Senior Kotlin & Java Developer

Borgbjerg consulting

Oslo
Permanent
On-site
NOK950,000 - NOK1,200,000/year
Kotlin & Java Backend DevelopmentSoftware Architecture & Design PatternsCloud Platforms & Containerization

Role Overview

We are seeking an experienced and passionate Senior Kotlin & Java Developer to join our innovative engineering team. In this role, you will be a key contributor to the design, development, and maintenance of our core backend services. You will leverage your deep expertise in Kotlin and Java to build robust, scalable, and high-performance applications that power our platform. This is an excellent opportunity for a seasoned developer who is a true Kotlin enthusiast and wants to make a significant impact in a collaborative, forward-thinking environment.

Key Responsibilities

  • Design, build, and maintain efficient, reusable, and reliable backend services using Kotlin and Java.
  • Collaborate with cross-functional teams, including product managers and other engineers, to define, design, and ship new features.
  • Write clean, maintainable, and well-tested code, and participate in peer code reviews to ensure high-quality standards.
  • Mentor junior developers and contribute to improving our engineering practices, standards, and tooling.
  • Troubleshoot, debug, and upgrade existing systems to ensure optimal performance and security.

Required Skills & Qualifications

  • BSc or higher in a STEM field (Science, Technology, Engineering, or Mathematics).
  • Minimum of 5 years of professional software development experience with a strong focus on backend systems.
  • Expert-level proficiency in Kotlin and a strong foundation in Java.
  • Proven experience with modern backend frameworks (e.g., Spring Boot, Ktor).
  • Solid understanding of software architecture, design patterns, and data structures.

Nice-to-Have Qualifications

  • Experience with cloud platforms (AWS, GCP, or Azure).
  • Familiarity with containerization and orchestration technologies (Docker, Kubernetes).
  • Knowledge of microservices architecture and best practices.
  • Experience with CI/CD pipelines and automated testing.
Senior Kotlin & Java Developer at Borgbjerg consulting | Alfa Jobs