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  3. Software Engineer - 2027 Interns
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Role description

Software Engineer - 2027 Interns

Ellipsis Labs logoEllipsis Labs
TypeInternship
WorkplaceHybrid
SeniorityIntern
Salary$120,000

Company info

Ellipsis Labs logo

Ellipsis Labs

Ellipsis Labs is a startup building differentiated products in decentralized finance, from first principles.

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.

Private companyProfitable
HQNew York City, United States
Size
Location
New York, NY
Posted3/26/2026
Engineering

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 software engineering summer interns to join our team in 2027. 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

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

Relevant archetypes

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2-10 employees
IndustryFinancial Services
Latest fundingOct 31, 2024
Investors
Haun Ventures

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