Founding Product Engineer

At A Glance Role: First Founding Product Engineer in Munich Scope: Product, frontend, backend/data systems, LLM agents, and customer work Company: Well-funded, YC-backed startup building the marketing suite for the Agentic Web Work style: Onsite by default, high ownership, truly AI-native Compensation: EUR 85k to EUR 120k base plus 0.

6% to 2. 0% equity-like upside Intro Jochen and I have known each other since 2019. We started this company in 2025 in the energy space. Mid-2025 we sold our tech (home energy management systems for households with EVs, solar and heatpumps) to find a new market.

During that time we first noticed how many consumers were already asking ChatGPT for advice before putting solar panels onto their roof. And our partners were left wondering why their competitor showed up and they didn’t.

Looking deeper at the problem we closed a pilot with one of the largest insurances in the world and 3 months later, we were accepted into YC W26. Today, the GEO market is moving from tracking AI visibility to operationalizing optimization.

Teams no longer just want to know whether they show up in ChatGPT, Gemini, or Perplexity. They are building the workflows to take action every day: define a strategy, create better content, build the right pages, earn the right mentions, and understand what levers actually change how AI systems talk about them.

We believe GEO will be a full marketing discipline. Agents will increasingly shape buying decisions, so companies need to market to humans and agents at the same time.

Sitefire is building the analytics and execution layer for that shift: the place marketing teams go to understand their brand's AI visibility, sentiment, and traffic the agents that execute the actions to win more customers.

Under the hood, this means working with large, fast-growing datasets (~50M+ rows) and turning them into signal for our agents. The Role We are hiring our first engineer in Munich: a Founding Product Engineer who can own full product f