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C# Developer - M/F/D

Societe Generale

Societe Generale

Software Engineering
Warsaw, Poland
Posted on Jan 5, 2026

Responsibilities

Our Fixed income Forex & Commodities (FIC) division is part of the Global Business Service Unit in Société Générale. We support a wide range of activities, from booking and pricing to contribution and full front-to-back processes for Fixed Income, Currencies, and Commodities products.

The Trading Tool team is responsible for developing and maintaining front-office trading applications that are used daily by traders for market making.

As a C# Developer you will play a vital role in the full software development life cycle (SDLC) - designing, building, testing, and deploying high-performance applications. You will work closely with a distributed team (based in France and Poland) in a fast-paced, collaborative environment were English is the main working language.

Your future scope of responsibility will cover:

  • Building, delivering, and running applications, using craftsmanship and best coding practices

  • Developing and supporting features in a functional application chain

  • Breaking down technical and functional requirements into detailed user stories and collaborating closely with the product owner and business analysts

  • Delivering and supporting the application via continuous delivery (DevOps)

  • Writing unit tests, reviewing the code to be delivered and contributing to non-regression testing

  • Maintaining and improving production support for existing features

  • Recommending and implementing process and performance improvements

  • Providing clear, consistent updates to clients and management

  • Working with the following tech stack: C#, .NET, .NET Framework, ElasticSearch, WPF, MS SQL / PostgreSQL, REST WebAPI, Github, Jenkins, TeamCity, RabbitMQ, Kafka. Methodologies: Agile, TDD

Some milestones to be expected this year:

  • Migration to .NET8

  • Opportunistic migration from heavy client to REST API & web User Interface