Quant Developer / Quant Research Intern - 2026/2027

Anthelion Capital — Internship (Quant/Engineering)

Anthelion Capital is an investment and data science platform that augments its fundamental investment approach with data science to make investments across the capital structure. We are building a proprietary platform that supports the full investment lifecycle, from underwriting to portfolio management.

As an intern, you will work directly with our quant team on a real piece of that platform and help build the systems a systematic investment platform runs on.

No prior finance, credit, or trading experience is required. We hire for quantitative and engineering ability and teach the domain.

What You Might Work On (Matched to Your Strengths)

• Market or reference data ingestion with point-in-time correctness (no lookahead; as-of-date correct).
• Building and validating a candidate factor or risk model on the emerging platform, with an emphasis on robustness and out-of-sample validity.
• Contributing to the research-to-production path—tooling that promotes a signal to production via configuration rather than a full rewrite.
• Working on a component of the backtesting/simulation engine, the feature/signal store, or the portfolio optimizer.

We're Looking For

• Currently pursuing an undergraduate, master’s, or PhD in CS, math, statistics, physics, or a related quantitative field.
• Strong programming ability in Python (C++, Rust, or another language is a plus).
• Solid fundamentals in statistics and/or ML, along with a healthy skepticism of results that look too good.
• Evidence of building things and going deep, such as research, open source, competitive programming (ICPC/Codeforces), Kaggle, olympiads, or substantial personal projects.
• Nice to have: exposure to markets/investing, data engineering, orchestration tools (Dagster/Prefect), or cloud (Azure).

Logistics

12-week onsite internship with the following options: Fall 2026 (September–November), Winter 2026 (December–February), or Summer 2027 (June–August). Open to students graduating December 2026 through Summer 2028; PhD candidates with later graduation dates are also considered.

Compensation

$1,800–$2,000 per week depending on level of coursework. Strong interns are the primary source of full-time offers.

Location

Onsite, Midtown, New York City

Other

Must have U.S. work authorization or be able to use OPT during the time of the internship.