Senior Blockchain Backend Engineer - FinTech & Secure APIs

HCL Technologies B.V. Netherland is seeking a Senior Blockchain Platform Engineer to design and ship Java/Kotlin microservices and APIs that meet high availability, latency and security standards.

You will integrate with custody providers, wallet infrastructure and SaaS blockchain platforms, while collaborating in a cross-functional agile squad with architects, DevOps, security, and product owners; mentoring engineers and driving production readiness.