🌐 We are on the mission to build Europe’s leading energy management platform to provide fair, clean energy to everyone. ⚡

We’re a diverse team of 50+ employees, with 46% being female and from 16+ nationalities, and steadily growing. Having raised of over €40 M in total, we are looking for passionate people to join us on our mission! 🚀

🇩🇪 We have a clear mission: We are building Europe’s leading energy management platform to make fair and clean energy accessible to everyone. ⚡

Our team is diverse – we are over 50 people from more than 16 nationalities, with a female share of 46%. And we are continuing to grow!
With over €40 million in funding, we are looking for motivated people to shape the energy future with us. 🚀

About Ostrom

Ostrom is the digital-first green energy provider from Berlin. We make energy simple, transparent, and fair: good prices, an app that really works, and smart features like Smart Charging, dynamic tariffs, and intelligent consumption control. Through our Virtual Power Plant (VPP), we connect thousands of households to a flexible energy system, thus making every home a part of the energy transition. Energy. Simply Better.
We are growing rapidly, are financed by renowned international VCs, and are on the path to profitable growth. Now we are looking for someone in Berlin to take our marketing to the next level.

The Role

As Head of Marketing (m/f/d), you will be responsible for our new customer acquisition and our brand. You will develop the strategy, build the team, and drive growth across all channels. In this senior leadership role, you will take on real responsibility: You will report directly to our founder and CEO, lead the marketing team, and have real budget responsibility.

Your Tasks

• You define and manage Ostrom's marketing strategy across Brand, Performance, Price Comparison Portals, D2D, Social, and CRM

• You are responsible for our Unit Economics with a very clear focus on cross-channel CAC optimization, CAC payback, and LTV/CAC in close cooperation with Finance

• You work closely with our Product and Operations team on new product launches

• You develop and lead our lean and high-performing marketing team

• You drive the introduction of AI tools across marketing and identify the use cases with the greatest leverage (personalization, predictive analytics)

• You remain hands-on and drive core initiatives independently
  

What You Bring

• 5+ years of experience in marketing, with at least 3 years in a leadership role – ideally in a fast-growing startup, scale-up, or a comparable dynamic environment

• You work extremely data-driven, can analyze relevant marketing and business data, visualize it understandably, and derive clear decisions from it

• You are interested in using modern tools, AI, and automation to make marketing smarter and more efficient. Prior knowledge is not a must – we are primarily looking for curiosity, willingness to learn, and interest in new technologies.

• You have scaled B2C consumer brands, ideally in energy, fintech (banking/insurance), or comparable industries

• Strong understanding of Brand and Performance Marketing, with hands-on experience in cross-channel management, optimization, and success measurement

• Very good economic understanding: You think in terms of Unit Economics, margins, and Customer Lifetime Value

• Absolute must: fluent German skills (C1/C2, ideally native level), very good English written and spoken

• Builder mindset: You are comfortable with ambiguity, prioritize clearly, and pragmatically drive things forward

• Clear, confident communication, both written and in person
  

Nice-to-Have

• Experience in the energy sector

• Experience in the startup, scale-up environment

🌐 About Us

We’re Germany’s fastest-growing digital green energy provider and a Certified B Corp™, driving the energy transition by making renewable energy more accessible and inclusive.

How? Through variable tariffs, dynamic pricing, smart EV charging, heat pump and solar optimization, and Germany’s first virtual power plant: NeoGrid™.

At Ostrom, you’ll work in a dynamic, open environment where you can be yourself, take on challenges, and grow both personally and professionally.

🌱Environmental Impact: Each customer who switches to Ostrom on average helps offset 1.5 tons of CO2 emissions per year compared to the average German energy mix.

📈 VSOP: On top of offering a competitive salary you will have access to company shares to ensure you can truly be part of the journey.

👭 Trust-based Team: A truly flat hierarchy and transparent company culture, where everyone’s voice matters.

💪🏽Benefits: An annual learning budget, company pension scheme, company events, discounted USC membership, discounted BVG public transport ticket, e-bike or e-moped, exclusive discounts via FutureBens or monthly vouchers - the choice is yours.

💬 Stay In The Loop: We believe in transparent communication — from weekly town halls and quarterly updates to regular retrospectives. Got feedback or an idea? We’re all ears.

🤝 Work Together, Celebrate Together: We thrive on collaboration. Wins are shared and so are the celebrations from monthly happy hours to team trips and company events.

🌍 Work Your Way: Whether you prefer the office, your home desk, or a sunny spot in Sardinia — you work where you work best.

🚀 Learn By Doing: We grow together with personal development paths, learning budgets, and regular knowledge-sharing sessions. Try things out, learn along the way, and keep moving forward.

🇩🇪 About Us

We are Germany's fastest-growing digital green energy provider with B Corp™ certification – and actively driving the energy transition. Our goal: To make renewable energy accessible and inclusive for everyone.

How? With variable tariffs, dynamic electricity prices, Smart EV Charging, optimization of heat pumps and solar systems, and Germany's first virtual power plant: NeoGrid™.

At Ostrom, you work in an open, dynamic environment where you can be yourself, take on challenges, and continuously develop yourself.

🌱 Sustainability that counts: By switching to Ostrom, you actively support the energy transition. On average, our customers help save 1.5 tons of CO₂ per year compared to the German average electricity mix.

📈 Appreciation that pays off: In addition to an attractive salary, we offer VSOPs – company shares that directly involve you in Ostrom's success.

👭 Team Culture at eye level: At Ostrom, we live flat hierarchies and an open feedback culture. Your opinion matters – from day one.

💪🏽 Benefits: You receive a flexible package with many extras – from an annual training budget, to a company pension scheme, to a subsidized USC membership, a subsidized BVG job ticket or your own e-bike or e-scooter and discount codes via FutureBens. Alternatively, you choose monthly vouchers – you decide what's important to you.

💬 Transparency: Whether in weekly town halls, quarterly updates, or open retrospectives – we believe in clear communication and continuous exchange.

🤝 We celebrate successes together: Teamwork is at the core of what we do – and we celebrate our successes just as much: with regular happy hours, team outings, and unforgettable company events.

🌍 Work your way: Whether in the Berlin office, at home, or remotely under the sun – you work where you are most productive.

🚀 Grow with us: Personal development is not just a buzzword at Ostrom. We support you with learning budgets and space to experiment – so you can continuously develop yourself professionally and personally.