Senior Java Backend Engineer: Spring Boot & Quarkus

Codeninja; Riyadh; On-site; SAR 279,000 - 502,000; Full time

Job summary

CodeNinja in Riyadh invites a Senior Java Backend Developer to design and scale microservices with Spring Boot or Quarkus. You will manage APIs using IBM API Connect, ensure security and performance, and collaborate across product, QA, and DevOps teams.

Ideal candidates bring Java 11+, OpenShift/Kubernetes experience, and strong CI/CD skills. Open Banking domain knowledge is a plus, along with Docker, Kafka, and observability tooling.

Qualifications

• 5+ years of experience in Java backend development.
• Hands-on with Spring Boot and/or Quarkus and microservices.
• Strong knowledge of API security and modern authentication methods.
• Java 11+ and experience with OpenShift alongside Kubernetes.
• Experience with Git, CI/CD (Jenkins, GitLab CI) and API management.

Responsibilities

• Design, develop, and maintain scalable microservices in Java.
• Build, publish, and manage APIs using IBM API Connect (APIC).
• Ensure high performance, security, and scalability of backend systems.
• Collaborate with product, QA, and DevOps teams; participate in code reviews.
• Containerize applications with Docker and deploy on Kubernetes/OpenShift.
• Implement OAuth2/JWT-based authentication and write tests.
• Contribute to CI/CD pipelines and production issue resolution.

Skills

Java backend development

Spring Boot

Quarkus

Microservices architecture

Java 11+

OAuth2/JWT authentication

Open Banking domain knowledge

API security

SQL/NoSQL databases

Tools

IBM API Connect (APIC)

Docker

Kubernetes

OpenShift

Git

Jenkins

GitLab CI

Prometheus

Grafana

ELK

Apache Kafka

Job description

CodeNinja in Riyadh invites a Senior Java Backend Developer to design and scale microservices with Spring Boot or Quarkus. You will manage APIs using IBM API Connect, ensure security and performance, and collaborate across product, QA, and DevOps teams.

Ideal candidates bring Java 11+, OpenShift/Kubernetes experience, and strong CI/CD skills. Open Banking domain knowledge is a plus, along with Docker, Kafka, and observability tooling.