Senior Software Engineer, Onchain (Frontend) jobs in United States
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Gemini · 1 day ago

Senior Software Engineer, Onchain (Frontend)

positionNew York, NY
timeFull-time
remoteHybrid
senioritySenior Level
money$140K/yr - $200K/yr
date5+ years exp

Gemini is a global crypto and Web3 platform aiming to reshape the financial system. The Senior Software Engineer will enhance blockchain-based products, drive innovation, and mentor junior engineers while focusing on user experience and operational excellence.

CryptocurrencyFinanceFinancial ServicesFinTechWeb3
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H1B Sponsor Likelynote

Responsibilities

Design and implement responsive, high-performance web applications using React and TypeScript
Integrate smart contract interactions and on-chain data using libraries such as ethers.js and wagmi
Collaborate with blockchain engineers, product managers, and designers to ship high-quality, user-focused features
Own the entire front-end development lifecycle, from architecture and implementation to testing and deployment
Apply secure coding practices and ensure best-in-class performance and accessibility
Stay up to date with Web3 trends and tooling to continuously evolve our front-end capabilities
Mentor junior engineers and contribute to a culture of collaboration and technical excellence

Qualification

ReactTypeScriptJavaScriptBlockchain integrationFront-end testing frameworksWeb3 architectureProblem-solving skillsCollaborationMentoring

Required

5+ years of experience building modern front-end applications in a production environment
Proficiency with JavaScript, TypeScript, React, and front-end testing frameworks (e.g., Jest, Playwright, Cypress)
Hands-on experience integrating with blockchain applications or protocols (e.g., using MetaMask, WalletConnect, ethers.js)
Deep understanding of web development fundamentals, including accessibility, performance optimization, and responsive design
Familiarity with Web3 architecture and concepts such as smart contracts, RPC endpoints, gas fees, and decentralized applications (dApps)
Strong problem-solving skills and ability to work independently in a fast-paced, remote-first environment

Benefits

A discretionary annual bonus
Long-term incentive in the form of a new hire equity grant
Comprehensive health plans
401K with company matching
Paid Parental Leave
Flexible time off

Company

Gemini

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Gemini is a licensed digital asset exchange and custodian built for both individuals and institutions.
dateFounded in 2014
location
New York, New York, USA
people-size501-1000 employees
web-link
https://gemini.com

H1B Sponsorship

Gemini has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2024 (1)

Funding

Current Stage
Public Company
Total Funding
$499.9M
Key Investors
RippleDraper DragonMorgan Creek Digital
2025-09-12IPO
2025-07-10Debt Financing· $75M
2022-06-20Secondary Market· $1M

Leadership Team

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Tyler Winklevoss
Co-Founder & CEO
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Cameron Winklevoss
Co-founder & President
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Recent News

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Company data provided by crunchbase