Senior Security Engineer, Application Security
TurnkeyUnited States • New York, New York, United States
Posted January 27, 2026
Full Time
About the Company
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.
Job Description
Turnkey builds secure, developer-first infrastructure for private key management. We are hiring a Senior Application Security Engineer to join Turnkey's team and help ensure our systems, pipelines, and runtime environments are secure by design and resilient at scale.
Requirements
- Bachelors degree in Computer Science, Engineering, or a related field
- 5+ years of experience in application or product security
- Strong understanding of web, mobile, and cryptographic security fundamentals
- Proficiency in programming and scripting languages (Typescript/Javascript, Go, Rust)
- Hands-on experience with security testing tools and methodologies
- Strong understanding of cloud, containerized, and runtime environments
Benefits
- Full benefits, including medical, dental, vision, life, disability, HSA/FSA, 401(k)
- Paid parental leave
- Unlimited PTO
- $3,000/yr learning and development budget
- Multiple team offsites per year
- Macbook Pro laptop
- Lunch stipend (for those physically in the New York City office)
