Azure Integration Services Developer

About Proximus Luxembourg

Proximus Luxembourg is a leading historical player in the ICT & Telecoms markets. Proximus Luxembourg addresses both residential and business markets through its commercial brands Tango, Proximus NXT and more recently Codit.

With PSF support status, the company has almost 750 employees. All these experts share a passion for digital technology, a spirit of openness and innovation, and a desire to simplify, connect and make their customers' personal and professional activities ever more secure.

Proximus Luxembourg is actively contributing to the acceleration of Luxembourg's digitalisation and its economic influence through the development of connectivity, resilient infrastructures and 5G, as well as innovative technologies such as Blockchain, Artificial Intelligence, Machine Learning and IoT.

Proximus Luxembourg is a subsidiary of the Proximus group (Euronext Brussels : PROX), provider of digital services and communication solutions operating in the Belgian and international markets.

Your mission

We are seeking a skilled Azure Integration Services Developer with expertise in C# to join our dynamic team. The ideal candidate will be responsible for designing, developing, and implementing integration solutions using Microsoft Azure services, ensuring seamless data flow and connectivity between systems. Your role will involve leveraging Azure tools like Logic Apps, Azure Functions, Service Bus, API Management, and other related services to build efficient, scalable, and secure integrations.

Key Responsibilities

Integration Design and Development

• Develop and maintain cloud-based integration solutions using Azure Integration Services (Logic Apps, API Management, Service Bus, Event Grid, etc.).
• Design and implement RESTful APIs and microservices using C# and ASP.NET Core.
• Build and manage Azure Functions for serverless architecture.

Azure Platform Expertise

• Configure and optimize Azure services for integration workflows.
• Implement secure and scalable solutions leveraging Azure Active Directory (AAD) and OAuth for authentication.
• Use Azure DevOps for CI / CD pipelines to automate deployments and manage code.

Data and Messaging Systems

• Work with Azure Service Bus, Event Hubs, and Event Grid for messaging and event-driven architectures.
• Ensure robust data exchange between applications using JSON, XML, and other data formats.
• Integrate with external and internal databases (e.g., SQL Server, Cosmos DB) and APIs.

Collaboration and Troubleshooting

• Collaborate with cross-functional teams to gather requirements and provide technical solutions.
• Debug, test, and troubleshoot integration workflows and C# code to resolve issues promptly.
• Maintain technical documentation for integration processes and workflows.

Performance and Security

• Ensure integrations are performant, cost-efficient, and compliant with best practices.
• Implement Azure security best practices, including role-based access control (RBAC), data encryption, and network security.

Your profile

Required Skills and Qualifications

• Education: Bachelor's degree in Computer Science, Software Engineering, or a related field.

Experience

• 3-5+ years of professional experience in C# and .NET development.
• Hands‑on experience with Azure Integration Services (Logic Apps, Service Bus, API Management, Azure Functions).
• Proficiency in designing and implementing RESTful APIs and working with web protocols (HTTP, SOAP, etc.).
• Familiarity with data formats like JSON, XML, and CSV.

Technical Skills

• Strong understanding of Azure architecture and PaaS offerings.
• Experience with event-driven architectures and messaging systems (e.g., Service Bus, Event Hubs).
• Knowledge of Azure DevOps, Git, and CI / CD pipelines.
• Proficient in SQL and NoSQL database integration (e.g., Azure SQL, Cosmos DB).
• Strong debugging, problem-solving, and performance tuning skills.

Soft Skills

• Fluent in spoken and written English.
• Strong communication and collaboration skills.
• Ability to work independently and in a team environment.
• Analytical mindset with a focus on delivering high-quality solutions.

Preferred Qualifications

• Microsoft Certified: Azure Developer Associate or Azure Solutions Architect Expert.
• Experience with hybrid integration scenarios, including on‑premises and cloud‑based systems.
• Familiarity with containerization (e.g., Docker, Kubernetes).
• Knowledge of Power Platform tools (e.g., Power Automate) is a plus.
• Knowledge Azure AI Services is a plus.
• Knowledge of IaC (e.g., ARM Template/Terraform) is a plus.

What We Offer

• Competitive salary and benefits package.
• Opportunities for professional growth and Azure certifications.
• A collaborative and innovative work environment.
• Exposure to cutting‑edge technologies and enterprise‑level projects.

Our offer

A professional and stimulating work environment in the IT & telecom sector. Multiple career opportunities within the Proximus Group at national and international level, cutting-edge training in new technologies, a wealth of recognized expertise. We also offer an attractive salary package and many other benefits.

Our company is an equal opportunity employer, valuing diversity in all its forms. We firmly believe that each individual brings a unique richness to our teams, and we are committed to creating an inclusive environment where every voice counts.

If at the end of the process your application is successful, you will be asked to provide an extract from your criminal record. Your personal information will be handled in compliance with applicable data protection laws.