Client Services Manager (City of London)

Our client is a programmatic provider who are data fuelled, audience-obsessed and creatively charged. For over 10 years they have helped brands discover new customers and unlock incremental growth by combining rich behavioural insight with precision programmatic activation.

They're a close-knit team, with a collaborative culture, and a genuine passion for helping brands grow. They're now looking for a driven, detail-loving and strategically minded Client Services Account Manager to join the growing team. This is an exciting opportunity for someone with solid client-facing experience and who’s passionate about digital media, programmatic advertising , and building high-impact client relationships.

You’ll work closely with senior leaders and delivery teams to manage day-to-day client relationships, plan and oversee programmatic campaigns, and uncover new growth opportunities. You’ll become the go-to for clients—someone who gets their business, solves problems before they arise, and always adds value.

Responsibilities:

• Own day-to-day client communications, building trust and demonstrating strategic value at every touchpoint
• Lead kick-offs, mid-campaign check-ins, and post-campaign reviews with insight-led storytelling
• Act as the key link between client stakeholders and our internal teams (sales, tech, creative, trading)
• Be proactive, solution-focused, and always one step ahead of client needs
• Translate briefs into programmatic strategies that align with client KPIs
• Use planning tools, first-party data and audience insights to craft impactful media plans
• Collaborate with traders and performance specialists to optimise campaigns in-flight
• Deliver clear, compelling PCAs and business reviews that drive renewals and growth
• Protect and grow client revenue through upweights, renewals and cross-sell opportunities
• Ensure timely forecasting and accurate reporting of financials and performance
• Maintain excellent internal process hygiene (status docs, briefings, timelines, POs)
• Spot inefficiencies and suggest new tools, tactics or services to improve our client offering
• Stay ahead of industry trends, competitor activity and client category news
• Champion new ideas—from creative asset suggestions to smarter ways of working
• Support the sales team at events and new business meetings when needed
• Share learnings and successes with the team, helping us all level up

Skills:

• 3+ years of experience in a client-facing role within digital media, agency, or ad tech business
• Strong understanding of Programmatic Advertising and audience planning
• Exceptional communication, presentation and stakeholder management skills
• A proactive attitude with a creative, solutions-first mindset
• Highly organised with an eagle eye for detail and deadlines
• Confidence using Excel, PowerPoint, Outlook; bonus if you’ve used Adobe, Notion, or AI tools like ChatGPT
• Someone who thrives in a small, dynamic team and wants to make a big impact