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Senior Technical Account Manager, Cash App Pay & Afterpay

114k – 195kNew York, NYOnsite5+ YOE
Summary

Senior Technical Account Manager serving as trusted technical partner for Cash App Pay and Afterpay's largest merchants, using hands-on HTML/CSS/JS skills to resolve integrations while driving growth and commercial outcomes.

About the role

Responsibilities

  • Identify and act on post-sales growth opportunities within merchant portfolio, partnering with Account Management to grow GPV and feature adoption
  • Provide education to merchants, partners, and internal teams on Cash App Pay and Afterpay features; deliver quarterly technical reviews connecting integration health to commercial performance
  • Partner with Solutions Engineering to ensure seamless pre-sales to post-sales handoffs and collaborate on expansion opportunities
  • Work cross-functionally with Account Management, Sales, Solutions Engineering, Product, and Engineering to provide technical and operational solutions
  • Partner with Product and Engineering to represent the merchant voice and frame feature requests with commercial impact
  • Proactively manage new product life cycles to facilitate merchant adoption
  • Lead integration health monitoring: conduct regular health checks using KPIs, perform root-cause analysis, implement preventative measures
  • Use HTML, CSS, and JavaScript to assess and solve integration issues on merchant websites and in-store terminals
  • Maintain comprehensive integration documentation following established templates
  • Operate within team operating rhythm including merchant health reporting, portfolio reviews, and KPI performance measurement
  • Document challenges and blockers to share learnings with other Technical Account Managers
  • Participate in on-call incident response rotation with SLA adherence, including RCA delivery and senior leadership communication
  • Leverage AI and automation tools to improve efficiency in merchant analysis, issue detection, documentation, and portfolio management

Requirements

  • Senior-level experience in account management, customer success, or client-facing technical role within payments, fintech, or e-commerce
  • Prior hands-on technical experience in Solutions Engineering, Partner Engineering, Technical Consulting, or software development
  • Experience managing and growing enterprise accounts, including identifying expansion opportunities and driving commercial outcomes
  • Solid understanding of payments infrastructure, APIs, integrations, and e-commerce platforms
  • Ability to explain technical concepts clearly to both technical and non-technical audiences
  • Proficiency in JavaScript, HTML, and CSS for assessing and debugging integration issues across e-commerce and POS platforms
  • SQL experience for data analysis and troubleshooting
  • Experience with monitoring tools (Datadog, SumoLogic) for proactive issue detection and portfolio health oversight
  • Familiarity with platform management processes: environments, testing, release management, and deployments
  • Strong commercial acumen balancing client advocacy with company objectives
  • Experience engaging with C-suite and VP-level stakeholders
  • Strong written and verbal communication skills
  • Practical hands-on experience using AI tools in a professional context with ability to critically evaluate outputs

Nice-to-Haves

  • Direct experience with buy-now-pay-later (BNPL), payment processing, or merchant acquiring
  • Background in incident management
Skills
JavaScriptHTMLCSSSQLDatadogSumoLogicAPI IntegrationPayments InfrastructureE-commerce PlatformsIncident Management
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