Ellipsis Labs is a profitable, venture-backed New York-based startup building differentiated products and infrastructure in decentralized finance.
The company is the developer of Phoenix, the leading order book spot exchange on the Solana blockchain, and a top 10 DEX (decentralized exchange) with >$70B in volume since inception in 2023. Additionally, we are one of the most active and prominent on-chain market makers in crypto.
All roles are in the Ellipsis Labs office in New York City.
Ellipsis Labs is seeking a Software Engineer — Campus (Intern & New Grad) 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 real product features and/or platform components across the stack, front end, back end, infra, or on-chain, based on your skills and interest
Own scoped projects end-to-end: problem definition → design → implementation → testing → deployment → monitoring
Collaborate with design and engineering to deliver fast, reliable, and secure experiences
Instrument and improve performance, reliability, and observability; write clear tests and documentation
Required
Hands-on experience building software (courses, personal projects, research, or internships) in one or more languages such as TypeScript/JavaScript, Python, Rust, Java, C/C++; you write clear, tested code
Solid CS fundamentals (data structures, algorithms, systems thinking) and familiarity with Git and basic debugging
Ability to make informed trade-offs with business context; high agency and a team-first mindset
Curiosity about DeFi/crypto (prior domain experience not required)
Preferred
Experience in one or more areas: full-stack web (React/Javascript), backend APIs/services, infrastructure/DevOps (Docker, CI/CD, cloud), or on-chain/low-level systems
Familiarity with blockchain technology (Solana a plus)
Interest or experience in fintech/trading
Rust or TypeScript proficiency
This posting covers both Intern (10–12 weeks) and New Grad (full-time) tracks. Indicate your preference when you apply.
Top Skills
What We Do
Ellipsis Labs is a venture-backed New York based startup building differentiated products in decentralized finance. Phoenix, our flagship protocol, is the leading orderbook spot exchange on the Solana blockchain.
Our commitment to creating sustainable solutions reflects our company's long-term approach and values. We take pride in our strong, in-person culture defined by our hard-working, mission-driven team.
