Madiff

.NET Developer (with AZURE)

Madiff  •  Warsaw, PL (Onsite)  •  5 months ago
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Job Description


We are looking for a
Senior .NET Developer
to support the backend development of a fast-scaling smart-shopping platform used by millions of users. The role focuses on building high-performance APIs, microservices, and Azure-based cloud components powering cashback, loyalty, and e-commerce functionalities in a modern fintech ecosystem.
Responsibilities:

  • Develop and maintain backend services using

.NET 8 and C#

  • Design and build RESTful APIs and microservices for high-traffic use cases

  • Integrate systems with third-party APIs and data providers

  • Work with
    Azure cloud services
    (App Services, Azure Functions, AKS, Blob Storage, Cosmos DB, etc.)

  • Implement unit and integration tests to ensure code quality and reliability

  • Work with Azure DevOps, Docker, and Git for CI/CD and version control

  • Collaborate with DevOps to optimise deployment pipelines and infrastructure

  • Participate in code reviews, architecture decisions, and sprint planning

  • Maintain documentation of backend architecture and API specifications


    • Requirements


    • Minimum 4–5 years of experience in backend development with

    C# and .NET (latest version .NET 8 preferred)

  • Proven experience designing scalable and secure
    REST APIs

  • Strong knowledge of
    Azure Cloud
    and microservices architecture

  • Experience with
    SQL
    (MS SQL Server, PostgreSQL) and ORM tools such as
    Entity Framework Core
    or
    Dapper

  • Familiarity with
    Azure DevOps
    , Docker containers, Git, and CI/CD pipelines

  • Good understanding of application security, error handling, and performance optimisation

  • Ability to work in Agile/Scrum teams and communicate with business and technical stakeholders

    • Nice to Have:

    • Experience with
      e-commerce
      ,
      affiliate marketing
      , or
      cashback platforms

    • Exposure to
      NoSQL
      solutions like Cosmos DB or MongoDB

    • Experience with
      Event-Driven Architecture
      , e.g. Azure Event Grid or Kafka

    • Familiarity with front-end technologies (React, Angular) for collaboration purposes


    Benefits


    • Work on a large-scale, high-impact product with strong market presence

    • Be part of a modern .NET development environment in a cloud-first organisation

    • Collaborate in a stable, secure fintech setting with the speed of a startup

    • Enjoy flexible working and ownership of your development responsibilities

    • Solid,
      competitive salary

    • Comprehensive healthcare

    • Flexible working model (1 day/month on'site in Warsaw)
    Madiff

    About Madiff

    We are an international Innovation, IT and high-tech engineering consulting company that delivers unique value in a wide variety of industries.

    Our mission is to add value to our customers businesses by providing digital and technological innovation services, delivering disruptive results and making our clients stand out in their market.

    We are driven by a creative and innovative consulting approach strongly oriented to getting results. We MAKE THE DIFFERENCE.

    Poland | UK | Switzerland | USA | Norway | Portugal | Spain | France | Singapore

    Warsaw

    Prosta 20

    Wrocław

    Rybacka 7

    Lublin

    Grottgera 2

    Industry
    IT & Software
    Company Size
    51-200 employees
    Headquarters
    Warszawa, PL
    Year Founded
    2015
    Website
    madiff.eu
    Social Media