Senior Payments Infrastructure Engineer — Crypto, Wallets & Blockchain

📋 Description

• Take ownership of the existing payments backend, understand its architecture and codebase, and
• Complete and optimize payment processing, settlement, reconciliation, and balance-accounting
• Develop and maintain reliable financial ledger systems, ensuring transaction consistency
• Integrate and manage digital wallets and cryptocurrency payment flows, including deposits
• Implement and maintain institutional custody integrations, particularly Fireblocks or comparable
• Integrate existing financial services through REST and gRPC APIs.

🎯 Requirements

• At least 8 years of professional backend engineering experience, including substantial hands-on
• Proven experience building and operating financial transaction systems covering payment processing
• Strong understanding of double-entry accounting and financial ledger architecture.
• Production experience with digital wallets and cryptocurrency payments, including deposits
• Experience integrating Fireblocks or comparable institutional custody platforms.
• Advanced proficiency in Rust, Go, or another high-performance backend language.

🎁 Benefits

• Opportunity to help build a global technology platform and take meaningful ownership of critical
• Entrepreneurial environment with autonomy, independence, and the opportunity to influence technical
• Deferred compensation arrangement: compensation is agreed upon but payments are deferred until
• Once funding is secured, the arrangement is intended to transition to a competitive, normalized
• Participation in the long-term ownership and potential success of the venture.
• The deferred compensation model applies across the team, including the founder.