Ellipsis Labs

Senior Backend Engineer

New York, New York

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hirly's read of this role

Role family: Engineering
Seniority: Senior
Stated salary: $170,000 – $250,000 per year
Country: US
Work mode: On-site / unstated
First seen by hirly: 10 Sept 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

Ellipsis Labs is a profitable, venture-backed New York-based startup building sustainable and efficient DeFi protocols on high-throughput decentralized infrastructure. Our long-term goal is to build a better financial system.

Our flagship product, Phoenix Perpetuals, brings professional-grade perpetual futures to Solana. Building on our experience developing efficient markets, Ellipsis Labs also operates SolFi, a proprietary automated market maker that provides efficient liquidity for key trading pairs. Our foundational product, Phoenix Legacy, is a limit order book on the Solana blockchain that established our expertise in operating high-performance markets. Combined, these products have facilitated over $285B in trading volume across Solana markets.

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

Original posting on Ellipsis Labs's site ↗

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