AI Developer with .NET and Microsoft Agent Framework (f/m/x)
Offer summary

(Summary generated by AI based on the full job description)

The project involves developing an AI Agent for a company in the FMCG industry using .NET 10, C# and Microsoft Agent Framework. Responsibilities include designing and developing the AI Agent, integrating external LLM/APIs (OpenAI, Azure OpenAI), building RESTful APIs, automating CI/CD with Azure DevOps and GitHub, and optimizing AI solution performance and scalability.

new

AI Developer with .NET and Microsoft Agent Framework (f/m/x)

Company: Sii Sp. z o.o.

from: 15 July 2026
to: 14 August 2026
salary not specifiedB2B contract
Offer parameters
level:mid
working mode:remote • hybrid • full office
Białystok, Centrum
Białystok, CentrumJózefa Marjańskiego 3View on map

Requirements

Expected technologies

C#
Microsoft Agent Framework
Microsoft Azure
.NET
LLM
GenAI

Our requirements

  • Proficiency in .NET 10 and C#
  • Minimum 4 years of experience working with LLMs and building GenAI applications
  • Hands-on experience 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

Your responsibilities

  • Designing and developing AI Agent using 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

About the project

We are looking for an AI Developer experienced with .NET and 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.

This is how we work on a project

  • Continuous Deployment
  • Continuous Integration
  • DevOps
Company

What we offer

  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

Recruitment stages

  • 1.
    Send your CV
  • 2.
    Talk to us about your expectations
  • 3.
    Learn more about our projects and choose the best
  • 4.
    Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

This is how we work

AI Developer with .NET and Microsoft Agent Framework (f/m/x)
I apply to:
Sii Sp. z o.o.
Białystok, Centrum
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