Head of Marketing (m/w/d)

Head Of Marketing (M/W/D)

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 and thus make every home a part of the energy transition. Energy. Simply Better. We grow fast, are financed by renowned international VCs, and are on the way to profitable growth. Now we are looking for someone who can take our marketing to the next level.
As Head of Marketing (m/w/d) you will be responsible for our new customer acquisition and our brand. You will develop the strategy, build up the team, and drive growth through all channels. In this senior leadership role you will take 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 steer 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-performance marketing team
You drive the introduction of AI tools throughout marketing and find the use cases with the greatest leverage (personalization, predictive analytics)
You stay hands-on and drive key initiatives independently
What You Bring

7+ years of experience in marketing, with at least 3 in a leadership role in a fast-growing start-up, scale-up or a comparable dynamic environment
You work extremely data-driven, can analyze relevant marketing and business data, visualize them clearly and derive clear decisions from them
You use modern tools, AI-supported workflows and automation to make marketing processes more efficient and to build scalable systems
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 control, optimization and measurement of success
Very good economic understanding: You think in unit economics, margins and customer lifetime value
Absolute must: German at native level, very good English in speech and writing
Builder mindset: You cope well with ambiguity, prioritize clearly and pragmatically drive things forward
Clear, confident communication, written and in person
Nice-to-Have

Experience in the energy sector