---
title: 'Summer Intern 2027 - Quantitative Researcher (PhD) at Five Rings LLC - Careers'
canonical: 'https://feeny.ai/job/summer-intern-2027-quantitative-researcher-phd-five-rings-llc-careers-new-york-0hy3xj8va5wr'
type: 'job'
last_seen: '2026-09-12'
---

# Summer Intern 2027 - Quantitative Researcher (PhD) at Five Rings LLC - Careers

- **Company:** Five Rings LLC - Careers
- **Location:** New York, NY
- **Posted:** 2026-07-14
- **Last confirmed live:** 2026-09-12
- **Apply:** https://job-boards.greenhouse.io/fiveringsllc/jobs/5349219008

## Job description

## About Five Rings

Five Rings is a proprietary trading firm founded with a vision of combining strategy, innovation and technology to succeed in today’s global markets. With offices in New York, Boca Raton, London and Amsterdam, Five Rings trades in various domestic and international markets, both established and esoteric. Our team constantly seeks new opportunities, analyzes their risks and rewards, and creates strategies and tools to capitalize on them.

We have an open culture and encourage the flow of knowledge and ideas between all areas of the firm.

## About the Program

Five Rings offers an intensive 9 week summer internship program that runs from the beginning of June through the beginning of August. The program includes immersion in hands-on projects, classroom instruction, and in-house built strategy games. Interns will work closely with the research team on development projects. You will have a mentor fully dedicated to you during the internship.

You will take part in a series of talks to introduce you to key trading concepts. We also offer a variety of activities such as strategic game nights, nights out in NY, dinners, and so much more.

## About You

- Must be working towards a PhD in computer science, mathematics, physics, statistics, economics, or another qualifying field
- Exceptional at math and with other quantitative skills
- Has a hunger to work on some of the most complex mathematical problems we find
- Must enjoy problem solving as this is at the forefront of the role
- Enjoys initiating/acting on a thought or idea as soon as it comes to mind
- Proven track record of success within candidates field of specialty
- Excited to work as a team, but also comfortable testing ideas independently
- Must have basic programming experience through internships or academia
- Meticulous and detail-oriented
- Eager to learn

Annual Base Salary: $300,000. Additionally, interns receive a sign on bonus and corporate housing.

## About Five Rings LLC - Careers

## Company Overview
- **One-liner**: Five Rings is a proprietary trading firm that combines strategy, innovation, and technology to identify and capitalize on opportunities across global markets.
- **Entity Type**: Private (bootstrapped – no outside investors or clients)
- **Headquarters**: New York, NY, United States (with offices in London, Amsterdam, and Boca Raton)
- **Founded**: Not publicly available
- **Founders**: Not publicly available

## Core Business
- Primary industry: Proprietary trading (financial services)
- Target customers: None – the firm trades exclusively for its own account; no external clients
- Mission/purpose: “Find them first and profit from them quickly” – constantly seeking new opportunities, analyzing risks/rewards, and creating strategies and tools to capitalize on them

## Products & Services
- **Proprietary Trading Strategies**: In-house developed algorithms and models executed across established and esoteric markets (domestic and international).
- **Trading Systems Technology**: Custom low-latency trading infrastructure built on C++, Python, and Linux, designed for rapid iteration (insight to implementation often within days or weeks).

## Market Standing
- **Valuation**: Not disclosed (privately held, no external investors)
- **Key Metric**: 229 employees (LinkedIn, as of mid-2026)
- **Notable Investors/Partners**: No external investors or partners; the firm is entirely self-funded.
- **Growth Signals**: Operates in 7 countries (US, UK, Netherlands, Poland, Croatia, India, Brazil); 4 offices; active recruiting for multiple roles (Quantitative Trader, Software Developer, Trading Operations Engineer, etc.); sponsors a summer Trading Systems Development Intensive Program for sophomores [fiverings.com](https://fiverings.com/) | [LinkedIn](https://www.linkedin.com/company/fiverings)

## Competitive Advantages
- **Team-first meritocracy**: Flat structure, open culture, and collaboration among quants, developers, and traders.
- **Strong mentorship**: Experienced traders and developers provide extensive hands-on and classroom training.
- **Speed of execution**: Strategies move from insight to implementation within days or weeks, not months.
- **Compensation**: Competitive packages that reflect the firm’s belief that talent drives success (LinkedIn reports high compensation ratings – 4.3/5.0 for compensation).

