Senior Fullstack Developer, Brussels (on-site) – Eurocontrol
Job role: Senior Fullstack Developer.
Minimum experience: Minimum of 14 years of professional experience.
Language: English (C1) (Mandatory).
Location: Brussles (on-site).
Key responsabilities:
- Software Development: Design and develop high-performance, scalable applications using Java and Quarkus, ensuring that code is maintainable, efficient, and aligned with best practices.
- Database Optimization: Architect and optimize MongoDB and PostgreSQL schemas, queries, and indexing strategies to achieve high performance and scalability.
- Microservices & Messaging: Develop and scale microservices using Kafka for messaging, integrating with the ELK stack for logging, monitoring, and troubleshooting.
- Performance Engineering: Identify, analyze, and optimize system performance bottlenecks in both code and infrastructure. Ensure optimal performance through rigorous profiling, testing, and fine-tuning.
- DevOps: Expertise with DevOps and CI/CD principles, Use pipelines with Jenkins, SonarQube, and Nexus, focusing on security, automation, and deployment efficiency.
- Security: Implement secure coding practices throughout the development lifecycle.
- Mentorship: Provide guidance to junior developers, sharing knowledge and fostering a culture of continuous improvement.
- Stakeholder Interaction: Work closely with product owners, architects, and other stakeholders to understand requirements, provide technical insights, and deliver effective solutions.
- End-to-End Ownership: Take full ownership of tasks from analysis through design to implementation and deployment. Be proactive in driving solutions independently, ensuring high-quality and timely delivery.
- Storage: Experience with bucket based storage solutions, like MinIO.
- Authentication & Authorization: Knowledge of authorization concepts like Role-Based Access Control (RBAC). Knowledge of authentication concepts like JSON Web Tokens.
- Frontend: proven experience with:
o Core technologies: React (with typescript), webpack (bundling and build configuration) and modern Javascript (ES6+)
o UI & Styling: Ant design
o Testing: Jest (unit/integration testing) and React Testing Library
Technical skills & qualifications:
- Proven experience with Java, Maven and Quarkus/Spring in building large-scale applications.
- Strong experience with Git, ideally Bitbucket
- Strong background in MongoDB and PostgreSQL, with a focus on optimizing data access and ensuring scalability.
- Expertise in Kafka for building event-driven systems and integrating with the ELK stack for monitoring and troubleshooting.
- Deep understanding of performance optimization and profiling techniques for both code and database layers.
- Strong experience with Docker, Kubernetes, Jenkins, SonarQube, and Nexus for DevOps and CI/CD pipelines.
- Ability to implement security best practices, including secure coding, vulnerability management, and compliance.
- Solid experience in Agile methodologies with a focus on delivering high-quality software in iterative cycles.
- Exposure to performance profiling tools and security tools (e.g., Snyk, OWASP).
Interpersonal skills & proven maturity:
- Excellent soft skills, including the ability to analyze requirements, communicate effectively with cross-functional teams, and take initiative and drive tasks to completion.
- A proactive and independent mindset, with the ability to work with minimal supervision and take full responsibility for end-to-end delivery.
- Not afraid to completely take over a codebase without proper handover by a previous team of developers.
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