java developer in cloud-native solutions

Описание

Callisto Web Solutions B.V. provides IT services and consulting, delivering cloud-native solutions for clients.

Задачи

Design, plan, and implement microservices-based architectures across the full software development lifecycle

Develop scalable and maintainable applications using Java 17/21 and Spring Boot 3

Design and implement event-driven architectures using Kafka and Azure Event Hubs

Develop secure applications using OAuth2, JWT, and Spring Security

Work with SQL and NoSQL databases, including Azure Cosmos DB

Analyse and optimise application performance through JVM configuration, profiling, garbage collection, and performance tuning, including JMeter

Develop and maintain comprehensive unit and integration testing using Mockito, Testcontainers, Rest Assured, and Cloud Contract

Build and manage containerised applications using Docker and Kubernetes, preferably Azure Kubernetes Service (AKS)

Implement and maintain CI/CD pipelines and cloud-native deployment practices

Design and manage Azure infrastructure using Infrastructure as Code with Bicep/Terraform

Implement and maintain Azure security practices, including Identity Management, RBAC, and compliance

Develop monitoring and observability solutions using Azure Monitor, Prometheus, and Grafana

Identify opportunities to improve resource utilisation, performance, scalability, and cost efficiency

Stay up to date with emerging technologies and contribute to continuous technical improvement.

Требования

Extensive professional experience with Java 17 and/or Java 21

Strong experience with Spring Boot 3 and the Spring ecosystem, including Spring Core, Spring Security, Spring JPA, Transactions, and AOP

Strong understanding of microservices and distributed systems

Experience with SQL and NoSQL databases, preferably Cosmos DB

Hands-on experience with JVM performance tuning and memory management

Experience with OAuth2 and JWT

Practical experience with Kafka and/or Azure Event Hubs

Strong experience with Docker and Kubernetes, preferably AKS

Solid knowledge of Microsoft Azure, including Key Vault, Storage, VMs, Networking, and related services

Experience with Terraform and/or Bicep

Knowledge of cloud security, identity management, RBAC, and compliance

Experience with Azure monitoring, Prometheus, and Grafana

Strong understanding of CI/CD and DevOps practices

Excellent problem-solving, communication, and collaboration skills

Ability to work effectively with clients and multicultural, multidisciplinary teams.

Условия

No conditions specified

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