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Digital Assets Backend & Workflow Engineer

Decision Six Inc.New York, NY🇺🇸United States

Quick overview

SeniorityMid Senior
Work modeHybrid
LocationNew York, NY, United States
BlockchainJavaPythonTypeScript

Job description

Role purpose: Build the services that coordinate digital-asset requests from initiation through approval, execution, confirmation, and downstream updates.

Responsibilities:

•     Develop internal APIs for transaction requests, status tracking, and operational workflows.

•     Implement transaction state machines and integration with relevant trading, cash, custody, and servicing systems.

•     Build webhook ingestion with authenticity verification, deduplication, durable processing, replay, and exception handling.

•     Implement idempotent transaction submission and safe recovery from timeouts or uncertain outcomes.

•     Build signing/approval callback integrations where the selected architecture requires them.

•     Maintain correlation IDs and an auditable record across internal requests, provider transactions, and blockchain transactions.

Required profile:

•     Strong Java, Python, TypeScript, or equivalent enterprise backend experience.

•     Expertise in asynchronous processing, messaging platforms, databases, and resilient API integration.

•     Experience handling duplicate, delayed, and out-of-order events.

•     Understanding of transaction consistency and distributed failure modes.

•     Digital-asset integration experience preferred.

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