Senior .NET Developer (6-12 months assignment)

Jobbex IT; Lisboa; On-site; EUR 48,000 - 70,000; Full time

Job summary

Jobbex.IT in Portugal is seeking a Senior .NET Developer for a 6-12 months assignment to support a client. You will develop core features using .NET and help build a scalable telecom platform within a cross-functional team.

The role emphasizes deploying AI agents with Microsoft Foundry, ensuring clean, reliable, and secure code, and actively participating in reviews and testing to improve team practices.

Qualifications

• Strong hands-on experience as a .NET developer.
• Practical experience with Microsoft Foundry; security background not required but advantageous.
• Microsoft certifications listed in the ad (AI-200/AZ-204, AI-103/AI-102, GH-300).

Responsibilities

• Develop and evolve the platform's core features using .NET.
• Create, integrate, and deploy AI agents with Microsoft Foundry.
• Help shape a scalable, multi-operator architecture for telecom providers.
• Work with the existing team to deliver clean, reliable, and secure code.
• Help automate how security incidents are detected, analysed, and handled.
• Take an active part in code reviews and testing, and help improve how the team works.

Skills

.NET development

Microsoft Foundry

GitHub Copilot

Education

Microsoft Azure AI certifications (AI-200 / AZ-204)

Azure AI Apps and Agents Developer (AI-103 / AI-102)

GitHub Copilot (GH-300)

Job description

Senior .NET Developer (6-12 months assignment)

About the job Senior .NET Developer (6-12 months assignment)

Jobbex.IT, a company that empowers people & organizations by matching great talents to great projects, is looking for the next Senior .NET Developer (6-12 months assignment)to support one of our clients.

If you feel inspired to make a change and if you want to be part of the cool kids on the block, this opportunity is for you!

Be ready to find at Jobbex Portugal the transparent, friendly, and professional work environment you have been looking for.

What you'll be doing:

• Develop and evolve the platform's core features using .NET.
• Create, integrate, and deploy AI agents with Microsoft Foundry
• Help shape a scalable, multi-operator architecture that serves different telecom providers.
• Work with the existing team to deliver clean, reliable, and secure code.
• Help automate how security incidents are detected, analysed, and handled.
• Take an active part in code reviews and testing, and help improve how the team works.

You’ll be a great match if you have:

• Strong hands-on experience as a .NET developer.
• Practical experience with Microsoft Foundry. A security background isn't required, but it's a real advantage.
• Ideally, one or more of these Microsoft certifications:
  • AI-200 Azure AI Cloud Developer (or AZ-204)
  • AI-103 Azure AI Apps and Agents Developer (or AI-102)
  • GH-300 GitHub Copilot