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Offer summary

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

The project involves development and maintenance of a business-critical platform based on .NET 8, .NET Framework 4.8, SharePoint On-Premises 2016/2019 and Microsoft Azure, integrating AI, Azure OpenAI and Azure AI Document Intelligence. Responsibilities include designing and developing new backend and frontend features (Angular 2+, Blazor), maintaining the existing solution, troubleshooting, and working closely with the client on requirements and technical decisions.

newyou can start ASAP

Fullstack .NET Developer

Company: APN Promise S.A.

from: 12 August 2026
to: 11 September 2026
salary not specifiedB2B contract (full-time)
Offer parameters
level:mid
working mode:remote
Warszawa, Mokotów
Warszawa, MokotówDomaniewska 44AView on map

Requirements

Expected technologies

C#
.NET
Angular
Blazor
Git

Our requirements

  • Very good knowledge of C#.
  • Practical experience with .NET 8 and .NET Framework 4.8.
  • Experience with SharePoint On-Premises 2016/2019, including development, maintenance and troubleshooting.
  • Good knowledge of MS SQL Server.
  • Experience with frontend technologies: Angular 2+, Blazor.
  • Experience with Hangfire or similar background job processing solutions.
  • Practical knowledge of Git.
  • Ability to analyze and troubleshoot existing applications.
  • Ability to understand an existing codebase and independently implement new features and changes.
  • Ability to communicate directly with the client, gather requirements and translate business needs into technical solutions.
  • High level of independence, ownership and problem-solving skills.
  • Ability to create and maintain technical documentation.
  • Experience with Microsoft Azure and at least some of the following services: Azure Storage, Azure Event Grid, Azure Functions, Azure AI Document Intelligence, Azure OpenAI.
  • Experience with designing or implementing solutions based on Azure OpenAI, LLMs or Generative AI will be a strong advantage.

Optional

  • MCTS: Microsoft SharePoint 2010, Application Development certification or an equivalent SharePoint development certification.
  • Experience integrating SharePoint solutions with external systems and Azure services.
  • Knowledge of software architecture and application integration patterns.

Your responsibilities

  • Designing and developing new features using .NET, SharePoint and web technologies.
  • Developing solutions using Azure services and AI technologies, including Azure OpenAI and Azure AI Document Intelligence.
  • Designing and implementing both backend and frontend components.
  • Maintaining and troubleshooting an existing solution based on SharePoint On-Premises.
  • Analyzing and resolving application, integration and data-related issues.
  • Working directly with the client to understand business needs and clarify requirements.
  • Translating business requirements into technical solutions and development tasks.
  • Participating in client meetings and technical discussions.
  • Proposing technical solutions and making implementation decisions.
  • Estimating and breaking down development tasks.
  • Taking ownership of features from requirements clarification through implementation and deployment.
  • Maintaining and continuously improving the existing solution.

About the project

We are looking for an experienced Fullstack .NET Developer to join a project focused primarily on the development of new features and further evolution of an existing business-critical platform.
The solution combines .NET, SharePoint On-Premises, modern web technologies and Microsoft Azure. An important part of the project is the development of new capabilities using AI services, including Azure OpenAI and Azure AI Document Intelligence.
This role offers a high level of independence and ownership. You will work closely with the Project Manager and directly with the client – discussing requirements, proposing technical solutions and taking features from initial idea through implementation to delivery.
The work is approximately 80% development of new functionalities and 20% maintenance, troubleshooting and bug fixing.

This is how we organize our work

This is how we work

in house
Company

What we offer

  • Opportunities for professional development (participation in training, conferences, mentoring, shadowing are just some of the tools that support our people’s growth)
  • Work with the largest Microsoft partner in Poland
  • Stable employment in a company that has been in the market for over 30 years
  • Hybrid or remote work model
  • Non-corporate environment with focus on high level of collaboration among teams and team members
  • Focus on integration – we meet for joint trips, picnics, play board games at work, and organize group outings
  • Benefits package – Multisport card, private medical care, life insurance, subsidies for English classes. Plus, fresh fruit every Wednesday and ice cream treats on Thursdays during the summer months!

Benefits

  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of foreign language classes
  • sharing the costs of professional training & courses
  • life insurance
  • remote work opportunities
  • flexible working time
  • fruits
  • corporate products and services at discounted prices
  • integration events

APN Promise S.A.

Promise Group is a leading Microsoft partner in CEE region, offering a wide range of products and services for clients from various economic sectors, including finance, telecommunications, media, energy, manufacturing, trade, services, public administration, education, and healthcare. The company has been operating since 1991 and, since 1996, has been the largest provider of Microsoft solutions in Poland. Promise Group specializes in software licensing optimization, IT systems design, implementation, maintenance, and business application development.

This is how we work

Fullstack .NET Developer
I apply to:
APN Promise S.A.
Warszawa, Mokotów
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