## Strategic Focus
- Continue expanding into multiple markets (domestic and international, established and esoteric).
- Invest heavily in technology and quantitative research to maintain an edge in speed and analytics.
- Recruit top analytical talent from universities and competitors (top sources: MIT, University of Pennsylvania, Jane Street, Meta).

## Why Work Here
- **Culture**: Casual atmosphere, flat hierarchy, and a focus on collaboration and mentoring. Described as an “open and fun culture” where ideas flow freely [fiverings.com/team](https://fiverings.com/team/).
- **Work environment**: Full-time, in-office presence expected (trading floor setting). Offices in New York, London, Amsterdam.
- **Perks**: Great benefits, educational priorities (classroom training on top of hands-on work), summer internship program with social events, and a recent “National Intern Day” celebration with an ice cream cart. Employee reviews give culture 3.9/5.0 and career opportunities 3.2/5.0 [LinkedIn](https://www.linkedin.com/company/fiverings).
- **Engineering focus**: Software developers work on cutting-edge trading systems using C++23, Python, distributed systems, and low-latency networking. The firm runs a dedicated “Trading Systems Development Intensive” program for sophomores [Greenhouse job board](https://job-boards.greenhouse.io/fiveringsllc/jobs/4988120008).

## Sources
1. [fiverings.com](https://fiverings.com/)
2. [fiverings.com/team](https://fiverings.com/team/)
3. [LinkedIn](https://www.linkedin.com/company/fiverings)
4. [Greenhouse careers page](https://job-boards.greenhouse.io/fiveringsllc)

## Other roles at Five Rings LLC - Careers

- [Experienced/Lateral – Legal Associate](https://feeny.ai/job/experienced-lateral-legal-associate-five-rings-llc-careers-new-york-azzkqda5hxzk) — New York, NY
- [LINK 2027: Software Development Intensive Program](https://feeny.ai/job/link-2027-software-development-intensive-program-five-rings-llc-careers-new-york-j3x46w7t1jat) — New York, NY
- [Campus Full Time 2027 - Quantitative Trader](https://feeny.ai/job/campus-full-time-2027-quantitative-trader-five-rings-llc-careers-new-york-6g1rps2p97fb) — New York, NY
- [Campus Full Time 2027 - Software Developer - London](https://feeny.ai/job/campus-full-time-2027-software-developer-london-five-rings-llc-careers-london-8s1sxdtgbcmv) — London, United Kingdom
- [Campus Full Time 2027 - Quantitative Trader - Amsterdam](https://feeny.ai/job/campus-full-time-2027-quantitative-trader-amsterdam-five-rings-llc-careers-m5y1zgt7cwgf) — Amsterdam, Netherlands
- [Campus Full Time 2027 - Software Developer](https://feeny.ai/job/campus-full-time-2027-software-developer-five-rings-llc-careers-new-york-jjk8p1zes4s3) — New York, NY
- [Summer Intern 2027 - Software Developer](https://feeny.ai/job/summer-intern-2027-software-developer-five-rings-llc-careers-new-york-hnhtkd9xxt1d) — New York, NY
- [Campus Full Time 2027 - Quantitative Trader - London](https://feeny.ai/job/campus-full-time-2027-quantitative-trader-london-five-rings-llc-careers-london-fbb5nbedrqfn) — London, United Kingdom
- [Summer Intern 2027 - Quantitative Trader](https://feeny.ai/job/summer-intern-2027-quantitative-trader-five-rings-llc-careers-new-york-071tsv8545sw) — New York, NY
- [Recent Graduate - Trading Assistant (NYC)](https://feeny.ai/job/recent-graduate-trading-assistant-nyc-five-rings-llc-careers-new-york-81jjn7qy8nag) — New York, NY