Senior Software Engineer

Ellipsis Labs

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New York, New York Until 8/22/2026 H-1B sponsor history First posted March 20, 2025 Last posted March 20, 2025
Job description

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.

The Opportunity

Ellipsis Labs is seeking a Senior Software Engineer to join our team. In this role, you will:

  • Contribute to critical software systems at all parts of the stack

  • Design, develop, and deploy programs on the Solana blockchain

  • Maintain a high bar of security, correctness, and thoughtfulness around the code

  • Write high-quality, maintainable, well-tested code with thorough documentation

Qualifications

Required

  • Experience building software systems (preferably in Rust, C++, C, or Golang), with high-quality and well-documented production code

  • 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

  • Bachelor’s degree in Computer Science or related technical field or equivalent practical experience

  • Experience working with blockchain technology, preferably Solana

  • Experience working with Rust

Compensation (from employer):
$170K – $250K • Offers Equity

About this role

Summary

Design, develop, and deploy software on the Solana blockchain ensuring security and quality.

Job title

Senior Software Engineer

Experience level

senior level

Industry

software

Location requirements

New York, NY, on-site or remote possible

Salary

$170K – $250K

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

rustc++cgolangsoftware systems

Preferred skills

blockchainrust

Specializations

blockchainDeFiSolana
Locations

Structured locations inferred from the posting.

New York, NY, USA

Hybrid City