Hays is seeking a contract Kotlin Backend Application Developer for a fully remote role. The position requires significant experience in Kotlin backend development, with a focus on Ktor. The role involves designing, building, and optimizing scalable and resilient backend systems.
Key Highlights
Technical Skills Required
Benefits & Perks
Job Description
Fully Remote Kotlin Backend Application Developer
Start Date: December 2025
End Date: 30 June 2026
Type of role: contract
MUST HAVE:
Proficiency in Kotlin Backend Development: at least 5 years of hands-on proven experience (with Ktor 3+ years)
NICE to Have:
additional Java Backend Development experience more than 5 years
Required technical skills:
Strong understanding of:
- object-oriented programming
- design patterns
- exception handling
Mastery of core APIs, such as collections, streams, and concurrency frameworks
System Design and Architecture:
Solid knowledge of software architecture patterns like:
- microservices
- serverless architectures
Ability to design scalable and resilient systems, including databases and APIs
Frameworks and Technologies:
- Ktor at least 3 years
- Spring Boot, Hibernate
- Kotlin Coroutines
- Spring WebFlux
- http4k
Proficiency in:
- cloud services (Microsoft Azure, AWS)
- containerization tools (Docker, Kubernetes)
Experience with
- CI/CD pipelines
- monitoring, and logging tools
Ability to troubleshoot and optimize backend systems
Additional Skills:
- Problem-Solving
- Analytical Thinking
- Collaboration and Communication