Senior Node.js & TypeScript Ledger Engineer at FinLayer Treasury

Job Description

FinLayer Treasury powers programmatic B2B escrow accounts and instant cross-border payouts. We are recruiting a Senior Node.js and TypeScript Ledger Engineer to scale our immutable double-entry accounting core.

Role Impact Every API transaction you process moves real capital across partner clearing banks. You will implement serializable PostgreSQL advisory locks, design idempotent webhook delivery queues with exponential backoff, and author automated reconciliation verifiers that audit billions of cents nightly without discrepancy.

Technical Expectations Five or more years developing production backend services in Node.js and strict TypeScript. Strong command of PostgreSQL transaction isolation levels, indexing strategies, and partitioning. Experience integrating financial rails, cryptographic webhook signatures, and PCI-DSS or SOC2 controls.