.NET Developer with Microsoft Agent Framework

About the Position

We are looking for an AI Developer experienced with .NET and the Microsoft Agent Framework to join a team focused on developing an internal AI Agent for a leading company in the FMCG industry in the world. In this role, you will work remotely, collaborating with a talented group of professionals to create innovative solutions leveraging Microsoft technologies.

Responsibilities

• Designing and developing AI Agent using the Microsoft Agent Framework, C# and .NET
• Integrating external LLMs/APIs (OpenAI, Azure OpenAI)
• Building robust RESTful APIs
• Automating deployments and CI/CD pipelines (Azure DevOps, GitHub)
• Optimizing performance and scalability of AI solutions

Requirements

• Minimum 4 years of experience as a .NET Developer, including over 1 year focused on LLMs and GenAI solutions development
• Proven track record with the Microsoft Agent Framework / Semantic Kernel and Microsoft.Extensions.AI
• Solid understanding of AI agent concepts and prompt engineering
• Practical knowledge of Azure services, including Bot Service, Functions, App Service, AI Foundry, and AI Search
• Fluency in English
• Residing in Poland

We Offer

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care

About the Company

Since 2015, we have been recognized with the Great Place to Work title every year, a prestigious award based on employees feedback. According to the study, over 92% of people working at Sii consider it a fantastic place to work.

We began as a one-person start-up in 2006 and grew into a 7,500 workers company in 2025, generating revenue of PLN 2.2BN, having no debts, and being recognized as the leading IT services provider in Poland by the Computerworld TOP200 report.

We are a key partner for many prestigious global companies from different sectors i.a: BNP Paribas, KUKA, ING or Bombardier with whom we have contracts that guarantee continuity of employment for our workers.

Our own training center organized around 300 technical and soft skills training courses last year. More than 3,300 people took part and rated them at 4.7/5. Trainings are conducted by professionals.

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.