Senior Blockchain SDK Engineer (Blockchain)

TL;DR

Senior Blockchain SDK Engineer (Blockchain): Leading the design and development of a cross-platform Wallet SDK using Kotlin Multiplatform, with an accent on integrating cryptography and backend services. Focus on building high-performance SDKs and mentoring engineers.

Location: Remote

Company

hirify.global partners with a company building developer tools for multi-chain wallet interactions.

What you will do

• Lead design and development of a cross-platform Wallet SDK.
• Implement full blockchain support across multiple chains.
• Integrate cryptography and backend services into a unified package.
• Build lightweight, high-performance SDKs with strong test coverage.
• Mentor engineers and collaborate with product and infrastructure teams.

Requirements

• 5-10 years in software engineering, with 3+ years in blockchain or SDK development.
• Strong in Kotlin Multiplatform, plus native Swift and Android.
• Experience delivering multi-chain SDKs and designing developer-friendly APIs.
• Familiar with CI/CD, SDK packaging, and versioning.
• Excellent collaboration and mentorship skills.