Client Service Director

Company description

At Boomerang, we believe brands are built on social . It’s where culture lives. Where attention is won. And where brands get to show who they really are, connecting one-on-one with their audience. Our clients get that. For over 15 years, we’ve helped both local and global brands build meaning and momentum through a smart mix of always-on content, campaigns, bold creative and production, community management, and influencer & creator marketing.

Our team of creative thinkers, trend watchers, and strategists see brands as characters, each with their own voice, attitude, and role in culture. Everything we do is driven by stories that truly resonate, and strategies designed to stand out where it matters most.

Overview

Are you an experienced (Dutch) client services leader who thrives on building long-term partnerships, driving business growth, and leading high-performing teams? Do you have a proven track record of managing senior client relationships, overseeing complex global accounts, and creating an environment where teams and clients succeed together?

At Boomerang, we're looking for a Client Services Director to lead our partnership with our biggest client. This role will primarily focus on the Global social workstream, while also supporting the Netherlands and  Product Innovation. Alongside leading these client relationships, you will play an active role in driving growth and contributing to new business opportunities for the agency.

As Client Services Director, you are the senior strategic lead and trusted advisor across a portfolio of the business. You are responsible for the overall health, growth, and success of the client relationship, ensuring exceptional service delivery, commercial performance, and high-quality work across all projects and workstreams.

You will lead the client project team, strengthen collaboration across disciplines, and identify opportunities to grow existing business while helping bring new clients into the agency.

Responsibilities

Client Leadership & Growth

• Act as the senior client partner across Global, Netherlands, and Product Innovation.

• Build strong relationships with key stakeholders and provide strategic counsel.

• Drive account growth by identifying new opportunities within existing client relationships.

• Contribute to new business development, pitches, and agency growth initiatives.

• Ensure exceptional client satisfaction and long-term partnership success.

Client Service & Operational Excellence

• Champion best-in-class client service across all workstreams.

• Oversee the successful delivery of social content, campaigns, sponsorships, and innovation initiatives.

• Ensure seamless collaboration between client service, strategy, creative, production, and project management teams.

• Maintain oversight of project quality, timelines, budgets, and client expectations.

Commercial & Financial Leadership

• Own account profitability, forecasting, revenue growth, and commercial performance.

• Lead scope discussions, contract negotiations, and fee management where required.

• Ensure strong financial governance and operational efficiency across the portfolio.

Team Leadership & Development

• Lead, mentor, and develop the project team.

• Foster a culture of collaboration, accountability, and excellence.

• Support career development through coaching, feedback, and performance management.

• Oversee resource planning and team structure to ensure sustainable growth.

Qualifications

• Must be a Native Dutch speaker with full professional fluency in English.
• 10+ years of experience in client services, account leadership, or agency management.
• Proven experience managing senior stakeholders and global client relationships.
• Strong commercial acumen with experience driving growth and profitability.
• Experience leading and developing high-performing teams.
• Strategic thinker with excellent communication and relationship-building skills.
• Proactive, entrepreneurial mindset with a passion for growing client partnerships and winning new business.

Additional information

Why Join Us?

• Lead one of Boomerang's most important client partnerships.

• Play a key role in shaping agency growth and client success.

• Work on a globally recognised brand, campaigns, and innovation projects.

• Be part of a collaborative, ambitious, and fun team culture.

What do we offer?

• A competitive salary, a laptop, and travel expense reimbursement.
• The opportunity to (continue to) develop yourself and the option to take courses/workshops.
• Opportunity to work on big brands and with an experienced global agency across multiple verticals.
• A super ‘gezellig’ (if you know you know) and brand new office in the Staal-Kade building, Zuid area of Amsterdam (moving in December 2026).
• The Work Your World Program: the opportunity to work elsewhere in the world for 6 weeks a year.
• Discounts on Classpass and a bike plan.
• A work environment where everyone feels heard, valued, and respected.

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