Sempi is a Berlin-based startup transforming the second-hand market by offering a hassle-free, concierge-style service that manages the entire selling process for users. We handle everything from listing items on multiple platforms to customer interactions, making it effortless for people to sell their preloved items online. Backed by investors like Antler and the Climate X accelerator, we're poised for significant growth.

If you're excited about our mission and want to join us on this journey, we'd love to hear from you.

Tech positions

Full-stack software engineer

Join as our first engineering hire! You'll work directly with our technical co-founder to build and scale our platform, with significant input into our technical decisions and architecture.

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Marketplace Integrations Engineer (freelance)

This role focuses specifically on building robust, maintainable connections with various marketplace platforms, including those with limited or no official API documentation.

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Software Engineering Intern

Transition from learning to building real products! You'll work directly with our engineering team on actual features that impact our users. This isn't a coffee-running internship — you'll be treated as a fellow engineer who's here to learn and contribute.

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