Marketing Generalist

Join AQUABATTERY today, a pioneering climate tech startup with a mission to commercialise a affordable, safe and sustainable long duration energy storage (LDES) based on saltwater. Our innovative flow battery technology offers an LDES solution without relying on critical or toxic raw materials.

With fresh funding secured and our first commercial product on the horizon, this is an exciting time to become part of our growing team and contribute to building a cleaner, more resilient energy future.

As our first dedicated Marketing Generalist, you'll build AQUABATTERY's marketing engine from the ground up. Reporting to the Chief Commercial Officer (CCO), your mission is to turn marketing into a genuine lead-generation tool that actively supports our sales efforts. You'll own our brand, content, website, events and digital presence, and you'll do it the start-up way: creatively, resourcefully and with heavy use of AI to punch well above our weight.

What you’ll be doing

• Own and build our brand across all channels including website, content, events, digital and media

• Build a marketing engine that generates high-quality leads and supports the sales pipeline

• Create compelling, on-brand content across channels — web, social, email and other channels

• Work with and manage external agencies to deliver our marketing strategy

• Define and execute content and channel strategy, including priorities, campaigns and publishing cadence

• Measure and optimise marketing performance based on lead generation, conversion and business impact

• Leverage AI tools to maximise marketing output and efficiency with a lean team

• Plan and deliver events, conferences and industry engagement activities

• Support employer branding and recruitment through marketing campaigns and content

• Set the overall marketing strategy and manage the marketing budget

• Own external communications to build and protect our brand, through multiple tools like press releases and media appearances

• Around 5 years of marketing experience, ideally within the energy transition or cleantech sector

• A proven B2B marketing track record — you know how to generate qualified leads, not just impressions

• A true generalist who moves easily between strategy and hands-on execution across brand, content, digital and events

• Demonstrated ability to achieve outsized results on a limited budget

• Highly experienced and fluent with AI tools for content creation, analytics and productivity

• Start-up or scale-up experience; comfortable being a team of one and building from scratch

• A creative eye and the ability to produce compelling, brand-aligned content

• Excellent command of English and preferably Dutch

Why AQUABATTERY?

• The opportunity to provide vital support to the energy transition at our state-of-the-art ETCA facility
• A collaborative, multicultural work environment where practical observations and technical insights are valued
• A structured, performance-driven culture that supports professional growth and technical skill development.
• Competitive salary plus Stock Appreciation Rights (SARs)
• Work-life balance, including 25 vacation days and flexible working arrangements
• Green pension scheme (50% employer contribution) and collective health insurance discount
• Company bike for commuting
• Regular team events and opportunities to shape the future of clean energy

Excited to join? Get in touch with us today!