Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Software Engineer

Full-time

Ellipsis Labs

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.

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
Vacancy posted 14 days ago
Similar jobs that could be interesting for youBased on the Senior Software Engineer in New York, NY vacancy
  •  ...Job Description Senior Software Engineer is a temporary remote opportunity with our client, an online marketplace. You’ll build and refine full-stack web experiences that make buyer discovery easier while improving performance and architecture. The role also helps... 
    Senior
    Temporary work
    Remote work

    Onward Search

    New York, NY
    3 days ago
  • Find a JobJoin IDR Internal TeamStaffing ServicesConsultantsAbout UsBlog
    Senior

    IDR Internal Data Resources

    New York, NY
    5 days ago
  •  ...Quant Trading firm is looking for a Software Developer to work on electronic trading connectivity infrastructure and high-impact systems that handle order flow across major global markets. You will design, develop, and maintain systems that support electronic order... 
    Senior
    Full time

    C2R Ventures

    New York, NY
    4 days ago
  •  ...About the job A leading quantitative hedge fund is seeking a Senior Infrastructure Software Engineer to design and build the core platforms powering its global research and trading environment. You'll work on technically challenging problems across distributed systems,... 
    Senior
    Full time

    Acquire Me

    New York, NY
    1 day ago
  • Job Description:• 5+ years of hands-on experience in Java development, with at least 1 years in amentoring capacity.• Expert-level proficiency in Core Java (JSE), including deep knowledge of JVM tuning,concurrency, and memory management (a must-have requirement).• 3+ years...
    Senior

    Virtusa

    New York, NY
    2 days ago
  •  ...Software Engineer / Sr. Software Engineer Atomic · NYC, Boston, Austin, or Reno; remote positions also available The Company Most companies still plan their supply chains (quantities, mix, allocations, timing, etc.) in spreadsheets or legacy software. Atomic... 
    Senior
    Remote work

    Atomic

    New York, NY
    a month ago
  •  ...platform and developer tooling ecosystem. Our platform enables engineers to validate, review, govern, and automate API quality using AI...  ...about developer productivity, command-line tooling, software distribution, observability, and telemetry. You should be equally... 
    Senior

    EPAM Systems

    New York, NY
    1 day ago
  • $280k

     ...Senior Software Engineer (Go) Compensation : Up to $280K + equity Location : New York, NYC, On-site Industry : Fintech AI / Series B Who you’ll join A growth-stage fintech building an AI-driven investment research platform used to make decisions involving... 
    Senior
    Full time
    Work at office

    Open Select

    New York, NY
    1 day ago
  •  ...enterprise commerce industry. They are based in New York City, NY and are currently staffing in their Software Engineering Team. They are currently seeking a Senior Backend Software Engineer to help build and scale their core product. Qualified candidates will have 5... 
    Senior
    Full time
    Immediate start

    The Cypress Group

    New York, NY
    3 days ago
  •  ...inflection point as the company gains momentum and prepares for its next phase of growth. What We’re Looking For Strong backend engineer with experience building and owning production APIs Hands-on experience integrating third-party APIs and external systems... 
    Senior
    Full time
    Casual work

    Ponderosa Talent Group

    New York, NY
    1 day ago
  •  ...unified platform that replaces fragmented software, manual workflows, and disconnected...  ...highly collaborative team, which means engineers at Swish Labs have meaningful ownership....  ...platform. The Role We’re looking for a Senior Backend Engineer to help build the core... 
    Senior
    Full time
    Work at office

    Swish Labs

    New York, NY
    1 day ago
  • $150k - $250k

     ...Senior Software Engineer (Data) - $150k - $250k Base ($200k - $400k TC) – NYC/ Chicago/ London (Hybrid) – Prop Trading Overview We are currently partnered with a leading global proprietary trading firm seeking an experienced Senior Software Engineer (Data) to join... 
    Senior

    Intec Select

    New York, NY
    19 hours ago
  • $190k - $260k

     ...Senior Software Engineer | FinTech | NYC Location: New York City, 4 days onsite Salary: $190,000–$260,000 + equity I’m working with a fast-growing FinTech company in NYC looking for a Senior Software Engineer to join its core product engineering team.... 
    Senior
    Full time

    Nextech Group Limited

    New York, NY
    5 days ago
  •  ...Senior / Staff Software Engineer | Series A Startups | NYC Location: New York City Experience: Senior to Staff Level Company Stage: Seed to Series A Opportunity: Shortlist NYC — October 26, 2026 Meet six startup founders. Unlock your next opportunity... 
    Senior

    The Shortlist NY

    New York, NY
    1 day ago
  • $160k - $200k

     ...The Role We're looking for an experienced, hands-on Senior Software Engineer to join our US engineering team at Wematch. Working closely with our US Tech Lead in our New York office, you'll play a key role in building, improving, and maintaining our trading platforms... 
    Senior
    Full time
    Work at office

    Wematch.live

    New York, NY
    3 days ago
  •  ...Our financial industry client is looking for a Senior Software Developer to join its technology team supporting trade processing and post-trade operations. The role sits alongside trading, middle office, and operations groups handling a diverse book of equity, fixed income... 
    Senior
    Full time
    Work at office

