[Coupang Pay] Director, Back-End Engineering

About this role

<div> <div> <h4>첨부된‘   <a href="https://coupang.service-now.com/sp?id=kb_article&sys_kb_id=de15592ddb95509071c8f2d90c9619f7">사내공모지원서 양식   </a>’을 작성하신 후 반드시 제출하여 주시기 바랍니다.<br>Please complete the attached the    <a href="https://coupang.service-now.com/sp?id=kb_article&sys_kb_id=de15592ddb95509071c8f2d90c9619f7">Internal Transfer Request Form   </a> and submit it.<br><br>쿠팡 이메일 계정으로 지원해 주세요.<br>Please make sure you are applying with your Coupang e-mail address.</h4> <h4><strong><span data-contrast="none">Job Overview</span></strong> <span data-ccp-props="{"134233117":false,"134233118":false,"134245417":false,"335551550":1,"335551620":1,"335559738":0,"335559739":0}"> </span></h4> <p><span data-contrast="none">Coupang Pay is transforming the digital payments experience at massive scale—powering millions of secure transactions every day across Coupang.com, Coupang Eats, and our ecosystem of merchants and partners. We are building fast, reliable, and innovative fintech solutions that serve both consumers and businesses across Korea and beyond.</span></p> <p><span data-contrast="none">We are seeking a </span><strong><span data-contrast="none">Sr.Staff Software Engineer</span></strong><span data-contrast="none"> who is both a visionary technical leader and a hands-on builder. This role combines architectural ownership, full-stack development, and distributed systems expertise to deliver payment systems with industry-leading scale, resiliency, and speed.</span><span data-ccp-props="{"134233117":false,"134233118":false,"134245417":false,"335551550":1,"335551620":1,"335559738":0,"335559739":0}"> </span></p> <p><span data-ccp-props="{"134233117":false,"134233118":false,"134245417":false,"335551550":1,"335551620":1,"335559738":0,"335559739":0}"> </span></p> <h4><strong><span data-contrast="none">Key Responsibilities</span></strong><span data-ccp-props="{"134233117":false,"134233118":false,"134245417":false,"335557856":16777215,"335559738":0,"335559739":240}"> </span></h4> <p><strong><span data-contrast="none">Hands-on Architecture & Development</span></strong><span data-ccp-props="{"134233117":false,"134233118":false,"134245417":false,"335551550":1,"335551620":1,"335559738":0,"335559739":0}"> </span></p> <ul> <li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{"335552541":1,"335559683":0,"335559684":-2,"335559685":800,"335559991":400,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1"><span data-contrast="none">Architect, design, and implement complex, distributed, cloud-native systems spanning frontend, backend, APIs, data pipelines, and infrastructure.</span><span data-ccp-props="{"134233117":false,"134233118":false,"134245417":false,"335551550":1,"335551620":1,"335559738":240,"335559739":240}"> </span></li> </ul> <ul> <li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{"335552541":1,"335559683":0,"335559684":-2,"335559685":800,"335559991":400,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="2" data-aria-level="1"><span data-contrast="none">Write and review production-grade code; optimize critical paths for performance, reliability, and correctness.</span><span data-ccp-props="{"134233117":false,"134233118":false,"134245417":false,"335551550":1,"335551620":1,"335559738":240,"335559739":240}"> </span></li> </ul> <ul> <li data-leveltext="" data-font="Symbol" data-listid="1"…