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Senior Fullstack Engineer - Custom Solutions

Staffbase - Chemnitz, Sachsen, Germany - In-office - posted 2026-08-03

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Staffbase is an AI-native Employee Experience Platform company, valued as a unicorn ($1B+), with 550+ employees serving 1,500+ customers across 14 million employees globally. The company operates offices in Chemnitz (HQ), New York, Berlin, London, Sydney, Tokyo, Prague, and Minneapolis–St. Paul. You'll join a newly formed Custom Solutions team building extensions and integrations that adapt the Staffbase platform to specific enterprise customer needs. This is a high-ownership role where you'll own solutions end-to-end: collaborating with stakeholders to define use cases, architecting and building across the full stack, testing, and validating with end users. Key responsibilities: - Own custom solution development from technical design through implementation, testing, and release - Partner with customers, consultants, and internal teams to define requirements and validate solutions - Build across the stack using React.js, TypeScript, Node.js, Kotlin, Go, Java, MongoDB, REST APIs, Docker, and Terraform - Mentor mid-level engineers on the growing team and help establish engineering standards and processes - Follow "you build it, you run it" principles with operational ownership The team is newly formed, offering real opportunity to shape working practices, set engineering standards, and grow together. You'll work with skilled professionals in a diverse, inclusive environment that values flexibility, well-being, and collaborative team events. The company is enthusiastic about technology and committed to improving workplace communication at scale.

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