Software Engineer - 2027 Interns
Ellipsislabs · New York, New York
About this role
## Ellipsis Labs — Software Engineer (2027 Interns) Ellipsis Labs is a profitable, venture-backed New York-based startup building sustainable and efficient DeFi protocols on high-throughput decentralized infrastructure. Our flagship product, **Phoenix Perpetuals**, brings professional-grade perpetual futures to **Solana**. We also operate **SolFi**, a proprietary automated market maker, and **Phoenix Legacy**, a limit order book on Solana. We’re seeking **software engineering summer interns** to join our team in **2027**. As an early-stage startup, we value bright generalists who can iterate and ship quickly. --- ### What you’ll do - Build real product features and/or platform components across the stack (front end, back end, infra, or on-chain), based on your skills and interests - 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 --- ### Qualifications **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
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