Back End Developer

Job Title: Back-End Developer

Contract Duration: Long term

Work Location: Brussel, VLG, Belgium

Languages Required: English, French

Remote Status: Hybrid

Work Regime: Full Time

Job Description

Back-End Developer Role

Description of Tasks:

The selected external service provider will be responsible for:

• Developing back-end website applications.
• Integrating user-facing elements created by front-end developers with server-side logic.
• Implementing core business logic and application functionality.
• Creating servers and databases for seamless operations.
• Designing and implementing data storage solutions.
• Ensuring security and data protection standards are met.
• Optimizing application speed and scalability.
• Designing and developing APIs.
• Participating in software design and scaling applications.
• Taking the lead on projects, as needed.
• Maintaining code integrity and organization.
• Writing clean, functional back-end code.
• Analyzing and troubleshooting data, processes, and codes.
• Identifying areas for improvement and optimization.
• Testing and fixing bugs and other coding issues.
• Meeting technical and consumer needs.
• Writing technical documentation.

Technical Knowledge & Required Skills:

Programming & Development Expertise:

• Proficiency with back-end languages/frameworks such as Java8+.
• Knowledge of front-end technologies (JavaScript, TypeScript, HTML, CSS, Angular) is a plus.
• Expertise in Java frameworks:
• Spring, Spring Boot, Hibernate.
• Proficiency in RDBMS databases (Oracle).
• Experience with SOAP Webservices and REST APIs.
• Knowledge of messaging systems (JMS, Kafka, ActiveMQ).
• Familiarity with NoSQL databases (preferred).
• Knowledge of version control tools (Git).
• Experience with CI/CD deployment suites (Bamboo).
• Expertise in Java application servers (WebLogic, configuring domains, deploying applications).
• Knowledge of containerization technologies (Docker).
• Familiarity with container orchestration (Kubernetes is a plus).

Non-Technical Skills:

Due to the international nature of the organization, candidates should have:

• Autonomy and strong organization skills.
• Attention to detail and problem-solving abilities.
• Ability to integrate into multicultural teams.
• Experience working in large international projects.
• Ability to participate in multilingual meetings.
• Excellent team player qualities.
• Ability to communicate effectively in English (B1 level).
• French proficiency (B1 level) is an advantage.
• High degree of discretion and integrity, as handled applications contain confidential data.

Specific Expertise Requirements (Mandatory):

• Experience in Java8+, Spring, Spring Boot, Java EE.
• Knowledge of OpenID Connect integration.
• Experience in Single Sign-On (SSO).
• Cloud development experience (AWS).
• Understanding of API GW configuration with OAuth 2.
• Knowledge of Oracle WebLogic Server, Apache, Nginx.
• Expertise in SSL/TLS protocol configuration on application servers.
• Experience in reverse proxy configuration.
• Kafka and JMS expertise.
• Oracle DB experience.
• Strong understanding of REST and SOAP services.
• CI/CD pipeline knowledge.
• Experience in building and deploying microservices.
• Familiarity with web services testing tools (SOAPUI, ReadyAPI, Postman).