Remote Senior Mobile SDK Engineer – Wallet & Blockchain

Fireblocks; United States; On-site; USD 177,000 - 230,000; Full time

Benefits offered by this job

Very competitive benefits

Equity grant

Job summary

Fireblocks is hiring a Senior Mobile SDK Engineer to design and ship native SDKs for embedded wallet experiences. You will own features end‑to‑end, build secure components for wallet operations, and evolve the architecture for long‑term adoption.

You will create demos, write documentation, and collaborate with teams to ensure high quality releases. Required 5+ years of mobile engineering, Swift/Kotlin, and experience with API design, CI/CD, and security‑sensitive mobile software.

Qualifications

• 5+ years of software engineering with a mobile focus and shipping production SDKs.
• Experience with mobile security, key management, cryptography, or security-sensitive mobile software.
• Strong API design, versioning, packaging, and long‑term maintenance across platforms.
• Experience designing shared core logic used across iOS and Android.
• Experience with CI/CD, automated testing, release management, and observability.

Responsibilities

• Design and implement high-quality native mobile SDKs for embedded wallet functionality.
• Own SDK features end-to-end—from API design to release and documentation.
• Build and maintain secure, reliable SDK components for wallet operations.
• Define and evolve the SDK architecture for long-term maintainability and adoption.
• Create sample apps and demos to showcase SDK capabilities.
• Develop clear SDK documentation and integration guides.
• Collaborate with developer relations to address integration challenges.
• Improve quality and release processes with testing and observability.
• Demonstrate ownership through hands-on work, code reviews, and knowledge sharing.

Skills

Swift (iOS)

Kotlin (Android)

Cross-platform

API design

CI/CD

Education

B.Sc. in Computer Science / Engineering

Tools

React Native

SDK development

Job description

Fireblocks is hiring a Senior Mobile SDK Engineer to design and ship native SDKs for embedded wallet experiences. You will own features end‑to‑end, build secure components for wallet operations, and evolve the architecture for long‑term adoption.

You will create demos, write documentation, and collaborate with teams to ensure high quality releases. Required 5+ years of mobile engineering, Swift/Kotlin, and experience with API design, CI/CD, and security‑sensitive mobile software.