Madiff

Senior .NET Developer (with AZURE)

Madiff  •  Warsaw, PL (Remote)  •  1 month ago
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Job Description


We are looking for a Senior .NET Developer to join a high-scale smart-shopping and cashback platform serving millions of users. The role focuses on building and optimising backend services supporting cashback, loyalty, affiliate, and e-commerce functionalities within a modern Azure-based microservices environment.


This is a hands-on backend engineering role requiring strong experience with .NET, Azure Cloud, REST APIs, and scalable distributed systems operating in a high-traffic production environment.

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


  • Solid, competitive salary

  • Work in a multinational environment on international projects

  • Comprehensive healthcare

  • Long-term B2B contract with a stable project pipeline

  • Work model: fully remote (1-2 times/month
    in

    Warsaw)

  • 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
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
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