Senior Application Security Engineer
- Where you can live
- United States
- Working hours
- Overlap with UTC-10 to UTC-5
- Salary
- USD 135,000 to 180,000 per year
- Posted
- October 15, 2026
Summary from the posting
Sardine makes risk and payment decisions for banks and fintechs. Our customers audit us closely, and application security is a large part of what they examine.
Money moves through this platform, so real adversaries study it. Your job is to find what they would find, especially authorization flaws and business logic abuse, and then make the whole class of bug go away.
The application security team is small. The estate is large: Go, Node.js, Python, Ruby, and Java services running on multi-cloud and Kubernetes. That ratio shapes the work. Findings arrive from scanners, code review, testing, threat modeling, pentesters, and bug bounty hunters.
This is a short summary. The full description, requirements and the application form are on Sardine's own career page.