Coupang
Coupang20d ago

Senior Staff, Back-end Engineer (New Fintech Product Engineering)

South KoreaSeoulsenior
EngineeringOtherBackend EngineeringBackend Developer
0 views0 saves0 applied

Quick Summary

Overview

English will follow Korean text 회사 소개 쿠팡에서 분사한 쿠팡페이는 늘어나는 쿠팡 고객의 니즈에 부응하기 위해 편리한 결제 및 금융서비스를 제공하는 회사입니다.

Technical Tools
EngineeringOtherBackend EngineeringBackend Developer

English will follow Korean text

쿠팡에서 분사한 쿠팡페이는 늘어나는 쿠팡 고객의 니즈에 부응하기 위해 편리한 결제 및 금융서비스를 제공하는 회사입니다. 쿠팡페이는 Coupang 및 쿠팡이츠에서 물건을 구매하는 고객부터 쿠팡의 오픈마켓을 이용하는 판매자 그리고 쿠팡이츠 가맹점까지 쿠팡의 플랫폼을 이용하는 모든 이들에게 혁신적인 결제 및 금융 서비스 솔루션을 제공하는 데 중점을 두고 있습니다. 원터치 결제 서비스를 개발하여 사용자의 경험을 최상으로 끌어 올렸으며, 쿠팡 플랫폼 이용 고객을 대상으로 더 편리하게 결제를 할 수 있도록 나중결제라는 서비스를 런칭하였습니다. 쿠팡페이 직원들은 누구보다 풍부한 핀테크 분야의 경험을 쌓고 있고, 금융과 기술을 결합한 새로운 기회를 개척하고 있습니다.

쿠팡페이는,

  1. Wow the Customer: 고객의 신뢰를 신성하게 생각하고, 고객의 경험 가치를 최우선 합니다.
  2. Dive Deep: 사소한 문제란 없습니다. 문제 해결에 집중하며, 문제되는 사안을 꼼꼼히 검토합니다.
  3. Move with Urgency: 실행 속에서 답을 찾고 결정을 미루는 행동은 하지 않습니다.

자유로운 업무 환경에서 주도적이고, 발전적으로 업무 하길 기대하시나요?

그렇다면 쿠팡페이의 여정에 함께 하세요.

 

직무 소개
쿠팡페이는 쿠팡을 온라인 결제가 가장 편리한 플랫폼으로 만드는 것을 목표로 합니다.
Product Engineering 팀의 Senior Staff, Back-end Engineer로서, 단순한 기능 개발을 넘어 결제 핵심 도메인의 기술적 방향성을 정의하고, 대규모 트래픽을 처리하는 안정적인 핀테크 시스템을 설계·고도화하는 역할을 담당합니다.
국내 최초 원터치 결제 시스템인 “쿠페이”를 포함한 결제 핵심 서비스의 기술적 오너로서, 시스템의 안정성, 확장성, 보안, 성능 전반에 대해 책임을 집니다. 수천만 고객이 사용하는 결제 서비스를 더 빠르고 안전하게 만들기 위해 복잡한 기술적 문제를 정의하고, 근본적인 해결책을 설계 및 구현합니다.
또한 회계팀, 자금팀, Fintech 개발팀 등 다양한 유관 부서와 긴밀히 협업하며, 결제 백오피스 및 정산·대사 시스템의 아키텍처를 주도적으로 설계하고 운영 안정성을 개선합니다.
코드 리뷰, 설계 리뷰, 기술 가이드 제공을 통해 팀과 조직 전반의 기술 수준을 끌어올리는 핵심 기여자 역할을 수행합니다.
 
자격 요건
  • Backend 개발 경력 15년 이상을 보유하신 분
  • Java, Spring Framework 기반의 대규모 분산 시스템을 설계하고 운영한 경험을 보유하신 분
  • 하나 이상의 복잡한 서비스 또는 도메인에 대해 기술적 오너십을 가지고 주도적으로 개선한 경험을 보유하신 분
  • 성능, 안정성, 데이터 정합성, 보안을 고려한 시스템 설계 역량을 보유하신 분
  • 모호한 문제를 구조화하고, 기술적 판단을 통해 실제 비즈니스 임팩트를 만들어낸 경험을 보유하신 분
  • 고객 경험과 비즈니스 요구를 이해하고, 이를 기술적으로 풀어내는 데 높은 흥미와 책임감을 보유하신 분

우대 사항
  • JPA, MSA 환경에서의 아키텍처 설계 및 마이그레이션 리딩 경험을 보유하신 분
  • Payment / Fintech 도메인에서의 개발 및 운영 경험을 보유하신 분
  • 대규모 트래픽 환경에서의 장애 대응, 모니터링, SLA 개선 경험을 보유하신 분
  • 정산·대사 등 대용량 데이터 처리 및 정합성 보장 경험을 보유하신 분 
  • 애자일 소프트웨어 방법론 환경에서 기술적 리더십을 발휘한 경험을 보유하신 분
  • 기술적 판단과 설계를 통해 조직 내 다른 엔지니어들에게 영향력을 행사한 경험을 보유하신 분

 

Coupang Pay, a spin-off from Coupang, provides convenient payment and financial services to meet the growing needs of Coupang customers. Coupang Pay focuses on delivering innovative payment and fintech solutions to everyone using the Coupang platform—from customers purchasing on Coupang and Coupang Eats, to sellers on Coupang’s open marketplace, and merchants partnered with Coupang Eats.
By developing Korea’s first one-touch payment service, Coupay, Coupang Pay significantly enhanced the customer experience. The company also launched a “Buy Now, Pay Later” service to enable even more seamless payments for Coupang users. Coupang Pay employees are building deep expertise in the fintech domain while creating new opportunities at the intersection of finance and technology.
 
