via indeed · 5 juin 2026 ·il y a 8 jours

Internship - 6 months - Quantitative Analyst Securitization F/W

Natixis
Paris Stage
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Company Description
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Natixis Corporate \& Investment Banking is a leading global financial institution that provides advisory, investment banking, financing, corporate banking and capital markets services to corporations, financial institutions, financial sponsors and sovereign and supranational organizations worldwide.

Our teams of experts in close to 30 countries advise clients on their strategic development, helping them to grow and transform their businesses, and maximize their positive impact. Natixis CIB is committed to aligning its financing portfolio with a carbon neutrality path by 2050 while helping its clients reduce the environmental impact of their business.

As part of Groupe BPCE, the second largest banking group in France through the Banque Populaire and Caisse d’Epargne retail networks, Natixis CIB benefits from the Group’s financial strength and solid financial ratings (Standard \& Poor's: A\+, Moody's: A1, Fitch Ratings: A\+, R\&I: A\+).

Job Description
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POSITION AND MISSIONS
You are joining the Portfolio Analytics \& Insights team within Natixis' Credit Portfolio and Resources Management at CIB, which is looking for a Intern Quantitative Analyst Securitization for a internship of 6 months from July 2026\.
In collaboration with your tutor, your main tasks will be:

  • Selecting and analyzing reference portfolios (regulatory filters, granularity, concentration);

  • Calibrate slice parameters: thickness, subordination, amortization;

  • Model the dynamic evolution of the portfolio and tranches over time;

  • Simulating defects and losses (analytical and Monte\-Carlo approaches);

  • Test and calculate regulatory: capital requirements, risk transfer ratios, profitability;

  • Carry out stress tests and sensitivity analyses.
You will also contribute to the team’s cross\-functional topics: portfolio data analysis, reporting and visualization, process automation.

You work in an international environment, within a community of experts who place excellence, impact and collective action at the heart of everything they do.

\#Transformative finance

As a Top Employer, we place our employees at the center of our attention. Internal mobility, career development and training programs allow you to grow and flourish throughout your journey.

You evolve in an inclusive and collaborative work environment that will give you every opportunity to succeed in this new mission.

You also have the opportunity to engage in favor of society and causes that are important to you through our corporate foundation.

You receive an internship allowance based on your training and level of education, also a refund of your transport ticket up to 60%, one day of authorized absence paid for each month worked and access to the company’s restaurant.

Required Skills/Qualifications/Experience
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As a BAC \+4/5 level student, you are preparing a course in business school or engineering school with a specialization in financial engineering, quantitative analysis, or computer science.

You have expertise in market finance and credit risk (rating, PdG, expected losses), and you know how to apply probabilistic modeling and simulations (Monte\-Carlo, stress tests);

You are proficient in programming in Python and/or C\#, with skills in software development, SQL queries, and use of AI\-agentics tools (CLI, agent/skills management);

You demonstrate great analytical rigor, a practical sense for designing operational tools, and possess excellent interpersonal skills.

And last but not least, you are perfectly fluent in English.

You will be contacted by one of our recruiters before meeting our business experts. An ideal moment of exchange to highlight your personality and your project.

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