Senior Client Account Manager

Job Description

Senior Account Manager (digital marketing client services team)

London (Bank) | Office-based (WFH Mondays)

£45,000–£50,000 + bonus

We’re working with a high-growth marketing agency that partners with ambitious startups and scale-ups to deliver data-driven, end-to-end growth programmes. With a strong focus on performance, creative, and continuous optimisation, this is a fast-paced environment where impact and results matter.

They’re now looking for a Senior Account Manager to take ownership of client relationships with strong digital marketing account delivery across a portfolio of global B2C and B2B accounts.

The Role

You’ll act as the key point of contact for clients, ensuring projects are delivered seamlessly, on time, and aligned with measurable outcomes. Working cross-functionally with specialists in marketing, creative, and data, you’ll keep delivery running smoothly while maintaining strong client partnerships.

Key Responsibilities

Client Leadership & Relationship Management

• Own day-to-day client relationships and build long-term trust
• Lead regular client calls, set agendas, and drive actions forward
• Translate business goals into clear internal briefs and priorities
• Act as an escalation point when challenges arise

Project Delivery & Operations

• Manage end-to-end delivery across multiple marketing workstreams
• Build and maintain project plans, timelines, and resourcing
• Ensure high-quality output across all deliverables
• Identify risks early and proactively manage solutions

Commercial Ownership

• Support account profitability through accurate scoping and budget management
• Oversee billing inputs and maintain commercial accuracy
• Identify opportunities for account growth, upsells, and renewals

Performance & Reporting

• Translate campaign performance into clear, actionable insights
• Keep stakeholders aligned on progress, results, and next steps
• Maintain strong documentation of learnings and decisions

Team Contribution

• Mentor junior team members
• Contribute to improving internal processes and delivery standards
• Support pitches and proposals where required

About You

• 4+ years’ experience in account management within a marketing agency
• Strong project management skills across multiple workstreams
• Confident communicator with experience managing senior stakeholders
• Commercially aware with experience in budgeting and scoping
• Highly organised and able to thrive in a fast-paced environment
• Experience working with global clients or distributed teams
• Good understanding of digital marketing (e.g. paid media, creative, CRO, content, lifecycle, or demand generation)

Desirable:

• Experience across both B2C and B2B
• Exposure to mobile/app marketing
• Familiarity with agency tools and workflows
• Interest in leveraging AI tools to improve delivery

What’s on Offer

• Competitive salary + discretionary bonus
• Private medical insurance
• Gym access and wellness classes
• Hybrid working (WFH Mondays)
• High-spec central London office with premium facilities
• Learning & development support, including industry events
• Regular team offsites in global locations
• Clear progression opportunities in a high-growth environment

• If you’re looking to join a fast-moving agency where you can take real ownership of client success and make a tangible impact, this could be a great next step.