Quantitative Algo Trading Intern — Market Making & Execution

Natixis; Paris; Hybrid; EUR 12,000 - 20,000; Full time

Benefits offered by this job

Internship allowance

60% transport reimbursement

1 paid day of leave per month

Company restaurant access

Works council access

Job summary

Natixis Corporate & Investment Banking in Paris invites applications for a 6-month Quantitative Algo Trading Internship starting January 2027. The role sits within the Rates trading desk and blends autonomous research with daily desk operations.

You will work on microstructure, fill probabilities, order-flow, and adaptive execution decisions. The project targets a robust, real-time execution policy across futures and bonds with exposure to risk, latency, and P&L considerations.

Qualifications

• Strong background in quantitative methods and finance.
• Experience with programming languages (C# or C++).
• Familiarity with market microstructure is a plus.

Responsibilities

• Model the probability of filling passive orders.
• Estimate expected cost of waiting and measure order-book imbalance.
• Estimate short-term price dynamics and market impact.
• Decide between passive, aggressive or waiting execution.
• Dynamically adjust aggressiveness based on time and size.
• Contribute to monitoring of execution algorithms in production.

Skills

Probability & statistics

Optimization

Stochastic processes

Programming

Numerical analysis

Market microstructure

Quantitative problem formulation

C# / C++

Education

Bac+5 or equivalent quantitative program

Job description

Natixis Corporate & Investment Banking in Paris invites applications for a 6-month Quantitative Algo Trading Internship starting January 2027. The role sits within the Rates trading desk and blends autonomous research with daily desk operations.

You will work on microstructure, fill probabilities, order-flow, and adaptive execution decisions. The project targets a robust, real-time execution policy across futures and bonds with exposure to risk, latency, and P&L considerations.