Top Tech Jobs & Startup Jobs in NYC, NY

Design, build, and maintain production-grade native mobile SDKs for embedded wallets. Own API design, implementation, testing, releases, documentation, and developer support. Implement secure wallet flows, cryptographic operations, and blockchain interactions while ensuring reliability, observability, and long-term maintainability.

Provide frontline technical support for Fireblocks' SaaS platform, resolving customer issues via Slack and other tools, escalating complex cases, participating in incident response, documenting cases, and contributing to process improvements. Work US-Pacific hours on a fixed Wed–Sun schedule after training, collaborating with internal teams to ensure customer success in crypto and DeFi environments.

Design and implement native mobile SDKs, focusing on performance and reliability. Own features end-to-end and build secure, reliable SDK components for wallet operations. Collaborate with teams for quality and operational excellence.