3A Software Development Internship – POC to replace Hibernate

Paris March 20, 2026 Full Time Workday

Murex is a global fintech leader in trading, risk management and processing solutions for capital markets.

Operating from our 19 offices, 3 400 Murexians from over 65 different nationalities ensure the development, implementation and support of our platform which is used by banks, asset managers, corporations and utilities, across the world. 

Join Murex and work on the challenges of an industry at the forefront of innovation and thrive in a people-centric environment. You’ll be part of one global team where you can learn fast and stay true to yourself.

 

Team & Context:

You’ll be part of the Datalayer team, a team of 8 people mainly based in Paris.

Our team is part of the Platform Technologies group which aims to address the technical and technological challenges of the MX.3 platform.

One of its goals is to provide the financial developers with robust and highly efficient SDKs to abstract the supported relational databases (Oracle, PostgreSQL, …) in both Java and C++.

The Java one heavily relies on the Hibernate third party which is a well-known JPA implementation.

Our problem is that the Hibernate upgrades have become increasingly more complex and costly, to a point where we’re now considering moving away from it…

This is a strategic objective for the company.

Missions:

As a Java Developer your mission will be to:

  • Assess the current usage of Hibernate in the MX.3 platform

  • Study other third parties that could replace Hibernate and do a Proof of Concept (POC) with the most promising one

  • Assess the cost of implementing the JPA specification internally as a replacement for Hibernate

  • Design and document a migration plan

Profile:

« Mandatory » skills:

  • Student (Bac+5, preferably from an engineering school) looking for a final internship of 6 months

  • Solid knowledge of Java, RDBMS and SQL

  • Autonomy, ability to work independently

  • Strong problem-solving mindset

  • Excellent written and oral communication in French and/or English

  • Team spirit and collaboration

« Nice to have » skills:  

  • Knowledge of JPA, ORM and Hibernate

  • Knowledge of version control tools (Git) and continuous integration tools (Jenkins)

Why join us ? 

By joining the DEV domain teams, you seize the unique opportunity to combine software publishing, capital markets, and cutting-edge development:

  • Be part of a community of experts motivated by challenges and innovation, contributing to the continuous improvement of the MX.3 platform

  • Benefit from quality onboarding training covering various functional, technical, and interpersonal skills

  • Grow in an agile, international, multicultural, and expanding environment 

Apply on company site

How to Get Hired at Murex

  • Murex is a privately held, founder-led French software house with roughly 3,000 employees and the dominant MX.3 platform serving 60+ of the world's 100 largest banks.
  • Hiring concentrates on Client Consultants, Software Developers, Quants, Financial Engineers, Business Analysts, Presales, Product Managers, and Support, with distinct tracks for consulting versus technology careers.
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