Senior Core Systems Engineer (Hiring Immediately)

Overview Senior Core Systems Engineer - Secure Wallet Infrastructure Location: Remote - Location: US or EU (remote-first, office optional). Must be in the US, not Canada or in the European Union. France or Paris or as close as possible, always preferred. Compensation: $180K - $260K Join a stellar team of leaders and experts in blockchain technology, cryptography, infrastructure, and security to build the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Senior Core Systems Engineer to design, build, and scale the low-level systems at the heart of our platform, where performance, security, and correctness are non-negotiable. This is a high-impact role focused on turning advanced cryptography into fast, resilient, and trusted production infrastructure. Responsibilities Design, implement, and operate mission-critical security primitives: MPC signers, Hardware Security Modules (HSMs), and Trusted Execution Environments (TEEs) (e.g., AWS Nitro) B...