Senior IAM & Java Backend Engineer

Next Ventures; Göteborgs kommun; On-site; SEK 700,000 - 900,000; Full time

Job summary

Next Ventures is seeking 3 experienced Java Developers with strong hands-on Keycloak and Identity & Access Management experience to develop and support secure backend applications and authentication services.

This assignment combines Java backend development with identity security, working across microservices, API security and authentication integrations. You will work across distributed systems with containerised deployments, Docker and CI/CD pipelines.

Qualifications

• 5+ years of commercial Java development experience, including Java 11/17+.
• Significant hands-on Keycloak experience in production environments.
• Strong understanding of OAuth 2.0, OpenID Connect, JWT and SAML.
• Experience with PostgreSQL, Oracle or MySQL.
• Working knowledge of Git, Maven/Gradle, Docker and CI/CD.
• Experience developing secure REST APIs, microservices and distributed systems.
• Practical knowledge of SSO, RBAC, MFA and identity federation.

Responsibilities

• Develop and maintain backend applications and microservices using Java and Spring Boot.
• Configure, integrate and support Keycloak in production environments.
• Implement authentication and authorisation using Spring Security, OAuth 2.0, OpenID Connect, JWT and SAML.
• Build secure REST APIs and integrate applications with identity services.
• Implement and support single sign-on, role-based access control, multi-factor authentication and identity federation.
• Troubleshoot application, authentication and integration issues across distributed systems.
• Support containerised deployments and automated delivery using Docker and CI/CD pipelines.

Skills

Java

Spring Boot

Spring Security

OAuth 2.0

OpenID Connect

JWT

SAML

REST APIs

RBAC

MFA

Tools

Keycloak

Docker

Git

Maven/Gradle

CI/CD

PostgreSQL

MySQL

Oracle

Job description

Next Ventures is seeking 3 experienced Java Developers with strong hands-on Keycloak and Identity & Access Management experience to develop and support secure backend applications and authentication services.

This assignment combines Java backend development with identity security, working across microservices, API security and authentication integrations. You will work across distributed systems with containerised deployments, Docker and CI/CD pipelines.