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Sansaone

Full Stack Engineer

Sansaone
Belgium · Full-time · Mid-Senior

Title: Full stack developer

Location : BRUSSELS, Belgium

Duration : 6 Months

Work Mode : Onsite

Languagues: English


Job Description:

We currently have a vacancy for a Full Stack developer fluent in English, to offer his/her services as an expert who will be based in Brussels, Belgium. The work will be carried out either in the company’s premises or on site at customer premises. In the context of the first assignment, the successful candidate will be integrated in the Development team of the company that will closely cooperate with a major client’s IT team on site.


Tasks:


  • Development of front-end website;
  • Development of back-end website;
  • Design and develop APIs;
  • Building reusable code for future use;
  • Development and integration of technological components;
  • Implementation of user requirements;
  • Assistance with deployment and configuration of the system;
  • Elaboration of test programs.


Requirements

University degree in IT or relevant discipline, combined with minimum 17 years of relevant working experience in IT;


  • Excellent experience with Java 8 and Java 11. (Java 17 and above are plus);
  • Excellent experience working with Javascript frameworks (Angular, JQuery, React, NPM, Knockout JS, Kendo UI) as well as HTML 5 and CSS3;
  • Experience with Spring and Spring Boot, Hibernate/JPA, MVC, Validation, Testing and Spring Security;
  • Experience with Relational DBMS, PL/SQL and Oracle (versions 8+);
  • Experience with Continuing Development / Continuing Integration techniques, knowledge of source code control repositories (GIT/Bitbucket) and build tools such as Maven and Gradle;
  • Experience working with the Atlassian Suite, JIRA Confluence Bitbucket and bamboo;
  • Experience with Weblogic and Tomcat;
  • Experience with, Spring Boot Test, jUnit and Mockito;
  • Experience with Struts and JSP technology;
  • Good knowledge of interoperability technology (REST, Service Oriented Architecture, web services, message-oriented middleware, service-oriented bus);
  • Good knowledge and experience working with JSON format with libraries GSON or JACKSON;
  • Knowledge of UML, in particular use case, state transition and activity diagrams;
  • Good knowledge of Agile principles;
  • Knowledge of SOAP and Spring Web Services;


Nice to have:

Knowledge of modern security frameworks/protocols such as JWT, JWE, JWKS, OIDC and CAS, encryption and signing is an asset;

  • Knowledge of design principles such as SOLID, IDEALS and CQRS. SAGA is an asset;
  • Knowledge of API Gateways such as WSO2 and Spring Cloud Gateway or Eureka/Zuul;
  • Knowledge of DevSecOps, Kubernetes, Docker or AWS are an asset;
  • Knowledge of MySQL (versions 5+) is an asset;
  • Experience with Enterprise Service Bus technologies (Apache Camel, Apache ServiceMix, Oracle Service Bus…) is an asset;
  • Knowledge of Web accessibility standards (WCAG 2.0, WCAG 2.1, WAI-ARIA) is an asset;
  • Good understanding of UX design best practises, in particular responsive and mobile-first design, is an asset;
  • Experience in integration ECAS/EULogin, Decide and ARES is an asset;
  • Excellent command of the English language.

Key Skills

Ranked by relevance

java spring boot apache oracle javascript kubernetes responsive confluence angular docker jquery react mysql maven cloud junit jira aws uml npm ui ux
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Posted
Nov 04, 2025
Type
Full-time
Level
Mid-Senior
Location
Brussels
Company
Sansaone

Industries

IT Services IT Consulting

Categories

Information Technology

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