At Coupang Pay, we value:
  • Wow the Customer: We treat customer trust as sacred and prioritize customer experience above all else.
  • Dive Deep: No problem is too small. We focus on problem-solving and examine issues with rigor and attention to detail.
  • Move with Urgency: We seek answers through execution and do not delay decisions.
If you’re looking for an environment where you can work autonomously, take ownership, and grow continuously,
join us on Coupang Pay’s journey.

 

Coupang Pay aims to make Coupang the most convenient online payment platform.
As a Senior Staff Backend Engineer on the Product Engineering team, you will go beyond feature development to define the technical direction of core payment domains and design and evolve highly reliable fintech systems that handle large-scale traffic.
As the technical owner of core payment services—including Coupay, Korea’s first one-touch payment system—you will be responsible for system stability, scalability, security, and performance end to end. You will identify complex technical challenges and design and implement fundamental solutions to make payment services used by tens of millions of customers faster and safer.
You will also work closely with cross-functional partners such as Accounting, Treasury, and other Fintech engineering teams to lead the architecture of payment back-office systems, as well as settlement and reconciliation platforms, while improving operational stability.
In addition, you will act as a key contributor in elevating the technical bar across the organization through code review, design review, and technical guidance.
 

Requirements

~1 min read
  • 15+ years of backend engineering experience 
  • Ability to design and operate large-scale distributed systems based on Java and the Spring Framework
  • Experience owning and proactively driving improvements for one or more complex services or domains with strong ownership
  • Ability to design systems with strong consideration for performance, reliability, data consistency, and security
  • Experience structuring ambiguous problems and making technical decisions that resulted in tangible business impact
  • Ability to understand customer experience and business requirements and translate them into well-architected technical solutions with a high level of ownership

Requirements

~1 min read
  • Experience leading architecture design and migration in JPA- and MSA-based environments
  • Experience in development and operations within the Payment / Fintech domain
  • Experience responding to incidents, building monitoring systems, and improving SLAs in high-traffic environments
  • Experience handling large-scale data processing with strong guarantees around settlement and reconciliation accuracy
  • Experience demonstrating technical leadership in agile software development environments
  • Experience influencing other engineers through sound technical judgment and system design decisions

 

Responsibilities

~2 min read
  1. This notification is given pursuant to Article 11 (6) of the Fair Hiring Procedure Act.  
  2. A job applicant, who has applied but not been finally selected for a position at Coupang (the “Company”), may request the Company to return his/her hiring documents submitted pursuant to the Fair Hiring Procedure Act. However, this will not apply where the hiring documents were submitted via the website of the Company or e-mail, or where the job applicant submitted those documents voluntarily without a request from the Company. In addition, if the hiring documents were destroyed due to a natural disaster or any other reasons not attributable to the Company, such documents will be deemed to have been returned to the job applicant.  
  3. A job applicant who wishes to request the return of his/her hiring documents pursuant to the main sentence of paragraph 2 above should fill out a “Request for Return of Hiring Documents” [Annex Form No. 3 in the Enforcement Rule of the Fair Hiring Procedure Act] and submit It by email (recruitingops@coupang.com). In such case, within fourteen (14) days from the date of identifying the receipt of the request, the Company will send the hiring documents to the job applicant’s designated address via registered mail. Please be informed that the job applicant is required to pay the postage on the registered mail.  
  4. In preparation for a job applicant’s request for the return of hiring documents pursuant to the main sentence of paragraph 2 above, the Company shall retain the original hiring documents submitted by the job applicant for 180 days from the completion of the recruiting process. If no request is made until the end of this period, all his/her hiring documents will be destroyed immediately in accordance with the Personal Information Protection Act.  
  5. The above paragraphs 1 - 4 shall only apply when the labor-related laws of Korea govern the application. They are otherwise not applicable. 

Location & Eligibility

Where is the job
Seoul, South Korea
On-site at the office
Who can apply
KR
Listed under
South Korea

Listing Details

Posted
April 6, 2026
First seen
April 6, 2026
Last seen
April 27, 2026

Posting Health

Days active
21
Repost count
0
Trust Level
36%
Scored at
April 27, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust
Coupang
Coupang
greenhouse

Coupang is a U.S. retail company known for its fast delivery services and commitment to customer satisfaction.

Employees
5k+
Founded
2010
View company profile
Newsletter

Stay ahead of the market

Get the latest job openings, salary trends, and hiring insights delivered to your inbox every week.

A
B
C
D
Join 12,000+ marketers

No spam. Unsubscribe at any time.

CoupangSenior Staff, Back-end Engineer (New Fintech Product Engineering)