Location: Brussels, Belgium
Type: Full-time
Experience Level: Senior (+ 10 years working experience)

About the Role

Semetis is evolving. We are moving beyond the data-and-tech-driven agency model to establish ourselves as a business-first strategic partner. For us, media is not just about transactions—it is about solving complex business challenges, balancing brand-building with performance, and driving measurable impact.

As Strategy Director at Semetis, you will play a pivotal role in shaping this transformation. You will lead the strategic vision, ensuring our clients benefit from marketing science, deep business insights, and integrated media expertise. You will be at the forefront of developing strategies that matter—not just optimizing media spend but helping brands grow, scale, and thrive in today’s evolving landscape.

This is a hands-on, high-impact role where you will drive strategy, innovation, thought leadership, and client growth. You will educate our teams, challenge conventional agency models, and build a strategic department within Semetis.

Key Responsibilities

Shaping Strategy & Business Impact
  • Develop cutting-edge strategies that connect marketing science, media planning, and business growth.
  • Build and own the strategic development process, ensuring seamless integration of research, data, analytics, business, and cultural intelligence ( macro and locally relevant cultural trends and insights).
  • Introduce full-funnel, brand-building media strategies, using principles from Les Binet, Peter Field, and Dr. Grace Kite.
  • Shift client conversations from media execution to business impact, ensuring Semetis is seen as a strategic growth partner.
Thought Leadership & Industry Influence
  • Represent Semetis as a marketing thought leader through public speaking, PR, and industry contributions.
  • Drive high-profile client engagements, ensuring Semetis is recognized for its strategic excellence.
  • Build and validate business-first, marketing-science-driven frameworks that set new industry standards.
Winning Business & Elevating Client Growth
  • Play a key role in winning new business, ensuring Semetis stands out in pitches with clear, business-impactful strategies.
  • Create business value for Semetis’s top-tier clients, delivering strategies that align with brand, growth, and market impact goals.
  • Lead the development of Semetis’s first full-digital brand-building case, demonstrating how media can drive long-term brand equity and performance.
Internal Influence & Team Development
  • Educate and train Semetissians on modern marketing science, ensuring strategic thinking is embedded across all teams.
  • Work cross-functionally with media, creative, analytics, research, and business teams to ensure strategy translates into executional excellence.
  • Act as an internal consultant, helping teams refine approaches to media planning, measurement, and business growth.

What You Bring

  • 10+ years of experience in agency strategy and marketing consulting
  • A deep mastery of marketing science—familiarity with Les Binet, Peter Field, Byron Sharp, and Ehrenberg-Bass principles.
  • Proven ability to build strategy functions within an agency and develop scalable strategic frameworks.
  • A track record of winning pitches, crafting brand strategies, and driving measurable business impact.
  • Hands-on experience with research, audience intelligence, and marketing effectiveness tools (Nielsen, CIM, GWI, MRI, etc.).
  • A contagious passion for the future of media and marketing, with the ability to inspire teams and clients alike.
  • A business-first mindset, with an ability to shift conversations from media execution to broader growth and brand strategy.
  • Exceptional storytelling skills, with the ability to articulate complex strategies in a simple, compelling way.
  • Experience leading cross-functional teams, influencing C-level stakeholders, and delivering high-impact recommendations.

Why Join Semetis?

Semetis is Belgium’s leading digital agency—the largest, most well-known, and highly respected in the industry. Our reputation is built on cutting-edge expertise, a track record of excellence, and an unmatched presence in the Belgian market. Today, we stand at a defining crossroads, ready to take Semetis to the next level.

Our ambition? Evolving from a digital powerhouse into a full-scale media strategy partner. We are expanding beyond digital to offer Total Media Solutions, seamlessly integrating online and offline strategies to become a true business-first advisory agency. This transformation isn’t just our ambition—it’s the natural evolution of modern marketing. Brands need strategic, integrated, and outcome-driven media expertise, and Semetis is uniquely positioned to lead this change.

An Entrepreneurial Role with Real Business Impact

Joining Semetis at this pivotal moment means stepping into an entrepreneurial leadership role where your influence will shape the agency’s future. Unlike traditional agencies bound by rigid structures, Semetis operates with full autonomy over its P&L, giving you direct access to business performance, financials, and strategic decision-making.

As Strategy Director, you won’t just be crafting strategies for clients—you’ll be a key driver in transforming Semetis itself. You’ll work side by side with the leadership team, helping steer the agency’s growth, defining our strategic roadmap, and embedding a new vision of marketing strategy into the DNA of the company.

A Fast-Moving, Young & Curious Culture

Semetis is a 40-person agency, but what sets us apart is our youthful, fast-adapting, and curious mindset. Unlike larger agencies where change is slow and bureaucratic, we embrace transformation at speed. Here, new ideas take flight, and bold moves are encouraged. You’ll have the opportunity to build, test, and scale innovative frameworks with a team that is eager to learn, experiment, and push boundaries.

This is not a typical strategy role—this is your chance to shape the agency of the future, redefining what a modern, strategic media partner should be. If you’re ready to make an impact, challenge the status quo, and build the future of Semetis, we’d love to hear from you.

Application Process:

Thank you for your interest in Semetis!

You want to be one of our tremendous colleagues? It's super easy: send us your CV and motivation letter to This email address is being protected from spambots. You need JavaScript enabled to view it., and we will get back to you shortly.

 

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Semetis | Rue de l'Escaut 122, 1080 Brussels - Belgium

welcome@semetis.com

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