Senior Full Stack Engineer

• We’re looking for an experienced Senior Fullstack Engineer to join a newly formed team at Staffbase that builds custom solutions — extending the functionality and capabilities of our award-winning employee communications platform to meet real customer needs
• You’ll own solutions from beginning to end: shaping use cases together with stakeholders, building them across the stack, and validating them with the people who use them
• You’ll also help bring structure to a growing team of mid-level engineers and mentor them along the way. We’re looking for empathetic, motivated team players who are driven by ownership and growth.
• As part of our tech stack, we use:
  React.js, Type Script, JavaScript, Node.js, Kotlin, Go, Java, MongoDB, REST APIs & SDKs, Docker, Terraform, Selenium and Cypress, to name a few
• You’ll join a newly formed team dedicated to building custom solutions that extend the Staffbase platform for our enterprise customers
• We turn specific customer needs into reliable, scalable extensions — widgets, plugins, and integrations — that make our product work exactly the way each customer needs it to
• Because the team is new, there’s real room to shape how we work: to set engineering standards, bring structure to our processes, and grow together. That’s where you come in
• Own the development of custom solutions end-to-end — from technical design through implementation, testing, and release
• Partner with stakeholders (customers, consultants, and internal teams) to define and detail use cases before development, then validate solutions and gather feedback afterward
• Build across the stack: customer-facing UI in React and Type Script, backend services, and integrations with Staffbase and third‑party APIs
• Mentor mid‑level engineers and help bring structure, engineering standards, and good practices to a newly formed team
• Work in a cross-functional, agile setup and produce high‑quality, well‑tested code
• Give and receive valuable feedback in our code review process, and continuously learn and share knowledge with your peers
• Work iteratively — pushing code frequently, keeping a healthy CI/CD pipeline, and automating where it helps

You understand and appreciate diversity and inclusivity in the workplace

Comfort working directly with stakeholders — you can translate business needs into technical solutions and validate them afterward

Experience mentoring or guiding less‑experienced developers, and a knack for bringing structure to how a team works

Strong focus on quality, clean code, testing, and continuous learning

Strong frontend skills with React.js, Type Script, and JavaScript, paired with solid backend experience (e.g. Kotlin, Java, or Node.js)

A self‑starter who works well both independently and as part of a team

Solid professional experience (typically 5+ years) as a fullstack developer, including working within engineering teams and owning solutions from concept to delivery

Confidence working with REST APIs and SDKs, and integrating with external systems

Fluent written and spoken English and German — both are required, as you’ll work closely with German‑speaking stakeholders and customers in the region

Experience with Go, MongoDB, Docker, Kubernetes, Git Hub Actions, Terraform, Prometheus or Grafana

A background in professional services, consulting, or building custom, customer‑facing solutions

Enterprise integration concepts such as SSO, SAML, OIDC, or SCIMA good understanding of REST and microservices architecture