Ellipsis Labs is a profitable, venture-backed New York startup building performant DeFi protocols on high-throughput decentralized infrastructure. Our long-term mission is to build a more efficient, transparent, and fair financial system.

Our flagship product, Phoenix Perpetuals, brings professional-grade perpetual futures to Solana. Phoenix has processed over $4 billion in trading volume and is growing 20% month over month, adding to the more than $300 billion our products have facilitated to date. Behind Phoenix is a lean, high-caliber team with experience at top trading firms, blockchain companies, and tech companies.

Ellipsis Labs is seeking a Quantitative Developer - Risk to join our team. You'll take ownership of how we manage risk across the platform, from setting the parameters that keep our markets safe to building the infrastructure that lets us list new assets faster and support entirely new asset classes. In this role, you will:

• Maintain and improve the core on-chain margin engine and offchain risk services

• Own and maintain risk parameters across our supported assets, ensuring they reflect current market conditions and platform risk tolerance

• Support the end-to-end process of listing new assets, including scoping and implementing the unique risk considerations each asset requires

• Design and build the risk framework for emerging asset classes

• Build tooling and infrastructure that make risk management scalable

• Independently scope and drive large, ambiguous projects from specification through production, partnering closely with trading, engineering, and research

Qualifications

Required

• A strong quantitative foundation (degree or equivalent experience in math, statistics, physics, engineering, computer science, or a related field) with demonstrated quant interest and aptitude, e.g., economic or financial modeling

• Experience building and shipping production software, not solely research or analysis

• Ability to make informed decisions independently and drive projects to completion with minimal oversight

• A demonstrated track record of high agency, willingness to dive into unfamiliar technical and non-technical areas, and a team-first attitude

• Passion for decentralized finance

Preferred

• 3+ years of relevant experience (quant trading, quantitative research, risk management, or software engineering with a strong quant bend); exceptional new graduates from top-tier programs will also be considered

• Experience working with blockchain technology, specifically Solana

• Background in quantitative or prop trading, particularly with derivatives, perpetual futures, or options

• Familiarity with pre-IPO or private market funding structures

• Proficiency in Rust