Assistant Brand Manager, Benelux

Join this dynamic team focused on delivering better nutrition for every step of life’s journey

The Opportunity

Optimum Nutrition, the world’s No.1 sports nutrition brand, is seeking a hands‑on, results‑driven and creative Assistant Brand Manager to support our trade marketing, social media, and e‑commerce initiatives across Belgium and the Netherlands.

In this role, you’ll work closely with the Senior Brand Manager to execute campaigns that strengthen brand visibility in-store and online, ensuring seamless alignment between marketing and sales. You’ll help deliver impactful retail activations, support social media execution, manage influencer collaborations, and coordinate e‑commerce activities with key partners.

This is a great opportunity to grow within a fast‑paced, performance‑oriented environment, contributing directly to Optimum Nutrition’s success in the Benelux region.

Responsibilities Marketing & Social Media

• Assist in developing localized content for digital, social, and retail channels.
• Support day‑to‑day social media execution and community engagement.
• Work with agencies to deliver creative assets and collaborate with influencers to produce on‑brand UGC.
• Monitor and report on social media performance.
• Lead the website launch from a Marketing perspective, aligning closely with Sales and the DTC team to ensure full integration with our campaigns and drive stronger online conversion.
• Coordinate banners, and product launches across key retail, e‑com partners and our own website.
• Support sales teams with trade marketing tools and assets to all ecom distributors, that are aligned with our brand campaigns

Retail Trade & Brand Activation

• Support execution of trade and brand strategies across Belgium and the Netherlands, aligned with global guidelines.
• Deliver in‑store visibility plans and shopper activations tailored to each key retailer.
• Track market trends and competitor activity to identify growth opportunities.
• Events & Partnerships
• Support planning and execution of events, retail activations, and sponsorships.
• Collaborate with retailers and partners to maximize brand exposure.

The Skills you will bring to the team

• Bachelor’s degree in Marketing, Business, or related field.
• 1–3 years’ experience in brand, trade, or marketing roles, ideally in FMCG or sports nutrition.
• Experience in the Dutch market required; Belgian market experience is a plus.
• Proficient in social media, CRM, and analytics tools.
• Strong Excel and PowerPoint skills.
• Analytical Skills with the ability to analyse data and campaign results to drive decisions.
• Use consumer insights to refine marketing strategies
• Fluent in Dutch (required); French and English (strong advantage).
• Organized, proactive, and collaborative with strong multitasking skills.
• Passionate about sports, health, and performance nutrition.

If you think you have what it takes, but don't necessarily meet every single point on the job description, please apply!

Where and how you will work

The opportunity will be based in Amsterdam with hybrid working arrangements available through our Smart working model which allows you a greater choice in how you work and live, giving you a better work‑life balance.

What we would like to offer you!

The opportunity to develop your career on a global stage, continuous learning through an on‑Demand learning platform, and a competitive compensation package including staff discounts, generous family leave policy, health & dental plan, competitive salary.

About Glanbia

The Glanbia Group comprises three divisions: Glanbia Performance Nutrition, Glanbia Nutritional's, and Joint Ventures. Collectively and with our partners we offer an incredible breadth of expertise in nutrition. We employ a team of 6,000 people, work with global food and beverage companies, and sell our award‑winning and market‑leading products in 130 countries worldwide.

At Glanbia, we celebrate diversity, because we know that our individual strengths make us stronger together. We welcome and encourage interest from a variety of candidates, we will give your application consideration, without regard to race, colour, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status.

At Glanbia, our culture celebrates individuality, knowing that together we are more.

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