Full-Stack Growth Engineer
Vor 3 Tagen
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 41% 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
Wir haben eine klare Mission: Wir bauen Europas führende Plattform für Energiemanagement, um faire und saubere Energie für alle zugänglich zu machen.
Unser Team ist vielfältig – wir sind über 50 Personen aus mehr als 16 Nationalitäten, mit einem Frauenanteil von 41 %. Und wir wachsen weiter
Mit über 40 Mio. € an Finanzierung suchen wir nach motivierten Menschen, die gemeinsam mit uns die Energiezukunft gestalten wollen.
We're looking for a Full-Stack Growth Engineer (with strong marketing enthusiasm) who can move fast, ship experiments, and unblock Marketing on anything that touches the product — frontend, mobile, or backend.
You'll work as a TypeScript engineer across React, React Native, and NestJS, implementing changes that directly impact conversion, activation, and growth.
Interviews only start on January 2026.
What you'll be keeping busy with- Implement and iterate on the web and mobile flows (React / React Native).
- Improve conversion by fixing UX logic issues, price displays, funnel drop-offs, and other blockers.
- Integrate SDKs/APIs based on vendor documentation (Amplitude, Adjust, Intercom, etc.).
- Help run A/B tests, experiments, and feature flags end-to-end.
- Use AI coding tools (Cursor, Claude Code, etc.) to move faster —
not a vibe coder, but an engineer willing to yield the AI magic to their powers.
- Set up and maintain tracking (GTM — nice to have, not required).
- 3+ years as a full-stack Software Engineer.
- Strong with TypeScript.
- Experience with React and/or React Native.
- Experience with / NestJS.
- Good SQL knowledge.
- Solid understanding of APIs, SDK integrations, and Webhooks.
- Experience with A/B testing or building growth/product experiments.
- Strong communication in English.
- Webflow experience (especially custom JS embeds).
- Experience working with marketing or growth teams.
- Experience with or other automation tools.
- German language skills.
- TestGorilla Assessment (early January)
A short online assessment to help us understand your skills and working style. - Technical Interview with our Engineering Team
A conversation focused on your technical abilities, problem-solving approach, and practical experience. - Interview with our Head of Marketing / Product Owner
This round explores cross-functional collaboration, communication, and how you work with different teams. - Co-Founder Interview
A final conversation to discuss alignment, culture, ownership, and your impact on Ostrom as a whole.
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.
Relocation package: We won't let distance get in the way, we offer visa and relocation support.
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 gym membership, public transport ticket, e-bike or e-moped, 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.
Über UnsWir sind der am schnellsten wachsende digitale Ökostromanbieter mit B Corp Zertifizierung in Deutschland – und treiben die Energiewende aktiv voran. Unser Ziel: Erneuerbare Energie für alle zugänglich und inklusiv machen.
Wie? Mit variablen Tarifen, dynamischem Strompreis, Smart EV Charging, Optimierung von Wärmepumpen und Solaranlagen sowie Deutschlands erstem virtuellen Kraftwerk: NeoGrid.
Bei Ostrom arbeitest du in einem offenen, dynamischen Umfeld, in dem du du selbst sein kannst, Herausforderungen annimmst und dich kontinuierlich weiterentwickelst.
Nachhaltigkeit, die zählt: Mit deinem Wechsel zu Ostrom unterstützt du aktiv die Energiewende. Unsere Kund*innen helfen im Schnitt, jährlich 1,5 Tonnen CO₂ gegenüber dem deutschen Durchschnittsstrommix einzusparen.
Wertschätzung, die sich auszahlt: Neben einem attraktiven Gehalt erhältst du bei uns VSOPs – Unternehmensanteile, mit denen du direkt am Erfolg von Ostrom beteiligt bist.
Relocation package: Entfernung ist für uns kein Hindernis. Wir unterstützen dich mit einem umfassenden Relocation- und Visapaket beim Umzug nach Deutschland.
Teamkultur auf Augenhöhe: Bei Ostrom leben wir flache Hierarchien und eine offene Feedbackkultur. Deine Meinung zählt – vom ersten Tag an.
Benefits: Du erhältst ein flexibles Paket mit vielen Extras – von einem jährlichen Weiterbildungsbudget, über eine betriebliche Altersvorsorge, bis hin zu vergünstigten Fitnessstudio-Mitgliedschaften, einem Jobticket oder deinem eigenen E-Bike bzw. E-Roller. Alternativ wählst du monatliche Gutscheine oder FutureBens – du entscheidest, was dir wichtig ist.
Transparenz: Ob in wöchentlichen Townhalls, vierteljährlichen Updates oder offenen Retrospektiven – wir glauben an klare Kommunikation und kontinuierlichen Austausch.
Erfolge feiern wir gemeinsam: Teamarbeit steht bei uns im Mittelpunkt – und genauso feiern wir auch unsere Erfolge: mit regelmäßigen Happy Hours, Team-Ausflügen und unvergesslichen Company Events.
Work you way: Ob im Berliner Büro, im Homeoffice oder remote unter der Sonne – bei uns arbeitest du dort, wo du am produktivsten bist.
Wachse mit uns: Persönliche Entwicklung ist bei Ostrom keine Floskel. Wir unterstützen dich mit Lernbudgets und Raum zum Ausprobieren – damit du dich fachlich und persönlich kontinuierlich weiterentwickeln kannst.
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