Investment Director

Job Description:

About Dentsu

Dentsu is an integrated growth and transformation partner to the world’s leading organisations. Founded in 1901 in Tokyo, Japan, and now present in over 145 countries and regions, dentsu delivers end-to-end experience transformation (EX) by integrating Media, CXM and Creative, underpinned by a Business Transformation (BX) mindset.

Amplifi is the investment and innovation arm of dentsu across all media channels and entertainment content. As dentsu’s supply‑side platform, Amplifi brings together Investment Management, Media Trading and Content under one proposition - delivering value for clients through leveraged buying, sustainable media income and innovative supply‑side partnerships.

The Investment Director will work closely with the Heads of Investment across dentsu X, iProspect, B2B and Carat, helping to grow our billings, drive adoption of key products and engage with media partners on a regular basis.

This role would suit an ambitious and proactive Senior Manager or Director looking to take a step into a Director-level investment role.

Working across agency teams, activation teams, with partners and clients – this is a varied and stimulating role to support in the delivery of the Amplifi and dentsu commercial goals.

We’re looking for someone who is ready to take the next step in their investment career. You may be a Senior Manager or Director, with strong media experience and a desire to broaden your commercial, partner and client‑facing exposure.

You don’t need to have done this role before. What matters is that you are commercially curious, proactive, organised, confident with stakeholders and excited by the opportunity to grow into a broader investment leadership role.

• Support monthly forecasting and reporting processes across the agency patch.
• Monitor product & billing performance, highlighting risks and opportunities.
• Support in compiling monthly reporting for senior leadership.

• Represent Amplifi in agency forums, ensuring trading and commercial objectives are clearly communicated and understood.
• Spend time embedded within agency teams in the London office, building strong relationships with client leads, client managers and planning & strategy teams.
• Compile and update Bi Annual Media Market Updates working with activation teams to deliver the content.
• Support onboarding of new business, influencing early‑stage partner / media spend direction.
• Act as a senior investment contact for selected growth accounts, supporting QBRs and client‑facing investment discussions for mid to long tail accounts.

• Build and maintain strong relationships with key media partners across London and the North.
• Identify opportunities to bring partner innovation, insight and added value to clients.
• Support the delivery of Media Partner Days, including one dedicated B2B partner event annually.
• Champion partner success stories and help increase awareness of opportunities across the agency.
• Surface and promote best‑in‑class work across priority channels and partnerships.

• Support pitch and renewal processes, working alongside HOIs and client teams.
• Work with activation teams to streamline competitive reporting for pitches.

• Strong relationships established across agencies, clients and key partners
• Growth in adoption of principal and proprietary solutions
• Successful support of pitches, renewals and client growth opportunities
• Forecast accuracy and monthly SLT reporting processes improved
• Recognition as a trusted investment specialist and advisor across the business

• A background in media strategy, planning, activation or commercial trading
• Strong relationship‑building skills and a collaborative working style.
• Confidence presenting to clients and internal stakeholders.
• A proactive mindset and willingness to challenge convention.
• Strong organisational skills, a commercial mindset and excellent attention to detail

This role sits within Amplifi and reports into the Head of…