Marketing Manager
Thermosphr is a fast-growing European Climate Tech company combining AI, advanced engineering and energy optimization to make large commercial buildings significantly more efficient. Our AI autopilot connects to existing heating and cooling systems, reducing energy consumption by 20 to 30%.
We work with leading real estate owners and asset managers, with our technology already deployed across around 100 buildings and over 2 million m². We operate across Europe, with entities in France, Germany and Poland.
We're entering a new phase of growth, with ambitious plans to accelerate commercial expansion, scale our organization and broaden our offering.
Our ambition is to make autonomous energy optimization the new standard across European commercial real estate.
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 do1. 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
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
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 basic video tools (Figma, Canva, PowerPoint or equivalent)
Demonstrated experience leveraging AI beyond simple prompting, including content production, research, automation, workflows or agents
Experience coordinating external providers and taking ownership of projects from brief to final delivery
Nice to have: Experience with complex B2B sales, CRM, PR, events, energy or real estate. German is a plus
You don't need to tick every box. We're looking for someone with great judgment, creativity, drive and the ability to figure things out. If you're strong in some areas and eager to learn the others, we'd love to hear from you.
1 short intro call, 1 interview, 1 case study, 1 interview with our CEO