Senior Java Backend IAM Engineer: Keycloak & Microservices

Aurora Engineering AB; Göteborgs kommun; On-site; SEK 900,000 - 1,200,000; Full time

Job summary

Aurora Engineering AB in Sweden seeks an experienced Senior Java Backend Engineer focused on Identity and Access Management (IAM) to join a project delivering secure, scalable authentication and authorization services.

You will work on a modern identity platform using Keycloak and Java microservices, implementing OAuth 2.0, OIDC, SAML, and MFA, and collaborating across security, product, and platform teams to ship reliable IAM solutions.

Qualifications

• Extensive Java backend development experience with Spring Boot.
• Proven hands-on Keycloak in production.
• Experience developing custom Keycloak SPIs, user federation, or providers.
• Strong knowledge of OAuth 2.0, OpenID Connect, JWT and SAML.
• Experience with distributed systems and production microservices.
• Experience with relational databases (PostgreSQL).
• Caching systems knowledge (Redis, Infinispan).

Responsibilities

• Design, develop, maintain and operate secure IAM solutions using Keycloak and Java microservices.
• Customize and extend Keycloak using SPIs, custom providers, user federation and themes.
• Develop and maintain authentication and authorization flows using OAuth 2.0, OIDC, SAML and MFA.
• Implement secure token handling, session management and identity federation.
• Design and develop scalable, reliable Java/Spring Boot microservices.
• Apply security best practices, including threat modeling and secure coding.
• Take ownership of backend services from design to deployment and production support.
• Monitor performance, troubleshoot incidents and improve reliability.
• Collaborate with security, product, platform and development teams to deliver IAM solutions.
• Contribute to CI/CD automation and technical documentation.

Skills

Java backend

Spring Boot

Microservices

Keycloak

OAuth 2.0

OIDC

SAML

JWT

Cloud platforms AWS/Azure

Docker

Kubernetes

CI/CD pipelines

Security best practices

Tools

PostgreSQL

Redis

OpenTelemetry

Prometheus

Grafana

Kafka

Job description

Aurora Engineering AB in Sweden seeks an experienced Senior Java Backend Engineer focused on Identity and Access Management (IAM) to join a project delivering secure, scalable authentication and authorization services.

You will work on a modern identity platform using Keycloak and Java microservices, implementing OAuth 2.0, OIDC, SAML, and MFA, and collaborating across security, product, and platform teams to ship reliable IAM solutions.