(Senior) Product Engineer (Backend)

Accountabilities

• • Build and maintain reliable, scalable backend services and product features using Kotlin or Java and modern web frameworks.
  • Take ownership of features from initial user problem discovery through development, rollout, and evaluation of their impact.
  • Work closely with product managers, designers, and engineers to translate ideas and user needs into high-quality shipped experiences.
  • Contribute beyond the backend when needed, including web, mobile, infrastructure, and other parts of the product stack.
  • Use AI coding assistants to navigate unfamiliar codebases, accelerate development, prototype solutions, and deliver well-structured changes outside your primary specialization.
  • Explore user problems through prototypes, instrumentation, experimentation, and collaboration with product or customer-facing teams.
  • Help evolve engineering practices toward more end-to-end, product-minded ownership and AI-enabled development.
  • Contribute to reliable deployment and infrastructure practices, with opportunities to work with Kubernetes, Helm, messaging systems, and related technologies.

  Requirements:

  • Professional experience in backend software engineering, with a strong foundation in Kotlin or Java and experience with frameworks such as Micronaut or Spring.
  • Experience developing SaaS products, ideally within an Agile and cross-functional product environment.
  • A backend specialization combined with a willingness and ability to contribute to frontend, mobile, infrastructure, or other areas when required.
  • Familiarity with AI-powered coding tools such as Cursor, Claude Code, GitHub Copilot, or similar tools, or a strong willingness to incorporate them into your workflow.
  • Strong product mindset and ownership mentality, with a focus on understanding user problems and delivering measurable outcomes rather than simply completing technical tickets.
  • Ability to work effectively with product managers, designers, engineers, and other stakeholders.
  • Strong curiosity, adaptability, engineering judgment, and willingness to learn new technologies and ways of working.
  • Experience working with designers, mockups, or prototypes is a plus.
  • Experience with instrumentation, experimentation, A/B testing, Grafana, or Mixpanel is a plus.
  • Knowledge of Kubernetes and Helm is a plus.
  • Experience with PostgreSQL and messaging systems such as RabbitMQ or Apache Kafka is a plus.
  • Candidates at different experience levels are welcome, including engineers early in their careers who have gained relevant experience alongside their studies.

  Benefits:

  • Remote-first working model with flexibility to work from home.
  • Opportunities for occasional in-person collaboration through team events, workshops, and meetings in Berlin or Stuttgart, with advance notice.
  • Flexibility to work remotely from other locations within the European Union.
  • E-Gym-Wellpass membership covered by the employer.
  • Job bike leasing.
  • Relaxed, collaborative environment with highly motivated and committed colleagues.
  • Strong opportunity to shape products and contribute directly to the growth of a young technology organization.
  • Regular team events and culture days focused on collaboration and connection.
  • Supportive environment with tools, practices, and colleagues that encourage continuous technical and product development.
  • Opportunity to deepen backend expertise while growing into a product-minded, AI-enabled engineering role.