Software Engineer

Airswift; Lyon; On-site; EUR 83,000 - 120,000; Full time

Job summary

Airswift in Lyon is seeking an experienced Software Engineer to support and enhance business-critical applications handling data management, file transfer, and system integrations. The role focuses on .NET, SQL Server, and cloud-based MES processes within a complex enterprise environment.

You will work with Azure technologies, CI/CD pipelines, and messaging services, collaborating with international teams while maintaining independence on technical solutions.

Qualifications

• Extensive hands-on experience with .NET Framework/C# and SQL Server development.
• Experience building or supporting enterprise integrations.
• Proficient with Azure CI/CD pipelines and Azure Functions.
• Familiar with messaging technologies (MQ or similar).
• Ability to work autonomously in a small team; professional English communication.

Responsibilities

• Develop, maintain, and enhance .NET applications and MS SQL Server databases.
• Support data processing, validation, and file transfer within enterprise systems.
• Maintain integrations between internal and external applications.
• Modernise legacy components and reduce technical debt across platforms.
• Ensure reliable automated processing, file-transfer workflows, and messaging services.
• Work with Azure technologies, CI/CD pipelines, and cloud-based services.
• Collaborate with international teams while working independently on technical solutions.

Skills

.NET Framework / C#

SQL Server

Application integrations

Azure DevOps / CI-CD

Azure Functions

Messaging (MQ)

Autonomy

English communication

Tools

Azure DevOps

MQ Messaging

SQL Server Management Studio

Job description

Software Engineer (.NET / SQL / Integration Systems)

Duration: ASAP - 31/12/2027

Workload: Full time hours

Setup: Freelance (Daily Rate / Limited Company / Umbrella / Sole Trader)

Sponsorship Not Provided

Location: Lyon, France (minimum 3 days onsite per week)

The client is seeking an experienced .NET Software Engineer to support and enhance business-critical applications responsible for data management, file transfer, system integrations, and automated processing within a complex enterprise environment.

Key Responsibilities

• Develop, maintain, and enhance .NET applications and Microsoft SQL Server databases.
• Support enterprise systems responsible for business-critical data processing and validation.
• Maintain and improve integrations between internal and external applications.
• Modernise legacy components and help reduce technical debt across existing platforms.
• Ensure reliable automated processing, file-transfer workflows, and messaging services.
• Work with Azure technologies, CI/CD pipelines, and cloud-based services.
• Collaborate with international teams while working independently on technical solutions.

Must-Have Skills

• Strong commercial experience with .NET Framework/C#.
• Microsoft SQL Server and database development.
• Experience building or supporting application integrations.
• Azure CI/CD pipelines and Azure Functions.
• Experience with messaging technologies (MQ or similar).
• Ability to work autonomously within a small team.
• Professional English communication skills.

Nice-to-Have

• Experience supporting legacy application modernisation projects