Backend Engineer with Security knowhow
Core
Design and implement secure custody and wallet management capabilities for digital assets on ING's blockchain SaaS platform.
Role type
Senior Blockchain Backend Security Engineer
Builds
Secure custody workflows, wallet management systems, and integration components with blockchain SaaS vendors.
Domain
Banking / Digital Assets / Blockchain Security
Required skills
Java (17+), Spring Boot, Microservices, RESTful APIs, Event-driven architecture, Docker, Kubernetes, Cryptography, HSM integration, Key lifecycle management, Threat modeling, Security-by-design
Preferred skills
MPC custody solutions, Institutional custody provider integration, Blockchain security & smart contract risks, Azure, ISO 27001/SOC2 compliance, Agile/Scrum
Technologies
Java, Spring Boot, Docker, Kubernetes, Azure, HSM
Responsibilities
Design and develop Java-based backend services for digital asset operations; Build APIs and microservices for wallet administration and custody workflows; Implement secure key management processes and HSM integrations; Conduct security reviews and threat modeling; Collaborate with DevOps on CI/CD pipelines and infrastructure-as-code.
Seniority
Senior, hands-on IC