Senior Product Manager, B2B Crypto Infrastructure

Coinme is redefining access to financial services in a digital world by making digital currencies accessible and usable for all. The Senior Product Manager will lead B2B product initiatives, focusing on scaling crypto transaction orchestration infrastructure and ensuring high-quality API integration and reliability.

Responsibilities:

• Own the full product lifecycle of Crypto-as-a-Service, with a strong emphasis on API quality, integration reliability, transaction fulfillment at scale, and partner success
• Define and evolve APIs, SDKs, onboarding flows, sandbox environments, and technical documentation
• Scale our on-chain transaction fulfillment pipeline, including signing infrastructure, gas management, wallet orchestration, and transaction queuing—to support high-throughput partner volumes across multiple chains
• Write world-class PRDs that include sequence diagrams, detailed error states, edge-case handling, and compliance requirements
• Collaborate with engineering on architecture decisions, payload structures, rate limiting, and event sequencing
• Work with Compliance, Legal, Payments, and Fraud teams to optimize KYC/AML flows, chargeback handling, and risk controls
• Drive iterative development cycles grounded in real partner usage, API analytics, and continuous testing
• Act as the internal SME on payments, APIs, crypto rails, and integration best practices

Requirements:

• 5+ years of product management experience in crypto or fintech
• Hands-on experience scaling crypto transaction fulfillment or orchestration infrastructure at a major exchange, crypto/stablecoin infrastructure provider, or similar high-throughput environment
• Understands exchange infrastructure, including treasury management and liquidity operations
• Strong understanding of blockchain settlements and blockchain infrastructure, including signing, broadcasting, gas and fee management, confirmation tracking, and error recovery
• Experience building or supporting API-first B2B products, including REST APIs, SDKs, and webhooks
• Ability to read logs, troubleshoot API failures, inspect JSON payloads, and guide partner engineers through integration issues
• Demonstrated history of leading partner-facing integrations from onboarding to launch
• High attention to detail in writing specs, mapping edge cases, and defining testing requirements
• Experience working closely with engineering teams and speaking comfortably about architecture, dependencies, and system constraints
• Familiarity with agile methodology, technical documentation practices, and rapid iteration
• Tools experience: Postman, API consoles, Jira, Confluence, analytics platforms (Amplitude, Mixpanel, etc.)
• Experience with major wallet platforms (e.g. Fireblocks)
• Experience with multi-signer or multi-wallet architectures
• Experience with gas optimization strategies
• Experience with transaction queuing systems