Senior Technical Account Manager

Block (Square)
Sydney, Australia
On-site

Who this role is best for

Best suited to technically proficient professionals with enterprise account management experience working in payments and fintech.

Best fit for

  • Candidates with experience managing enterprise accounts and technical expertise in payments infrastructure
    — “Experience managing and growing enterprise accounts, including identifying expansion opportunities and driving commercial outcomes”
  • Professionals who can translate technical insights into business-relevant recommendations for C-suite stakeholders
    — “Experience engaging with C-suite and VP-level stakeholders, translating technical insights into business-relevant recommendations”
  • Individuals with a background in technical problem-solving and integration across e-commerce and POS platforms
    — “Proficiency in JavaScript, HTML, and CSS; comfortable assessing and debugging integration issues across e-commerce and POS platforms”

Things to consider

  • On-call incident response rotation is expected with SLA adherence requirements
    — “Participate in on-call incident response rotation with SLA adherence”
  • The role requires cross-functional collaboration with multiple teams including Product, Engineering, and Sales
    — “Work cross-functionally with Account Management, Sales, Solutions Engineering, Product, and Engineering”

How to stand out

  • Highlight experience with technical integration across e-commerce and POS platforms in your resume and interview responses
    — “Leverage HTML, CSS, and JavaScript to assess and creatively solve integration issues on merchant websites and in-store terminals”
  • Demonstrate your ability to drive commercial outcomes through technical solutions and feature adoption
    — “Identify and act on post-sales growth opportunities within your merchant portfolio, partnering with Account Management to grow GPV and feature adoption”
  • Showcase your use of AI and automation tools for merchant analysis and portfolio management
    — “Leverage AI and automation tools to improve efficiency in merchant analysis, issue detection, documentation, and portfolio management”
Pace · SteadyCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • identify and act on post-sales growth opportunities
  • provide education to merchants
Typical background
experience in technical account managementknowledge of HTML, CSS, and JavaScript

Skills & requirements

Required

Technical Account ManagementHTMLCSSJavaScriptCross-functional Collaboration

Preferred

Product And Technical ExpertiseCommercial Acumen

Stack & domain

HTMLCSSJavaScriptFinanceCommerce

About the role

Original posting from Block (Square)

Afterpay is transforming the way people shop and pay, giving consumers greater flexibility and control over their finances while helping merchants connect with customers and grow their businesses. Founded in Australia in 2014, Afterpay has grown into a globally recognized leader in Buy Now, Pay Later (BNPL), empowering millions of consumers to shop with confidence through a simple, transparent payment experience.

As part of Block’s global ecosystem, Afterpay works alongside Cash App, Square, and other financial products to make commerce and financial services more accessible. Together, we're building innovative solutions that connect consumers and businesses, creating more opportunities for people to participate in the economy.

The Role

Block is looking for a Senior Technical Account Manager to support our Afterpay and Cash App merchants across Australia. This team keeps merchants healthy and growing through post-sales technical partnership that protects performance, surfaces opportunity, and drives commercial outcomes.

You will serve as a trusted technical partner to our largest merchants, sitting at the intersection of product, engineering, solutions engineering, GTM, and merchant success. You will combine deep product and technical expertise with commercial acumen to proactively enable merchants - not just resolve issues - ensuring they are healthy, growing, and fully leveraging Afterpay and Cash App Pay capabilities.

This is a hands-on technical role. You will use HTML, CSS, and JavaScript to analyze and creatively solve integration issues on merchant websites and in-store terminals, while partnering cross-functionally to support feature and product adoption at scale. You will translate merchant business needs into technical solutions that deliver measurable commercial outcomes.

In this role, you will report to Block's Global Technical Account Management Lead.

You Will

Identify and act on post-sales growth opportunities within your merchant portfolio, partnering with Account Management to grow GPV and feature adoption to deliver measurable commercial outcomes

Provide education to merchants, partners, and internal teams on Cash App Pay and Afterpay features, and 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 that improve the merchant experience

Partner with Product and Engineering to represent the merchant voice and frame feature requests with commercial impact

Proactively manage new product life cycles in conjunction with Product and Engineering teams to facilitate merchant adoption

Lead integration health monitoring - conduct regular health checks using defined KPIs, perform root-cause analysis, implement preventative measures, and promote standardization across merchant implementations

Leverage HTML, CSS, and JavaScript to assess and creatively solve integration issues on merchant websites and in-store terminals

Maintain comprehensive integration documentation following established templates

Operate within and contribute to the team's established operating rhythm, including regular merchant health reporting, portfolio reviews, and performance measurement against defined KPIs

Document challenges and blockers encountered to share learnings with other Technical Account Managers in stand-ups and status check-in calls

Participate in on-call incident response rotation with SLA adherence, contributing to end-to-end incident management including RCA delivery and senior leadership communication

Leverage AI and automation tools to improve efficiency in merchant analysis, issue detection, documentation, and portfolio management

Qualifications

We know that no single candidate will meet every qualification listed below. If this role excites you and you see yourself in most of these, we encourage you to apply.

Senior-level experience in account management, customer success, or a 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, with the ability to explain technical concepts clearly to both technical and non-technical audiences

Proficiency in JavaScript, HTML, and CSS; comfortable assessing and debugging integration issues across e-commerce and POS platforms

SQL and the ability to leverage it 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 and ability to balance client advocacy with company objectives

Experience engaging with C-suite and VP-level stakeholders, translating technical insights into business-relevant recommendations

Strong written and verbal communication skills for engaging stakeholders at all levels 

Practical, hands-on experience using AI tools in a professional context with the ability to critically evaluate AI-generated outputs

Direct experience with buy-now-pay-later (BNPL), payment processing, or merchant acquiring is a plus

Background in incident management is a plus

Application Guidelines

Candidates may submit up to 9 active applications within a 60-day period. Reapplications to the same role are accepted 90 days after a previous application has been reviewed.

Use of AI in Our Hiring Process

We may use automated AI tools to evaluate job applications for efficiency and consistency. These tools comply with local regulations, including bias audits, and we handle all personal data in accordance with state and local privacy laws. 

Contact us here with hiring practice or data usage questions.

Every benefit we offer is designed with one goal: empowering you to do the best work of your career while building the life you want. Remote work, medical insurance, flexible time off, retirement savings plans, and modern family planning are just some of our offering. Check out our other benefits at Block.

Block, Inc. (NYSE: XYZ) builds technology to increase access to the global economy. Each of our brands unlocks different aspects of the economy for more people. Square makes commerce and financial services accessible to sellers. Cash App is the easy way to spend, send, and store money. Afterpay is transforming the way customers manage their spending over time. TIDAL is a music platform that empowers artists to thrive as entrepreneurs. Bitkey is a simple self-custody wallet built for bitcoin. Proto is a suite of bitcoin mining products and services. Together, we’re helping build a financial system that is open to everyone.

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Source: Block (Square) careers

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