Assignment Description:

Responsibilities:

• Participate in the further development of the developed proof of concept

• Drive and support migration from Java 8-based code

• Create and adapt OpenRewrite recipes

• Act as a technical mentor and support for development teams

• Work with system development, code analysis and code migration

• Manage containerization and platform adaptation

• Work with DevOps, CI/CD, tests, architecture and application analysis

• Participate in both development and management depending on client needs

SKA requirements

• Have many years of experience working as a system developer with programming in Java on a distributed service-oriented platform and have a very deep understanding and knowledge and be very driven in the area.

• Have worked with code migration between Java versions and have a very deep knowledge and understanding of it.

• Have deep knowledge and understanding of backward compatibility and breaking changes in Java.

• Be able to write and speak fluent Swedish.

• Have worked with system development in container technology (Kubernetes) for at least 3+ years and have a good understanding and knowledge of the framework.

REQUIRED requirements:

• Have worked with the IBM WAS framework Java 8

• Have worked with Openliberty Java 8

• Have worked with OpenRewrite and performed migrations between different Java frameworks.

• Have extensive experience of working with Java codebase in versions 6 and 8 and have deep knowledge and understanding of each version, including knowledge of features in each version and improvements associated with Java 8 compared to Java 6.

• Have worked with system development in Red Hat Openshift and with the tools ArgoCD and Helm and have good knowledge and understanding of the platform.

• Have worked with various container technologies including Podman container management, Docker and built and optimized container images.

• Have worked with build tools such as Maven, for build and dependency management, including management of dependencies and versions.

• Have worked with build tools such as Gradle.

• Have worked with DevOps and have an understanding of continuous integration and deployment (CI/CD).

• Have worked in GIT with Version Management and have a good understanding of and knowledge of branching strategies.

• Have worked with unit integration and regression tests linked to Java-developed code.

• Have worked with performance tests linked to Java-developed code and in complex IT platforms and environments.

• Have worked with databases including JDBC: Database connectivity and optimization, JPA/Hibernate: ORM and database abstraction and Connection Pooling: Efficient database connection management.

• Have worked with Advanced Java functions such as Lambda Expressions and have deep knowledge and understanding of Java 8 lambdas, Streams API: Efficient use of Java 8 Streams, Optional: Handling null values with Optional and Date/Time API: Java 8's new date/time API.

• Have worked with architecture including microservices: and with knowledge and understanding of microservice architecture, API Design: RESTful API design and implementation and Design Patterns using design patterns in Java.

• Have worked with system development for at least 3+ years out of the last 5 years within IT organization(s) with at least 100 employees.