Java Developer Java Spring, Kubernetes & Microservices
I-Ray IT Solutions AB · Solna · Tills vidare · Deadline 2026-11-02
I-Ray IT Solutions AB is hiring a **Java Developer** for a full-time consultant assignment running from 1 January 2027 to 31 December 2027, with a possibility of extension through 2028. Based in Sundsvall, the position operates on a hybrid model allowing **remote work up to 60%** when tasks permit, alongside required on-site presence. Working within an agile, cross-functional team, the developer contributes to the full lifecycle of complex IT systems. Responsibilities include building and maintaining Java and Spring applications, managing CI/CD pipelines and containerised setups, configuring JBoss application servers, and developing asynchronous APIs and microservices alongside tools like Apache Kafka, Camunda, and WSO2 API Manager. Applicants must have documented experience in Java and Java Spring development within complex IT environments, alongside proven experience with CI/CD, Docker, Kubernetes, and application servers such as JBoss. **Strong Swedish communication skills** in both speech and writing are mandatory, and submissions require a CV written in Swedish. Preferred qualifications include familiarity with TDD, BDD, unit testing, asynchronous integrations, Camunda, and agile frameworks such as SAFe, as well as prior cross-functional collaboration within public-sector or government-like settings.
Java Developer – Java Spring, Kubernetes & Microservices
Location: Sundsvall, Sweden
Working Arrangement: Hybrid / Partial Remote
Job Type: Consultant
Reference Number: AD 5655
Assignment Period: 1 January 2027 – 31 December 2027, with a possibility of extension until 31 December 2028
Scope: 100%
Application Deadline: 2 November 2026
About the Assignment
We are looking for an experienced Java Developer to contribute to the development, maintenance, and continuous improvement of complex IT systems. The role involves working in an agile, cross-functional team, focusing on high-quality software development, automation, and efficient delivery.
You will participate throughout the development lifecycle, collaborate closely with technical and business stakeholders, document solutions, and contribute to knowledge sharing.
The assignment is based in Sundsvall, with the possibility of working remotely up to 60% of the time when the work permits. On-site presence may therefore be required.
Key Responsibilities
- Develop and maintain applications using Java and Spring.
- Work with CI/CD pipelines and container technologies such as Docker and Kubernetes.
- Configure and manage application servers, particularly JBoss.
- Apply test-driven development (TDD), behavior-driven development (BDD), and unit testing.
- Develop and integrate asynchronous APIs and microservices.
- Work with Apache Kafka, WSO2 API Manager, and Camunda.
- Contribute to continuous improvements, test automation, and development efficiency.
- Document technical solutions and share knowledge with relevant team members.
- Collaborate within agile teams using iterative development practices.
Mandatory Requirements
- Strong Swedish communication skills, both written and spoken.
- Documented experience in Java and Java Spring development in complex IT environments.
- Documented experience with CI/CD, container management using Docker and Kubernetes, and application servers such as JBoss.
- Ability to work independently, take initiative, collaborate effectively, and communicate proactively.
- A CV written in Swedish is mandatory.
Preferred Qualifications
- Experience with test-driven development (TDD), behavior-driven development (BDD), and unit testing.
- Experience with asynchronous APIs, Apache Kafka, microservices, and WSO2 API Manager.
- Experience with Camunda process management.
- Familiarity with tools and platforms such as Jira, Confluence, Cucumber, MQ Explorer, Bruno, Helm, GitLab, and Maven.
- Experience working with agile and iterative methods, preferably SAFe.
- Experience collaborating in cross-functional teams within public-sector or government-like environments.
Application Process
Interested candidates are invited to submit an updated CV in Swedish, highlighting relevant experience with Java, Spring, CI/CD, Docker, Kubernetes, and microservices.
Please apply as soon as possible. The application deadline is 2 November 2026.