.Net React Developer (M/F)

Blue SoftParisEURESpublished 10/28/2026
Must-have:JavaScriptC#ReactAngularAzureFrontendBackendFullstackDevOpsCI/CD
Machine translation — original language: French.Show original

About the company

Blue Soft is looking for a Full Stack .NET / React Developer for a long-term mission for one of its major clients, a leading finance and investment bank.

The client is demanding, and that is what makes the mission interesting: you will work on a visible product with high quality standards.

Your tasks

Within the team, you will participate in the maintenance and evolution of the bank's economic and financial research publishing site. This site brings together intranet and extranet applications used internally and by the bank's clients.

Design and development

  • Develop back-end components in C# / .NET Core
  • Write SQL queries, views, and procedures (Transact-SQL)
  • Develop front-end interfaces in React.js
  • Implement automated integration tests
  • Apply design best practices (design patterns, maintainable code)

Support and continuous improvement

  • Provide support for the components you have developed
  • Participate in the maintenance and evolution of the software factory (Azure DevOps: CI/CD, pipelines)

Requirements

Technical environment

  • C#
  • .NET Core
  • SQL Server 2016/2022 (T-SQL)
  • React.js
  • Angular
  • JavaScript
  • Azure DevOps

Interested? Great, let's look at your profile together

  • Minimum 5 years of experience in Full Stack .NET development
  • You master .NET, React, and SQL. This trio is indispensable
  • You have already written advanced SQL (complex queries, views, optimization), and not just used an ORM
  • Knowledge of design best practices and automated testing
  • You have already worked with Azure DevOps or an equivalent CI/CD tool
  • You are rigorous, autonomous, and comfortable in a demanding environment

If you do not meet all of our criteria but are motivated and passionate, we will know how to support and train you.

How to apply

First step: a telephone or video interview with a member of the recruitment team, to get to know you better, understand your professional aspirations, and introduce the role. A second interview in person or via video with an expert, to evaluate your skills and discuss the challenges of the position. It is possible that you will take a test to evaluate your technical skills. And finally, we will get back to you with a proposal, if validated.

Other

  • Availability: ASAP or from November.
  • Location: Montrouge or Saint-Quentin-en-Yvelines - 2 days of remote work.
  • Languages: technical English minimum.
  • Mandatory: very good mastery of C# .Net and React.

Job details

  • Availability: ASAP or from November.
  • Location: Montrouge or Saint-Quentin-en-Yvelines - 2 days of remote work.
  • Languages: technical English minimum.
  • Mandatory: very good mastery of C# .Net and React.

Blue Soft cultivates a policy in favor of diversity and inclusion, guaranteeing equal opportunity through a recruitment process free from all forms of discrimination. To ensure no talent is missed, we encourage all types of profiles to apply! Do you know someone working at Blue Soft? We have a referral program, so make sure they refer you before applying!