Marketing Manager

The opportunity

We have an outstanding technology, proven results and some of Europe’s leading real estate companies as customers. Now it’s time for our market visibility to catch up with our achievements.

We’re looking for an ambitious, creative and entrepreneurial Marketing Manager to help establish Thermosphr as the European reference in autonomous energy optimization.

Working directly with our CEO, you’ll have significant ownership over our marketing strategy and execution, with the freedom to experiment, challenge conventions and make a real impact on our growth.

We want someone who thinks big, moves fast and gets things done.

What you’ll do

1. Own our brand and empower Sales

Make everything we produce unmistakably Thermosphr.

• Own our brand identity, positioning and messaging. Drive our brand refresh and ensure consistency across all communications

• Build and maintain an outstanding library of sales materials: pitch decks, presentations, solution sheets, proposals and tender assets

• Work closely with Sales to support complex deals and expand strategic accounts with compelling, tailored content

2. Turn our results into powerful stories

We have plenty to show. Make the market hear about it.

• Transform customer successes, energy savings data and technical expertise into case studies, testimonials, articles and videos

• Own content production end-to-end, from concept and writing to coordinating clients, creatives and external providers

• Develop our editorial presence through LinkedIn, newsletters, thought leadership and PR, including supporting our founders and experts

3. Put Thermosphr at the center of our industry

Build relationships, create memorable experiences and make us impossible to ignore.

• Lead our presence at major industry trade shows, from preparation and booth design to communications and follow-up

• Organize our own client and prospect events: roundtables, breakfasts, site visits and other creative formats

• Own the details: identify speakers, build industry relationships, manage invitations, find venues, coordinate logistics and make sure the right people show up

4. Build a lean, high-performing marketing function

Great marketing doesn’t require a huge team. It requires smart execution.

• Prioritize initiatives based on business impact, working closely with Sales, Operations and leadership

• Leverage AI, automation and modern tools to produce more, faster and better, with minimal resources

• Manage external partners when valuable, while remaining fully capable of handling smaller tasks, adjustments and urgent requests yourself

• Track results, learn from experience and continuously improve our marketing effectiveness

Who you are

We’re looking for someone smart, creative, ambitious and relentlessly hands‑on, with excellent judgment and a genuine appetite for getting things done.

• You’re a thinker and a doer. You understand the big picture, prioritize effectively and turn ideas into tangible results

• You’re versatile and resourceful. Writing, design, presentations, basic video editing, event logistics: you know your way around the tools and aren’t afraid to do things yourself.

• You have outstanding communication skills. Excellent writing, great taste, sharp messaging and the ability to make complex ideas compelling

• You’re commercially minded. You understand customers, business priorities and how marketing contributes to revenue

• You’re genuinely AI-native. You actively experiment with AI tools, agents and automated workflows to multiply your productivity, not just generate occasional content

• You take ownership. Autonomous, proactive and confident enough to challenge others, while remaining collaborative and open-minded

Why join us?

• Shape a European tech brand around a proven product, outstanding clients and ambitious growth plans

• Have real ownership, with direct access to the CEO and visible impact on the business.

• Build and experiment in a fast-moving startup where good ideas can become reality quickly

• Work with talented, ambitious people who care about technology, results and making a difference

What you bring: 5+ years of hands‑on B2B marketing experience, ideally in a startup or scale‑up. Excellent French and fluent English, with outstanding writing skills Practical proficiency with design, presentation and