[Hiring] Software Engineer @CoreWillSoft GmbH

Role Description

We are looking for a Software Engineer with strong backend experience in Kotlin/Java and experience in Kotlin Multiplatform / Android development.

• You will work on products used by businesses across Western Europe.
• Our team operates in a scaled agile approach across Europe with a headquarter in Bonn, Germany.
• Responsible for the complete software development lifecycle; including ideation, implementation, and operation of the secure IoT software operating smart buildings and smart homes across the world.

Qualifications

• Proficiency in Kotlin and/or Java for backend development.
• Strong experience with Spring Boot framework.
• Experience with Docker and containerized applications.
• Familiarity with cloud platforms such as AWS, Azure, or Google Cloud.
• Experience in designing and consuming RESTful APIs.
• Knowledge of microservices architecture and patterns.
• Experience with on-premise and cloud-based deployments.
• Proficiency in secure coding practices and understanding of security best practices for backend systems.
• Familiarity with scalability strategies and performance optimization in backend services.
• Knowledge of monitoring and observability tools (e.g., Prometheus, Grafana, ELK).
• Knowledge of cryptography and security.
• Familiarity with CI/CD processes, including GitHub Actions, GitLab CI, or similar tools.
• Experience with version control systems (e.g., Git).
• Experience with database technologies, both relational (e.g., PostgreSQL) and NoSQL (e.g., MongoDB).
• Experience with Kotlin Multiplatform and/or Android development.
• Strong knowledge of Kotlin Coroutines and Flow.
• Experience with Jetpack Compose (or Compose Multiplatform).
• Familiarity with dependency injection frameworks (e.g., Koin).
• Experience with networking libraries such as Ktor.

Requirements

• Experience building desktop applications.
• Experience with Kotlin Multiplatform in production.
• Knowledge of modern Kotlin ecosystem (Coroutines, Flow, Compose, Koin, Ktor).
• Knowledge of additional programming languages.
• Experience with system architecture and distributed systems.
• Understanding of UI/UX design and performance optimization.
• Knowledge of building automation or access control systems.

Benefits

• Meaningful Impact: Build solutions that are used every day by thousands of businesses; your work will directly improve real-world security and connected device experiences.
• Product & Process Ownership: Help shape not only the product, but also how we build and deliver it; your ideas and decisions will have visible impact.
• Industry Influence: Contribute to key security standards and best practices, staying ahead of the curve in a fast-evolving industry.
• Modern Tech Stack & Hardware: Work with the latest hardware and the tools you need to do your best work.
• Time Off & Flexibility: Vacation days, paid sick leave, and public holidays in line with German legislation plus flexibility built around outcomes, not micromanagement.
• Learning & Development Budget: We support continuous growth by covering hard and soft skills courses, trainings, and access to e-learning platforms.
• Coworking Support: Prefer not to work from home every day? We offer coworking compensation so you can choose the environment that fits you best.
• Language Learning Support: Monthly fixed compensation you can use to improve your English or German through the learning format of your choice.
• Strong Team Culture: Open collaboration, a flat structure, and thoughtful onboarding; your voice is heard, and you can make an impact from day one.