Senior .NET Developer — AI Agents & Foundry, 6–12 Months

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

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.