Tooling Engineer Intern – Capacity & Performance

Are you ready to shape the future of capital markets? We are looking for a Tooling Engineer Intern – Capacity & Performance to join the Capacity & Performance team. The position will be based in Paris, and start in July or September. You will report to the Head of Market and Tools Technology.

You will primarily be responsible for:

• Designing and implementing simple, user-friendly interfaces (UI, dashboards, tools) to enable users to select input data, choose analysis types and launch AI-driven processing

• Integrating front-end components with existing AI-based analysis logic and orchestrating workflows between UI, scripts and backend processing tools

• Contributing to the automation of analysis workflows and developing scripts to simplify tool execution and usage

• Ensuring tools are easy to use, reliable and reproducible, gathering feedback from users and iterating on improvements

• Providing clear and concise documentation for end users, ensuring deliverables are reusable for future automation phases

Your profile:

• Strong interest in AI tools, automation and software development

• Experience with VS Code, Python or similar scripting languages

• Basic front-end development skills (e.g. simple web apps, dashboards)

• Ability to design clean and intuitive user workflows

• Familiarity with prompting, large language model (LLM) usage, AI tooling orchestration and integration of AI into applications using MCP protocols

• Proficiency in English is required; proficiency in French or other languages spoken within Euronext markets (Portuguese, Italian, Dutch, etc.) is advantageous but not mandatory

• Knowledge of performance analysis, distributed systems or financial systems/market data is a plus

Join a company where market infrastructure is built on innovation – and where every innovation starts with a bold mind asking, “What’s next?”. At Euronext, we believe change is a starting point, not an obstacle. We look for people who see growth opportunities, think long term and want to help shape capital markets for future generations.

Working with us means:

• Being part of a European, international and diverse team – Collaborate across borders with talented colleagues connected by a shared ambition and purpose.

• Learning as you grow – Develop your skills through continuous learning, real responsibilities and flexible career paths that evolve with you.

• Having an impact – Contribute to projects that matter, in an agile and dynamic environment where your ideas help drive progress.

• Driving sustainability – Play an active role in building transparent, responsible and sustainable capital markets for the long term. Together, we do not just support markets – we help shape their future.

Apply by submitting a CV in English

The Capacity & Performance team is responsible for ensuring the stability, scalability and optimal performance of mission-critical exchange systems, including market data platforms, trading infrastructure and real-time processing systems. The team focuses on performance engineering and optimisation, capacity planning and forecasting, observability and monitoring, operational resilience and innovation in monitoring and automation.

Join Euronext – Shape capital markets for future generations
Euronext is the leading European capital market covering the entire capital markets value chain, from listing, trading, clearing, settlement and custody, to solutions for issuers and investors. We operate seven national stock exchanges, handling 25% of European lit equity trading. Our products include equities, FX, ETFs, bonds, derivatives, commodities and indices. Euronext also provides clearing and settlement services through Euronext Clearing and our network of Euronext Securities CSDs. In addition, Euronext runs MTS, one of Europe’s leading electronic fixed income trading markets, and Nord Pool, the European power market. The company has a diverse domestic and international client base.
Find out more about us at: Euronext.com