Job VC
Fullstack Software Engineer (Java/Kotlin + Frontend)
Technologies
Description
CoreWillSoft GmbH is a German-based company working on secure IoT software solutions and services. The mission of CoreWillSoft is to help businesses protect their assets, employees, and data by providing advanced software solutions and services in the security industry.
We are looking for a
Full-Stack Software Engineer
with strong backend experience in
Kotlin/Java
and solid
Frontend
expertise.
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. It is 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.
Join us to work on cool and innovative projects involving high-security hardware in a nice international and creative environment that allows you to learn and advance.
Location:
Bonn, Germany
Remote
We offer:
Great customer impact: the solutions you deliver will be used by thousands of large and small businesses
Ability to shape the product, working, and delivery process
Great team spirit and Team Events
Agile and innovative environment
Cutting-edge technologies
Working on the latest Hardware
Convenient office or co-working, depending on your location.
Your skills:
Backend:
Proficiency in Kotlin and/or Java for backend development
Strong experience with the 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 bestKo 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).
Frontend
:
Strong experience with React.js or Angular, or Vue
Solid knowledge of TypeScript / JavaScript, HTML5, CSS3
Experience with modern tools (Vite, Webpack, npm, etc.)
Understanding of state management (e.g., Redux).
Nice to have:
Experience building
desktop applications
Experience with
Kotlin Multiplatform in production
Knowledge of the 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
We are looking for a
Full-Stack Software Engineer
with strong backend experience in
Kotlin/Java
and solid
Frontend
expertise.
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. It is 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.
Join us to work on cool and innovative projects involving high-security hardware in a nice international and creative environment that allows you to learn and advance.
Location:
Bonn, Germany
Remote
We offer:
Great customer impact: the solutions you deliver will be used by thousands of large and small businesses
Ability to shape the product, working, and delivery process
Great team spirit and Team Events
Agile and innovative environment
Cutting-edge technologies
Working on the latest Hardware
Convenient office or co-working, depending on your location.
Your skills:
Backend:
Proficiency in Kotlin and/or Java for backend development
Strong experience with the 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 bestKo 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).
Frontend
:
Strong experience with React.js or Angular, or Vue
Solid knowledge of TypeScript / JavaScript, HTML5, CSS3
Experience with modern tools (Vite, Webpack, npm, etc.)
Understanding of state management (e.g., Redux).
Nice to have:
Experience building
desktop applications
Experience with
Kotlin Multiplatform in production
Knowledge of the 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