Senior Java Developer-KeyCloak

Fulltime role from Gothenburg.

Duration 8 months,

Starts ASAP.

Senior java developer with 12-15 years experience in system and software development, architecture and technical troubleshooting.

Development tools - Git, Apache Maven, Eclipse IDE, IntelliJ, Apache Subversion

Programming Languages - Java, Bash scripting, Python, Kotlin

Technologies - MBeans, SQL, JMS, OpenID Connect, SSH, REST API, SOAP, REST,Identity and Access Management, SSO, SAMLv2, HTTPS/TLS

Products - Gradle, Atlassian JIRA, Infinispan, Spring, JBoss EAP, Hibernate,PostgreSQL, MongoDB, JBoss Application Server, Microsoft SQL Server, Oracle DB, RabbitMQ, Jenkins, Amazon S3, JBoss ESB, JBoss Enterprise SOA Platform, Smooks, HornetQ, Git, Keycloak, Docker, Docker Compose, Elasticsearch/Logstash/Kibana, AWS Route 53, AWS ECS, MySQL, AWS API Gateway, AWS DynamoDB, AWS Elastic Load Balancing (ELB), WSO2 API Manager, Azure AD, OpenLDAP, GitLab, Elasticsearch, AWS Cognito, WSO2 Identity Server, AWS EC2, AWS Lambda, AWS CloudFormation, AWS CloudWatch, AWS RDS,AWS SES, AWS Kinesis, AWS SNS, Atlassian Confluence, BankID, Grafana, Kubernetes, Apache Camel, SoapUI, AWS, AWS S3 Bucket, AWS ACM

Development JAX-RPC, JAX-RS, JAX-WS, Spring, SAML, Anypoint Platform, GitHub, Spring Boot, FreeMarker, Javascript/jQuery, JSON, ReactJS

Testing - Integration Testing, System Testing

Design, build, and operate IAM capabilities on Keycloak and Java microservices

Extend Keycloak through custom SPIs, providers, user federation, and themes to meet evolving business requirements

Implement and maintain authentication and authorization flows using OAuth 2.0, OpenID Connect, SAML, MFA, and social or enterprise federation

Drive security best practices, including secure token handling, session management, threat modeling, and supporting audits and compliance

Own services in production, from design through deployment, observability, and incident response

Collaborate with product, security, and platform teams to deliver reliable, scalable identity solutions

Strong Java backend development experience, building and running microservices in production

Proven, hands-on experience with Keycloak in real-world deployments, including customization via SPIs and providers

Deep understanding of OAuth 2.0, OpenID Connect, JWT, and SAML

Nice To Have:

Experience with CIAM at scale: customer identity, identity resolution, or account deduplication

WebAuthn/FIDO2/passkeys, Zero Trust architectures, or PKI

Event-driven architectures (e.g., Kafka)

Observability tooling such as Prometheus, Grafana, and OpenTelemetry

Proven experience designing and operating distributed systems and microservices in production

Solid database skills (e.g., PostgreSQL) and familiarity with caching relevant to Keycloak deployments (e.g., Infinispan/Redis)

Experience with Docker, Kubernetes, CI/CD pipelines, and at least one major cloud platform (AWS or Azure)

A security-first mindset and experience supporting audits and compliance requirements

Competence.

* Java with distributed systems and microservices i

* OAuth 2.0, OpenID Connect, JWT, and SAML

* Solid database skills (e.g., PostgreSQL)

* Docker, Kubernetes, CI/CD pipelines,

* Openshift

* Kafka

* Mq

* Oracle

* Kubernetes

* Azure (API, static web application, app service, sqlserver,