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Front Office Equity Markets Developer (Financial Math and IT) (M/F)

CTS CorporateParisEURESpublished 09/08/2026
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Must-have:PythonC#
Machine translation — original language: French.Show original

Within our IT consulting firm, we support the largest financial institutions and investment banks in the development of their critical business tools. We are looking for a Front Office Equity Markets Commando Developer to join a dedicated team positioned directly in the heart of the trading floor.

Reporting hierarchically to the Trading business line and installed alongside them, you will work in direct contact with the Trading and Financial Engineering teams, without intermediaries.

Your Missions: In a reactive and international environment, you will design, develop, and maintain high functional value-added applications for different geographical areas:

Prototyping and Exploration: Accompanying the business daily in the rapid creation of prototypes and data analysis via Python scripts and REST APIs.

Application Development: Directly gathering business needs, then designing and evolving strategic tools in C#, WPF, and Blazor (derivatives valuation, Market Data calibration, P and L explanation, backtesting).

Support and Proximity: Ensuring N1/N2 support, operational maintenance, and continuous evolution of applications on the trading floor.

International Harmonization: Ensuring the alignment and consistency of tools deployed to international teams.

Minimum education level: BAC+5 (Engineering Degree or Master 2)

Required experience: 8 years minimum in Financial Mathematics and .Net development

Required technical and functional skills:

  • Dual Math Fin / IT competence: Solid training (Bac+5 / Grande École) combining financial mathematics and software engineering.
  • Market Finance: Proven knowledge and experience in derivatives (ideally within the Equities / Equity Derivatives scope).
  • C# / .NET Development: Excellent mastery of the C# language, HMI frameworks (WPF, Blazor), and REST API design.
  • Prototyping: Good level of practice in Python for data exploration and the development of lightweight tools.

Languages and Soft Skills:

  • Fluent English: Daily exchanges are essential with teams and clients based abroad.
  • Communication and Adaptability: Excellent interpersonal skills, reactivity, and stress management are essential to evolve within a very dynamic trading floor.
  • Autonomy and ability for rapid iteration in direct contact with traders and structurers.