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 Senior Backend Engineer to join our team. As an early-stage startup, we appreciate bright generalists who can iterate and ship quickly. In this role, you will:

Build and maintain scalable production services. We currently support thousands of QPS, and future systems will need to handle at least another order of magnitude.

Implement systems to monitor performance at the micro- and nano-second level

Drive ambitious engineering initiatives (for example, realtime data indexing at scale) from inception to completion: specification, architecture, implementation, testing, monitoring, and maintenance

Qualifications

Required

3+ years of experience building and maintaining production-grade software systems (preferably in Rust, C++, C, or Golang), with high-quality and well-documented production code

3+ years of experience with Unix systems

Experience working with cloud infrastructure, preferably AWS

Ability to make informed engineering decisions based on relevant business context

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

Experience working with blockchain technology, specifically Solana

Experience in quant trading or fintech

Proficiency in Rust