London-based Senior Client Partner, Media & Growth

Rebel Lion Advertising Limited; Greater London; Hybrid; GBP 60,000 - 90,000; Full time

Benefits offered by this job

25 days annual leave

Private healthcare after probation

Company pension scheme with employer'"

Company laptop and full working setup

Training and professional development

Regular team and company events

Wellbeing support and mental health

Flexible working where appropriate

Job summary

R4 Advertising in London seeks a Senior Client Account Director to take ownership of a portfolio of local clients, ensuring campaigns are delivered accurately, commercially and reputationally sound from brief through activation.

The role focuses on protecting clients, maintaining commercial standards and driving year-on-year spend growth through strong relationship management and disciplined delivery.

Qualifications

• Proven experience in account management within advertising or media.
• Strong understanding of media planning and buying (OOH experience preferred).
• Commercially minded, with experience managing client budgets and spend.
• Detail-focused, organised and process-driven.
• Confident managing multiple senior client relationships.
• Calm, structured and reliable under pressure.
• London-based, with strong local market knowledge.

Responsibilities

• Own and manage a portfolio of London-based clients.
• Act as the primary point of contact, building long-term trusted relationships.
• Maintain and grow existing client spend year-on-year.
• Be accountable for commercial retention targets and client value.
• Protect and nurture client relationships to ensure deliverables exceed expectations.
• Translate client objectives into clear briefs for planning and trading teams.
• Ensure media is correctly traded, planned and activated in line with R4 standards.
• Manage campaigns end-to-end with a high level of accuracy and attention to detail.
• Identify risks early and resolve issues before they escal.
• Maintain clear documentation, confirmations and campaign records.

Skills

Account management

Media planning

Budget management

Attention to detail

Client relationship management

Calm under pressure

Local market knowledge (London)

Job description

R4 Advertising in London seeks a Senior Client Account Director to take ownership of a portfolio of local clients, ensuring campaigns are delivered accurately, commercially and reputationally sound from brief through activation.

The role focuses on protecting clients, maintaining commercial standards and driving year-on-year spend growth through strong relationship management and disciplined delivery.