    Cleartech Recruiting

    New York, NY
    5 days ago
  •  ...Our client is a Computer Vision & AI powered software company headquarted in New York City. They are currently looking for a Senior Full-Stack Software Engineer for their core product development team. The role is hybrid on-site 3-4 days / week in Midtown Manhattan.... 
    Senior
    Immediate start
    3 days per week

    The Cypress Group

    New York, NY
    7 days ago
  • $180k - $280k

     ...Senior Software Engineer, Fullstack or Backend Leaning Manhattan, onsite $180,000 - $280,000 + equity Seed stage, About the Company A venture-backed, AI-native startup building software for complex, highly regulated industries. Their customers are large... 
    Senior
    Full time

    twentyAI

    New York, NY
    1 day ago
  • $185k - $225k

     ...Senior Software Engineer (Fullstack) AI-Driven Healthcare Automation Onsite in NYC $185k - $225k base + equity We are working with a rapidly growing AI-native healthcare company transforming how healthcare organisations manage patient communication and administrative... 
    Senior
    Full time

    Storm3

    New York, NY
    1 day ago
  •  ...backed by top-tier VCs, and are looking to grow their engineering team! They are looking for Senior Full Stack Engineers who want to own entire product...  ...GPs and LPs. Requirements: ~6+ years of hands-on software engineering experience, comfortable across the full stack... 
    Senior
    Full time
    Currently hiring

    Trinnovo Group | B Corp™

    New York, NY
    4 days ago
  •  ...Senior Software Engineer | AI Startup | NYC Primis is partnered with a well-funded, early-stage AI startup in NYC building intelligent fraud detection software. ARR is growing fast, they have enterprise logos, and they're backed by strong institutional investors... 
    Senior
    Full time

    Primis

    New York, NY
    1 day ago
  • $188k - $242k

     ...driving it to completion. This is a senior individual contributor role on Shared Services...  ...shared capabilities across Justworks engineering, so product teams can build on reliable,...  ...~5+ years of professional software engineering experience ~2+ years of hands... 
    Senior
    Casual work
    Work at office
    Local area

    Justworks

    New York, NY
    2 days ago
  •  ...We are seeking a highly experienced Senior Software Engineer with deep expertise in Python, Microsoft Azure, distributed systems, and production-grade AI applications . The ideal candidate has hands-on experience building, deploying, maintaining, and troubleshooting... 
    Senior
    Full time

    BrickRed Systems

    New York, NY
    3 days ago
  •  ...Senior Software Engineer In TestWe're looking for a Senior Software Engineer in Test who brings a builder's mindset to quality engineering. You'll be a hands-on senior engineer and mentor who helps shape our test automation strategy alongside our Principal Software Engineer... 
    Senior
    Remote work
    Flexible hours
    Shift work

    Akoya

    New York, NY
    5 days ago
  •  ...clinical care, dedicated care navigation, and purpose-built software. They collaborate directly with health systems,...  ...That is the core mission. The Role We are hiring senior- and staff-level product engineers who want to deploy high-leverage technology against a... 
    Senior
    Full time
    Immediate start
    Shift work

    Dynamics Solutions, LLC.

    New York, NY
    1 day ago
  • $200k - $260k

     ...Senior Software Engineer Location: Manhattan, NYC (On-site) Base Salary: $200,000–$260,000 + Meaningful Equity About the Company An early-stage, venture-backed healthcare AI startup building next-generation technology to transform how healthcare organizations... 
    Senior
    Full time

    Stealth Startup

    New York, NY
    1 day ago
  • We are seeking a highly skilled and passionate C++ Developer to join our team and help build and expand applications as needed by the business expansion and client needs. Your primary responsibility will be to design, develop, and maintain efficient, reusable, and reliable...
    Senior

    Cantor Fitzgerald

    New York, NY
    3 days ago
  • $47 - $82 per hour

     ...prioritization, vendor coordination, and delivery execution. Mentor engineers and help promote consistent engineering practices across the...  ...technical and business teams. ~ Experience across the software development lifecycle, including design, development, review,... 
    Senior
    Hourly pay

    Horizontal Talent

    New York, NY
    2 days ago
  • $146k - $157k

     ...Senior Software Engineer In TestOwn end-to-end quality verification and validation for complex systems, from design through production. Help shape how verification and validation standards evolve as our engineering model matures. Remote-first opportunity for US-based... 
    Senior
    Contract work
    Casual work
    Work at office
    Remote work
    Flexible hours

    Quadpay, A Zip Company

    New York, NY
    5 days ago
  • $180k - $200k

     ...Product Engineer, Full Stack (Healthtech, NYC) New York, $180K to $200K base plus equity I'm working with a fast-growing, VC-backed...  ...Code. What they're looking for ~2 to 6 years building software, with features you've owned from start to finish ~ Time at a... 
    Senior
    Full time
    Work at office
    Work from home
    Visa sponsorship
    Flexible hours

    Submittd Talent

    New York, NY
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Software Engineer. Be the first to apply!