Java Cloud Engineer

ACENSI; Brussel Hoofdstad; Hybride; EUR 65 000 - 90 000; Plein temps

Résumé du poste

ACENSI is seeking a Java Cloud Engineer for a Brussels-based client in the energy sector. You will design, develop, and release Java features and API services, building scalable microservices with Java 17+ and Spring Boot 3.x.

You will design cloud-native apps leveraging Azure or AWS, Terraform IaC, Docker, and Kubernetes. Fluency in French or Dutch and strong English are required in a hybrid Brussels setup.

Qualifications

• Design, develop, and release Java features and API services.
• Build scalable backend microservices with Java 17+ and Spring Boot 3.x.
• Design cloud-native apps on Azure or AWS; Terraform IaC; Docker/Kubernetes.

Responsabilités

• Design, develop, document, and release Java features and API services.
• Build and maintain backend microservices using Java 17+ and Spring Boot 3.x.
• Design cloud-native apps on Azure or AWS; Terraform IaC.
• Package apps with Docker and orchestrate via Kubernetes.
• Optimize CI/CD pipelines (Azure Pipelines or GitLab Actions).
• Solve incidents and communicate with Functional Analysts.
• Weekly Guard duty on the perimeter of the assigned team.
• Propose modern technologies, architectures, and design patterns to improve performance, reliability, and security.

Connaissances

Java development

REST API design

Cloud-native architecture

CI/CD practices

Problem solving

Formation

Bachelor's degree in Computer Science, Information Technology, Mathematics, or related field

Outils

Spring Boot

Docker

Kubernetes

Terraform

Azure

AWS

GCP

Apache Kafka

CI/CD (Azure Pipelines/GitLab Actions)

ELK

ArgoCD

Keycloak

Kong

JFrog

SQL/Relational DB

JUnit

Description du poste

ACENSI is looking for a Java Cloud Engineer for one of their clients based in the energy sector in Brussels :

Key Responsibilities

• Design, develop, document, and release independently and in-team new Javabased software features and API services.
• Build and maintain scalable, secure backend microservices using modern Java frameworks (Java 17+ to Java 21, Spring Boot 3.x).
• Design cloud-native applications leveraging hands-on knowledge of cloud platforms (Azure or AWS preferred; GCP a plus).
• Provision and manage infrastructure using Infrastructure-as-Code tools (Terraform, or equivalent).
• Package applications using Docker and orchestrate via Kubernetes.
• Optimize CI/CD pipelines (Aure Pipelines or Gitlab Actions) to ensure seamless, reliable delivery.
• Solving incidents and communicating with the Functional Analysts.
• Weekly Guard duty on the whole perimeter of the assigned team.
• Actively propose modern technologies, architectures, and design patterns to improve performance, reliability, and security.

Your Profile as Back-End & Cloud Engineer

• Education: Bachelor's degree in Computer Science, Information Technology, Mathematics, or related field.
• Experience: Minimum 4 years in a Java Developer role, preferably in the Energy or Utilities sector.
• Back-end: ,Java EE, Spring Boot, Microservices with Java 17 & Spring Boot 3.X as concrete hands-on experience
• Cloud Infrastructure: Hands-on experience with Docker, Kubernetes, and Azure (or equivalent major cloud provider) in a Cloud-Native setup.
• Messaging & Batch-Processing: Modern message broker experience like AWS SQS/SNS, Azure Servicebus or Apache Kafka for event-based communication & Spring Batch for our batch
• processing;
• Testing: Junit is the bare minimum
• Databases: any modern relational DB
• CI/CD: Azure Pipelines or Gitlab Actions as a minimum
• PLUS (extra) : ELK, ArgoCD, Keycloak, Kong & JFrog knowledge

Languages

Fluent in either French or Dutch, next to an excellent understanding of English.

Soft Skills & Cultural Fit (Crucial)

• Driven by Technology: Genuine passion for IT—engages with tech blogs, podcasts, open-source projects, or community events.
• Proactive & Self-Starter: Doesn't wait for solutions; actively researches and prototypes them.
• Curious & Quality-Focused: Described by peers as a team player, caring about quality, and curious about technology.
• Collaborative Communicator: Able to explain architectural decisions to technical and non-technical stakeholders alike.
• Open to Feedback: Eager to learn and driven by challenges; comfortable in a hybrid work

Location

• Minimally two days per week in the office in Brussels North is mandatory, working remotely the rest of the week is allowed