Staff Frontend Engineer
Turnkey is a key management API solution optimized for security, flexibility, and ease-of-use. Founded by the leaders who scaled Coinbase Custody from 0 to a $100M+ ARR business, Turnkey is rewriting the rules of crypto infrastructure by tackling core security at its foundational level. We are building the trustless, transparent platform that empowers developers to unlock the next wave of mass-market crypto applications, solving the challenge of secure, flexible key management.
Much like AWS transformed computing with the advent of cloud, Turnkey is the trustless, transparent, and decentralized infrastructure that will transform development in crypto.
As a Staff Frontend Engineer at Turnkey, you’ll lead the evolution of how developers build on Turnkey. That means owning the ergonomics, architecture, and interface design of our frontend SDKs (React, React Native, Typescript) - the components our customers embed directly into their apps to integrate Turnkey.
You’ll also be responsible for contributing to our own frontend surface area – including our dashboard and internal UI tools – but the core of this role is shaping developer-facing SDKs that feel effortless, secure, and future-proof. You’ll pair deeply with engineering teammates, contribute to core infrastructure, and set the bar for frontend excellence across the company.
What You'll Do
Own and evolve our frontend SDKs: architect user flows, manage versioning, shape developer ergonomics, and build in patterns that scale
Design and implement UI components using React and Typescript, across both SDKs and internal surfaces like our dashboard
Partner with engineering and product teams to build examples, demos, and documentation that meet developers where they are
Act as a player / coach internally – setting standards, offering guidance, and reviewing code with an eye towards craft and polish
Build with empathy: think like a user and a customer, and shape SDKs that are intuitive, secure, and hard to misuse
Help define frontend best practices and tooling within Turnkey
What We're Looking For
8+ years of engineering experience, including meaningful time spent building developer tools, SDKs, or design systems
Deep fluency with modern frontend technologies, especially React, React Native, and Typescript
Experience building and maintaining frontend SDKs used by external developers
A strong product mindset and sharp technical instincts: you think about the “why,” not just the “how”
Style Points
Experience with authentication flows, session management, and secure browser interactions
Contributions to open source projects
Prior work on design systems or component libraries at scale
Prior professional crypto experience; familiarity with the crypto frontend stack (ethers.js, web3.js, EIP-1193, client-side private key management, etc.)
What We Offer
Full benefits, including medical, dental, vision, life, disability, HSA/FSA, 401(k) - detailed benefits overview available as we get further in the process
Paid parental leave
Unlimited PTO
$3,000/yr learning and development budget to attend industry conferences
Multiple team offsites per year
Macbook Pro laptop
Lunch stipend (for those physically in the New York City office)
Top Skills
What We Do
Turnkey provides secure, scalable, and programmable crypto infrastructure for embedded wallets and onchain transaction automation. Designed by the team that scaled Coinbase Custody past $100B in assets, and backed by Sequoia, Bain Crypto Capital, Lightspeed Faction, Galaxy, and Coinbase Ventures, Turnkey provides low-level wallet infrastructure primitives that can be mixed, matched, and configured for any use case.
Trusted by Moonshot, Alchemy, Bridge, Magic Eden, Polymarket, Azura, Dynamic, Zora, Mural, Mysten Labs, Aptos, DIMO, Squads, Infinex, OneBalance, World and many more.
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