INTERNSHIP 2027 – Software Engineer C++

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:

At Murex, Software Engineers design, develop and maintainthe technologies that power the MX.3 platform, used by financial institutions worldwide.

Our C++ engineers work on technical components at the core of the platform. Their projects cover areas such as low-level development, programming languages, distributed systems, performance, observability, software reliabilityand developer tooling.

Joining this internship means becoming part of a community of experienced engineers working on challenging software development topics. You will contribute to a concrete technical project while gaining hands-on experience with the architecture and development of a large-scale financial software platform.

Your missions / What you’lldo?

Following an onboarding program covering software engineering practices and the MX.3 platform, you will contribute to a project with direct technical impact. Depending on your assignment, you may:

• Design, develop and test software components in C++;

• Analyze existing code, execution flows and technical architectures;

• Improve the robustness, readability, performanceand maintainability of existing solutions;

• Contribute to low-level development and algorithmic topics;

• Enhance monitoring, diagnosticsand troubleshooting capabilities;

• Work on programming language features, compilersor static analysis mechanisms;

• Collaborate closelywith software engineers, architectsand product experts;

• Document your approach and present your findings and solutions to technical stakeholders.

A glimpse of the topics you could work on:

Our interns contribute to a variety of technical initiatives across the Software Engineering perimeter.

The topics you could work on include:

• The evolution of observability capabilities within the MX.3 platform, including the implementation of consistent metrics, logsand traces;

• The adoption of modern instrumentation standards such as OpenTelemetry;

• The propagation of contextual information across execution flows;

• The development and evolution of proprietary programming languages used within MX.3;

• The implementation of new language features, including stronger static typing mechanisms;

• Semantic analysis and compiler improvements designed to detect inconsistencies before execution;

• Monitoring, troubleshootingand diagnostic tools supporting platform reliability;

• Improvements to software quality, maintainabilityand developer experience.

Each internship assignment is built around a real technical challenge and provides hands-on exposure to software engineering within the capital marketstechnology industry.

Your profile / Who you are?

• Final-year student from an Engineering School or equivalent Master’s degree in Computer Science, Software Engineering or a related field;

• Good programming skills in C++ and a strong interest in complex software systems;

• Interested in low-level development, algorithmsand challenging technical topics;

• Curious, analyticaland eager to understand how software components interact;

• Strong problem-solving skills;

• Team-oriented, with a proactive and autonomous mindset;

• Good communicationand documentation skills;

• Fluency in English is required.

Why joiningus?

This internship offers a unique opportunity to contribute to the development of a large-scale software platform used by financial institutions worldwide.

You will tackle concrete engineering challenges, strengthen your C++ development skills, gain exposure to areas such as observability, static analysisor compiler design, and grow alongside experienced software engineers in an international and multicultural environment where learning is part of everyday life.

Additional Information

• Location: Paris, France

• Duration: 6 months