Senior Security Engineer, Application Security

About the job

ABOUT US Turnkey builds secure, developer-first infrastructure for private key management, making it simple to create wallets, sign transactions, and automate on-chain actions through one elegant API – without ever exposing sensitive key material. Our mission is to secure the open internet by making strong cryptography and key management the default. Turnkey was founded by the team behind Coinbase Custody – the world’s largest and most secure crypto custodian – whose work has helped protect over $100B in crypto across the industry. Turnkey's team is low-ego, high-agency, and high-autonomy with more than 100 years of combined experience in cryptography, security, and low-level systems,…