Coinme

Senior Product Manager, B2B Crypto Infrastructure

Coinme

full-time

Posted on:

Location Type: Remote

Location: United States

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Job Level

Senior

Tech Stack

Ruby on Rails

About the role

  • 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.)
  • Bonus: experience with major wallet platforms (e.g. Fireblocks), multi-signer or multi-wallet architectures, gas optimization strategies, and transaction queuing systems
Benefits
  • Health insurance
  • Paid time off
  • Flexible work arrangements
  • Professional development
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
API developmentSDK developmenttransaction fulfillmentblockchain infrastructureKYC/AML complianceerror recoveryAPI-first B2B productsagile methodologyJSON payload inspectionpartner integration
Soft Skills
attention to detailcollaborationcommunicationproblem-solvingleadershipiterative developmenttechnical documentationanalytical thinkingpartner managementadaptability