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Backend DevelopmentHybrid

Software Engineer (C# / C++ / Java)

twentyAI - Company

Paris, Ile-de-France, ๐Ÿ‡ซ๐Ÿ‡ท FranceContract - Mid level (2-4 years)0 applicantsCloses Jun 16, 2026

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Job description

Job details

  • Location: Paris, Ile-de-France
  • Work mode: Hybrid
  • Employment type: Contract (Not an internship)
  • Salary: Salary details are available in the employer description.

Role overview

Join twentyAIโ€™s Credit & FX technology team to support critical trading applications. Youโ€™ll collaborate with Product Managers to build features, migrate services to Azure, and maintain high-performance systems.

Job details

Paris, Ile-de-France โ€“ Hybrid (2 days onsite). 6-month contract, likely to extend. Start ASAP. Salary details available upon contact.

Responsibilities

  • Develop and enhance trading applications for Credit & FX markets
  • Migrate legacy services to Azure cloud architecture
  • Collaborate with Product Managers to implement new requirements

Requirements

  • Proficiency in C#, C++, and Java programming
  • Experience with cloud infrastructure (Azure preferred)
  • Understanding of financial trading systems and workflows

Benefits

  • Hybrid work model (2 days onsite in Paris)
  • Potential for contract extension
  • Opportunity to work on mission-critical financial systems

Keywords

C#C++JavaAzureCredit & FXCloud migrationTrading systemsBackend development