You’ll work directly with the founders and take ownership of major parts of the product from idea to production.

You will:

• Build and ship core product experiences end-to-end across mobile, backend and data.

• Turn ambiguous product problems and user needs into simple, pragmatic technical solutions.

• Help define technical direction and make decisions around architecture, tools and frameworks.

• Own features from initial idea through implementation, release and iteration.

• Integrate external services and improve reliability and performance as the product grows.

• Use AI development tools extensively to increase speed without lowering the bar for engineering quality.

• Help establish the technical foundations and engineering standards we need as Treehouze grows.

We care much more about what you have built and owned than titles, degrees or a specific number of years of experience.

You could be a strong fit if you:

• Have shipped real software products and owned meaningful projects end-to-end.

• Are a strong generalist who can move comfortably across frontend, backend and product problems.

• Have strong engineering fundamentals across APIs, databases and modern software architecture.

• Think like a product engineer: you care about users and outcomes as much as the code itself.

• Can translate ambiguity into technical decisions and move quickly without waiting for detailed specifications.

• Make pragmatic trade-offs and know when something needs to be robust versus simply needs to work.

• Use modern AI coding tools as part of your everyday workflow and understand their limitations.

• Communicate clearly, challenge assumptions and take responsibility for the outcome.

Experience with consumer or mobile products, early-stage startups, or having built something of your own is a strong plus.

English fluency is required. German is useful, but not required.

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