Senior Fullstack Developer, Brussels

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.

Language:

·       English (C1).

Location:

·       Brussels (on-site).

Rate:

· €/day.