Our client is looking for a Software Engineer with hands-on experience in building microservices and 12-Factor, cloud-native applications using Java, Quarkus and Dapr. You will design, implement, and operate distributed services running on containerised infrastructure with fully automated CI/CD pipelines. This is a must-have Quarkus + Dapr role: you will actively use both frameworks daily to build resilient, observable, and event-driven services. Responsibilities
Design and develop backend microservices using Java and Quarkus. Apply 12-Factor App principles (config externalisation, stateless processes, disposability, logs, etc.). Implement synchronous and asynchronous communication patterns (REST/gRPC, pub/sub, events). Dapr-based cloud-native services Use Dapr sidecars and building blocks (service invocation, pub/sub, bindings, state stores, secrets, workflows) to build loosely coupled services. Define and maintain Dapr component configurations for various backends (message brokers, state stores, etc.). Implement resilience patterns (retries, timeouts, circuit breakers, idempotency) leveraging Dapr and Quarkus. Work with CI/CD pipelines (e.g. GitLab CI, GitHub Actions, Azure DevOps, Jenkins) for build, test, security scanning, and deployment. Ensure high test coverage through unit, integration and contract tests integrated into the pipeline. Deploy and operate services on container orchestration platforms such as Kubernetes. Quality, security & observability Write clean, maintainable, testable code following best practices and design patterns. Implement observability: structured logging, metrics and distributed tracing (e.g. via OpenTelemetry through Quarkus/Dapr). Collaboration & lifecycle ownership Work in cross-functional agile teams with product owners, architects and other engineers. Participate in code reviews, design sessions, and troubleshooting of production issues. Own services end-to-end from design through implementation to monitoring and continuous improvement. Required Qualifications & Experience
Bachelor’s or Master’s degree in Computer Science, Software Engineering, or equivalent practical experience. Proven, hands-on experience with Quarkus in production or complex pilot projects. Proven, hands-on experience with Dapr (sidecar model + at least service invocation and one of: pub/sub, state store, bindings, workflows). Solid understanding and practical use of microservices architecture and 12-Factor App principles. Experience building and consuming RESTful APIs (gRPC experience is a plus). Experience with Docker and deploying services to Kubernetes (or similar). Experience with at least one CI/CD system (GitLab CI, GitHub Actions, Azure DevOps, Jenkins, etc.). Familiarity with relational and/or NoSQL databases. Good communication skills and experience working in agile teams. Important:
Hands-on experience with both Quarkus and Dapr is mandatory. Candidates without demonstrable experience in these technologies will not be considered. Nice-to-Have
OpenTelemetry and observability stacks (Prometheus, Grafana, Jaeger, Tempo, etc.). API gateways or service meshes (e.g. Istio, Kong, Envoy). Familiarity with domain-driven design (DDD) and hexagonal/clean architecture. Experience in large-scale or regulated enterprise environments.
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