What are the responsibilities and job description for the Intern - Quantitative Developer position at StoneX Group Inc.?
Overview
Connecting clients to markets – and talent to opportunity
With 4,300 employees and over 400,000 retail and institutional clients from more than 80 offices spread across five continents, we’re a Fortune-100, Nasdaq-listed provider, connecting clients to the global markets – focusing on innovation, human connection, and providing world-class products and services to all types of investors.
At StoneX, we offer you the opportunity to be part of an institutional-grade financial services network that connects companies, organizations, and investors to the global markets ecosystem. As a team member, you'll benefit from our unique blend of digital platforms, comprehensive clearing and execution services, personalized high-touch support, and deep industry expertise. Elevate your career with us and make a significant impact in the world of global finance.
Business Segment Overview
Institutional : Immerse yourself in the best-in-class institutional-grade technology, working alongside industry experts and gaining exposure to various asset classes, such as equities, options, fixed income securities, and advanced trading, research, and management technology.
StoneX Internship
Are you looking to gain real world experience in an entrepreneurial culture? Consider an internship at a thriving global financial services firm and launch your career with StoneX ! A StoneX Internship will provide development, support, career growth, and an endless array of opportunities. You can expect to make an impact on the business and experience a career defining internship program.
Internship Perks:
In addition to the real-world experience, you’ll gain at StoneX, we’re excited to offer interns several perks which include the following:
Responsibilities include but are not limited to:
Ability to maintain confidentiality and appropriately handle sensitive information with tact and discretion
Sound verbal/written communication abilities
Effective interpersonal skills
Sense of urgency
Honesty, curiosity, and tenacity
Strong work ethic and emphasis on attention to detail
The confidence to fail
Early Careers Requirements
Pursuing a bachelor’s degree from an accredited university in a relevant program and graduating between December 2025 and August 2026 (entering penultimate year of university)
Available for a June 2025 start date for an 8 – 10-week program
Proficiency with Microsoft Office suite (preferably Excel)
Must be authorized to work in the US for any employer
Working environment :
Hiring Salary Range $20.00-$50.00 per hour (Salary to be determined by the education, experience, knowledge, skills and abilities of the applicant, internal equity and alignment with market data.)
Connecting clients to markets – and talent to opportunity
With 4,300 employees and over 400,000 retail and institutional clients from more than 80 offices spread across five continents, we’re a Fortune-100, Nasdaq-listed provider, connecting clients to the global markets – focusing on innovation, human connection, and providing world-class products and services to all types of investors.
At StoneX, we offer you the opportunity to be part of an institutional-grade financial services network that connects companies, organizations, and investors to the global markets ecosystem. As a team member, you'll benefit from our unique blend of digital platforms, comprehensive clearing and execution services, personalized high-touch support, and deep industry expertise. Elevate your career with us and make a significant impact in the world of global finance.
Business Segment Overview
Institutional : Immerse yourself in the best-in-class institutional-grade technology, working alongside industry experts and gaining exposure to various asset classes, such as equities, options, fixed income securities, and advanced trading, research, and management technology.
StoneX Internship
Are you looking to gain real world experience in an entrepreneurial culture? Consider an internship at a thriving global financial services firm and launch your career with StoneX ! A StoneX Internship will provide development, support, career growth, and an endless array of opportunities. You can expect to make an impact on the business and experience a career defining internship program.
Internship Perks:
In addition to the real-world experience, you’ll gain at StoneX, we’re excited to offer interns several perks which include the following:
- Compensation : All interns are paid at a competitive rate.
- Socials: Networking and acclimation to the company, office, and city are important aspects of the internship program. Socials and local favorites are planned at various points, with large events at the beginning and end of your internship.
- Access to Senior Leaders: Senior leaders are involved in the internship program from day one, delivering trainings, presenting on firm business, weekly leadership calls, and even attending socials.
- Training: Virtual and in-person trainings to get interns onboarded and connected with the company globally.
- Mentorship: Interns have a mentor and buddy to help answer any questions and work alongside during your internship.
Responsibilities include but are not limited to:
- Design, develop, and deploy efficient software solutions applicable to all fixed income trading desks.
- Maintain and develop back-end scripts as well as client/traders facing GUIs (web-based).
- Develop and maintain analytical libraries and tools to leverage both open source and proprietary numerical and statistical software packages.
- Integrate applications with cloud infrastructure providers to tackle storage and compute challenges across large datasets and parallel computations.
- Partner with investment professionals and quantitative researchers to define priorities, deliver custom software solutions, and improve the trading process.
- Receive structured learning on technical and quantitative skills.
- Build automated CDCI pipelines to support rapid but controlled transition from research to testing to production.
- Proficiency with Python/R programming languages; working knowledge of PANDAS and Dash is a plus.
- Strong Excel skills including experience with macros/VBA.
- Experience with Distributed Computing, Natural Language Processing, Machine Learning, Platform Development, Networking, System Design.
- Exceptional quantitative and analytical skills.
- Passion for technology, software development, and mathematics.
- Strong written and verbal communications skills.
- Masters or PhD Highly Preferred (Financial Engineering or related)
Ability to maintain confidentiality and appropriately handle sensitive information with tact and discretion
Sound verbal/written communication abilities
Effective interpersonal skills
Sense of urgency
Honesty, curiosity, and tenacity
Strong work ethic and emphasis on attention to detail
The confidence to fail
Early Careers Requirements
Pursuing a bachelor’s degree from an accredited university in a relevant program and graduating between December 2025 and August 2026 (entering penultimate year of university)
Available for a June 2025 start date for an 8 – 10-week program
Proficiency with Microsoft Office suite (preferably Excel)
Must be authorized to work in the US for any employer
Working environment :
- Hybrid (3-4 days)/In-office
Hiring Salary Range $20.00-$50.00 per hour (Salary to be determined by the education, experience, knowledge, skills and abilities of the applicant, internal equity and alignment with market data.)
Salary : $20 - $50
