Marketing Associate

Everox; Rotterdam; Hybrid; EUR 45,000 - 55,000; Full time

Benefits offered by this job

ESOP

Pension with Zwitserleven

27 days holiday

One-year contract 32-40 hours per week

NS Business Card

Training and development

Impactful role

Job summary

everox in Rotterdam is seeking a Marketing Associate to join our dynamic, international team. You will be the right hand of the Marketing Manager, turning ideas into texts, visuals, and campaigns, while keeping the everox brand sharp and authentic.

Based at SubZero, you will split time between writing, design, and events, collaborating with engineers, leadership, and agencies. The role is broad, growth-focused, and starts January 1, 2027, with a path toward a permanent contract.

Qualifications

• Degree in marketing, communications, journalism, design or related field.
• 2+ years of experience in content marketing.
• Strong written and spoken English; Dutch is a plus.
• Knowledge of SEO and GEO/AI-driven search.
• Solid background in graphic design with Adobe CC (InDesign, Illustrator, Photoshop).
• Well organized and able to handle day-to-day administrative tasks.
• Ability to write press releases, sales copy and marketing content.

Responsibilities

• Write LinkedIn posts for the company page and leadership profiles, plus blog posts and newsletters.
• Translate technical input into clear stories for business, technical and investor audiences.
• Create social media visuals, presentations, brochures, datasheets and event materials in Adobe CC.
• Maintain brand voice and templates across channels, including AI-assisted work.
• Develop video concepts for LinkedIn/YouTube; guide partners or shoot/edit videos.
• Brief and manage design, web and translation agencies.
• Support SEO and GEO to improve search presence and AI answers.
• Support employer branding with careers content and recruiting events.
• Develop and manage HubSpot for marketing: emails, workflows, landing pages, forms and leads.

Skills

Content marketing

Copywriting

Graphic design

SEO

Project management

AI tools

English communication

Education

Marketing degree

Tools

Adobe Creative Cloud

HubSpot

Premiere Pro

Job description

Ready to tell the story of circular concrete?

Every year, the world produces around 4 billion tons of cement, accounting for 8% of global CO₂ emissions. At the same time, 3 billion tons of concrete waste are downcycled or discarded.

everox transforms waste concrete into high-quality drop-in substitutes for cement, aggregates and sand. Our mission: reducing global CO₂ emissions by 2% by phasing out virgin materials in concrete through our patented upcycling process.

About everox

We are a dynamic, diverse and international team located at SubZero, a hub for Greentech start-ups in the Port of Rotterdam, and we are moving from pilot-scale operations towards industrial production.

Our first commercial facility in ’s-Gravendeel is the next major step. Next on the roadmap are a second flagship plant abroad and modular product lines that bring our technology to customers in containerised form. Every one of these milestones is a story that customers, partners, investors and future colleagues need to hear, told clearly and consistently, and that is where this role comes in.

About the job

As Marketing Associate, you are the right hand of our Marketing Manager and our go-to-person for every marketing activity at everox. Content creation is our biggest bottleneck right now, even with AI tools. We need someone who turns ideas into strong texts, visuals and campaigns, and keeps the everox brand sharp and authentic while doing it. Overall, you will be playing a big role in getting our brand out there and making sure people know about us!

Your manager is based abroad, so you run day-to-day marketing locally and take ownership without waiting for direction. This is a broad, generalist role: you write one day, design the next and organise an event the day after. It is a mix of creative and admin tasks and as the company grows, you pick up new responsibilities along the way.

How you'll work

You work closely with our engineers, leadership and plants, and you steer external agencies, video partners and translation agencies. We set the concept; you make sure our partners deliver it professionally.

Your base is our office at SubZero in Rotterdam, where you work three days a week. The intended start date is 1 January 2027.

Responsibilities

• Write LinkedIn posts for the company page and for leadership profiles such as our CEO’s, as well as blog posts, website copy, press releases and external newsletters.
• Translate technical input from our engineers into clear stories for business, technical and investor audiences.
• Create social media visuals, presentations, brochures, datasheets, flyers and event materials in Adobe Creative Cloud, including content for our future international plants.
• Keep our templates in line with the brand guide, and keep everox’s voice and visual identity consistent and authentic across every channel, also when you use AI tools to work faster.
• Develop video concepts for LinkedIn and YouTube, from plant updates to short explainers and team stories, and guide the partners who produce them, or plan, film and edit short videos yourself.
• Brief and manage design, web and translation agencies.
• Support SEO and GEO, so everox is found in search engines and in AI-generated answers.
• Support employer branding with careers content, recruitment campaigns and our presence at university and career events.
• Develop and manage HubSpot for marketing: email campaigns, workflows, landing pages, forms and lead nurturing. Track campaign performance and report results to the Marketing Manager.
• Keep an overview of trade shows and conferences, advise which are worth attending, and organise our presence there and at our own events and site visits, including communication before, during and after.
  

About you

We are looking for a content marketer who writes as easily as they design, and who prefers a broad role over a narrow specialism. You switch easily between creative work, data and projects, and you move things forward on your own without daily direction. You use AI tools smartly, but know that authentic content still needs a human eye. You have a real interest in technology and in how industries like construction change, and you want to grow with a scaling start-up.

• A degree in marketing, communications, journalism, design or a related field.
• At least 2 years of experience in content marketing. Experience in a start-up, a tech company or an agency is a plus.
• You're a great communicator (English, Dutch is a plus) both in writing and speaking and you pay attention to the details that matter.
• Knowledge of SEO and an interest in GEO and AI-driven search.
• A solid background in graphic design with Adobe Creative Cloud (InDesign, Illustrator, Photoshop), for social media, print, presentations and websites.
• You're well organized and capable of handling day-to-day administrative tasks.
• You take initiative to see where and how you can support your team.
• You can write press releases, sales copy and marketing content for distribution across social media, websites and other channels.

Nice-to-haves

• Hands-on experience with HubSpot or a similar marketing automation tool.
• Experience creating or editing video for social media (e.g. Premiere Pro).
• Experience briefing and guiding external agencies or production partners.

What we offer

• Competitive compensation based on the market, your experience and qualifications (€45,000-€55,000 gross per year including holiday allowance, based on 40 hours).
• Employee ownership through our ESOP and a company pension plan at Zwitserleven.
• 27 days of annual holiday leave.
• A one-year contract for 32-40 hours per week, with the intention to extend to a permanent contract.
• An NS Business Card.
• Training and development, including vendor training where relevant.
• An impactful position in a fast-growing, mission-driven scale-up.

Why join us?

Join a diverse team committed to sustainability and making a real impact on CO₂ reduction.

Our flat hierarchy gives you ownership of your work and room to grow, and the chance to shape how the world hears about circular concrete.
Ready to tell the everox story?