Founded in 2020 in Belgium, ATS4IT is part of the Moongy Group, established to strengthen agap2IT’s presence in Europe. Since 2021 we expanded further with the opening of our Danish branch in Copenhagen, and our Spanish brand in Madrid, reinforcing our commitment to being a key player in the European technology landscape. Proximity, transparency, and collaboration define our approach at ATS. We aim to be your trusted partner and the first choice for your technological challenges.

Position: Senior Full Stack Java Developer (EN + FR/NL)

Location: Brussels, Belgium

Remote Work Possibility: Hybrid Setting

Type of Contract: Permanent Contract preferably

Mandatory Languages: English (C1 minimum) - French or Dutch (B2 minimum)

Eligibility: Candidates must possess European nationality or a valid work permit for Belgium.

We are looking for an experienced Senior Full Stack Java Developer with over 10 years of hands-on experience in backend and frontend development, particularly in Java and Angular ecosystems.

Required Experience & Skills

Java Development & Bug Fixing – 10+ years
Spring Framework (Boot, Data, Security) – 10+ years
RESTful APIs / Kafka / RabbitMQ – 10+ years
TDD / DDD – 10+ years
CI/CD tools (Git, Jenkins, Artifactory) – 10+ years
Hibernate / JPA (v3) – 10+ years
SQL Databases (PostgreSQL, MySQL, Oracle) – 10+ years
Microservices with Spring Boot – 5+ years
OpenShift / Kubernetes (CKAD certified) – 5+ years
Grafana & ELK Stack – 5+ years
DevOps principles – 5+ years
Java 21+ – 2+ years
PrimeNG – 2+ years
Angular Mono-Repo – 2+ years
Figma – 2+ years
Angular (v19) – at least one project
RX-JS Signals – at least one project
LeSS Agile framework – at least one project

Key Responsibilities

Design, develop, and maintain high-performance Java applications using Java 21+
Implement secure and scalable microservices with Spring Boot
Build and enhance front-end applications using Angular (v19+)
Collaborate in Agile teams using LeSS (Large-Scale Scrum)
Apply best practices like TDD, DDD, and CI/CD in daily development
Work with RESTful APIs, asynchronous messaging (Kafka, RabbitMQ), and log management tools (ELK Stack, FluentD)
Contribute to UI/UX implementation using PrimeNG, RX-JS Signals, and Figma
Operate in a DevOps environment, managing deployments with Kubernetes (CKAD certified) and OpenShift

Languages

English – C1 level (mandatory)
French or Dutch – C1 level (mandatory)

What We Offer

DKV Insurance
Free training (technical, behavioral, language) and certifications
Continuous and personalized career progression support
Opportunities to work on projects with cutting-edge technologies
Opportunity to work in a global network of companies, with access to a wide range of challenging projects in different European markets.

At ATS4IT, part of the agap2IT family, we promote equality and value diversity. We foster a safe, inclusive environment where opportunities are equal for all. We welcome applications from individuals of all backgrounds, based solely on merit. Join us and be part of the future!

ATS4IT

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Senior Full Stack Java Developer (EN + FR/NL)