We are looking for an experienced Node.js Developer who can take ownership of projects from start to finish.

You will build new applications, maintain existing ones, integrate distributed systems, work with message brokers and event streaming platforms, maintain .NET components, manage CI/CD pipelines, and handle deployments.

This role offers growth opportunities with mentorship and hands-on training in distributed systems, event-driven architectures, and cloud technologies.

Experience with Azure cloud services and serverless architectures is a plus.

Key Responsibilities :

Project Ownership

• Take full responsibility for the applications and features you work on.
• Follow tasks from requirements through to production delivery and maintenance.
• Communicate clearly with the team and proactively suggest improvements.

Application Development & Cloud

• Develop new backend features and APIs using Node.js with JavaScript/TypeScript.
• Maintain and improve existing applications and services.
• Build and maintain serverless components.
• Maintain and extend existing .NET/C# microservices and components.
• Diagnose and fix bugs, memory leaks, and performance bottlenecks.

System Integration

• Build and maintain integrations between internal and external systems.
• Implement synchronous integration patterns using REST APIs and GraphQL.
• Implement asynchronous integration patterns using message brokers (NATS.io, RabbitMQ) and event streaming platforms (Apache Kafka).
• Design and implement event-driven architectures with proper message schemas and contracts.

Teamwork

• Participate in architecture discussions and technical planning sessions.
• Write clear technical documentation for APIs, services, and deployment procedures.
• Conduct code reviews and share best practices with the team.

Profile :

Required Skills

• Strong experience with Node.js and JavaScript/TypeScript.
• Experience building and maintaining REST APIs.
• Experience with relational databases (like PostgreSQL, SQL Server).
• Understanding of NoSQL databases (like MongoDB, Redis) and when to use them.
• Understanding of message patterns: pub/sub, request/reply, queue-based routing, topics.
• Understanding of message brokers (like NATS.io, RabbitMQ) for asynchronous communication.
• Understanding of event streaming platforms (like Apache Kafka) for event sourcing or event-driven architectures.
• Fluency in English.

Nice-to-Have

• Experience with .NET / C#.
• Experience with Azure Functions and serverless architectures.
• Familiarity with microservices.
• Fluency in French, German, or Luxembourgish.

Soft Skills

• Strong sense of ownership and accountability for code quality and production stability.
• Clear, direct communication with both technical and non-technical stakeholders.
• Self-management skills - ability to prioritize tasks and work independently.
• Collaborative mindset and willingness to help team members.
• Proactive approach to identifying and resolving technical debt.