Senior Software Engineer – Transaction Management

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🗽 New York – Remote

🗽 New York – Remote

💵 $200k - $250k / year

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

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Turnkey

WebsiteLinkedInAll Job Openings

51 - 200 employees

₿ Crypto

🔐 Security

🔌 API

💰 $30M Series B - Turnkey on 2025-06

Crypto • Security • API

Turnkey is private key management made simple. It provides secure, non-custodial wallet infrastructure and developer APIs to create wallets, sign transactions, and automate on-chain actions at scale using trusted hardware (TEEs) and verifiable, open-source cryptography. Turnkey targets developers and enterprises building embedded wallets, DeFi/trading apps, payment flows, and other blockchain-native consumer applications that need low-latency, multichain signing, policy-based access controls, and high-availability infrastructure.

📋 Description

• Design and build transaction parsing, validation, and broadcasting infrastructure across multiple blockchain protocols • Develop and maintain protocol-specific libraries and abstractions that power Turnkey's transaction management layer • Collaborate effectively across the company to design and deliver core product capabilities • Write internal product specifications, external developer documentation, and technical whitepapers • Design and build new product features end-to-end driven by customer requests and ecosystem developments • Assist in scaling out a world-class engineering team • Develop thoughtful deployment processes and infrastructure to reduce the risks inherent in the software development lifecycle

🎯 Requirements

• 5+ years of production engineering experience • Golang engineering skills, this team writes primarily in Go • Deep, hands-on familiarity with crypto protocols; EVM fluency is a must, and breadth across other chains is a strong plus • Experience working with AWS, GCP, or other cloud providers • An understanding of modern application architectures with opinions on how they should be developed and deployed • Experience building and operating large-scale, mission-critical infrastructure • Prior experience building scaled crypto products • A healthy amount of paranoia :-)

🏖️ Benefits

• 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 • Lunch stipend