Media & Attribution, a managed service solution for agencies and brands to reach and measure audiences;
• Publisher Experiences, a premier SSP and engagement platform for publishers;
• Supply‐Side Platform, delivering website and app publishers everything they need to maximize their ad revenue.

Coming soon in 2026, COOL AI is a next‐generation advertising platform that builds, buys, and optimizes digital ad campaigns faster and smarter using AI. It automates every step of the media journey—from generating ad creatives to launching campaigns and optimizing performance across channels like Google and Facebook.

Collectively, the COOL company reaches over 350 million consumers monthly across their network of premium publishers and advertisers, including Disney, Hyundai, Air France, Kohler, Suzuki, Acer, Pearle Vision, Trek, Brita, Viking Cruises, MLB, Playmaker, Blitz, Evolve Media, and more.

Core Values:

• Creative – we look to find solutions that others can’t and new ways of doing things that are smarter, faster, better and more efficient.
• Open‐minded – we’re always evolving and keep an open mind as to new ways of doing things, new solutions and new processes that can help us.
• Optimistic – The glass is always half full :) as a growing tech startup we’re always faced with new challenges, we overcome them because we see them as opportunities.
• Leaders – We look for drivers, people who like to set the pace of the organization, who don’t simply go with the flow, you’re setting a fast impact pace and holding others to it.
• Sleeves Up – we provide you with the autonomy and creativity needed to own your role.
• 100% Viewability – the company is passionate about open feedback at all levels of the company.
• Be Defiantly Great – we’re defiant, and that’s in our blood. Challenging the status quo is a central part of who we are.

The Media Trader & Client Services Manager is a dual‐function role blending hands‐on programmatic media trading with end‐to‐end client relationship management. You’ll lead campaign strategy, activation, optimisation, and performance reporting across BVOD, CTV, Display, DOOH, Audio, and Video channels, while managing client communications, insights, and business growth.

Key Responsibilities:

• Act as the primary day‐to‐day contact for clients, providing strategic guidance and ensuring delivery against media objectives.
• Join client meetings, briefings, and performance reviews with confidence and clarity.
• Translate client goals into actionable media plans, working across programmatic platforms and audience strategies.
• Plan, set up and optimise programmatic campaigns across multiple DSPs (Adform, Freewheel, Amazon, StackAdapt, etc.).
• Curate supply with leading SSPs.
• Manage campaign trafficking, tag QA, pacing and delivery across channels.
• Adjust bids, audiences, and creatives to achieve KPIs (VCR, CTR, CPA, ROAS).
• Partner with creative and tech teams to activate and QA DCO and pixel integrations.
• Deliver weekly and post‐campaign reporting with actionable insights.
• Analyse performance data via log‐level and platform dashboards (GA4, Adform, IAS, MOAT, etc.).
• Present results and optimisation recommendations to clients and internal stakeholders.
• Help interpret data and explain media effectiveness, including CPMs, CTRs, VCRs, CPA and ROAS.
• Support testing strategies, audience insights, and ongoing performance improvements.
• Work closely with senior team members to support account growth and campaign innovation.
• Contribute to internal process improvement and innovation initiatives.
• Collaborate closely with internal trading, ad ops, analytics and product teams across multiple time zones.
• Assist with onboarding new clients, preparing presentations, and participating in QBRs and pitch responses.

Skills & Experience:

• 5+ years of experience in programmatic media buying, ad ops and client service.
• Hands‐on experience in one or more DSPs (Adform, Xandr, The Trade Desk, DV360, Freewheel, etc.).
• Understanding of campaign metrics, optimisation levers and verification tools (IAS, MOAT, DV).
• Excellent communication skills with the ability to translate campaign data into client‐ready insights.
• Well‐organised, proactive, and able to manage multiple campaigns and deadlines.
• Familiarity with DCO, log‐level data and attribution frameworks is advantageous.
• Team player who thrives in a collaborative, fast‐paced environment.

Why Join Us:

• Work across innovative campaigns using the latest in programmatic tech.
• Access to industry‐leading tools, platform certifications, and professional development support.
• Join a dynamic, supportive team that values curiosity, ownership, and creativity.
• Flexible working arrangements and a culture that values both results and wellbeing.