Staff Back-end Engineer

Home > Java programming jobs

Staff Back-end Engineer in Others new

Coupang
Full time
Email

Others
11/10/2026
Report

Seoul, Korea

Responsibilities

Design, develop, and operate Coupang Pay’s core payment services and platforms.
Lead improvements to the scalability, reliability, security, and performance of payment systems including Coupay.
Solve technical challenges in high-traffic environments and advance system architecture.
Lead the design and operational efficiency improvements of payment back-office, settlement, and reconciliation systems.
Implement business requirements in collaboration with accounting, treasury, and fintech development organizations.
Establish payment-domain technology strategy and lead key technical decisions.
Improve development quality through code reviews and design reviews and establish engineering best practices.
Support the technical growth of the team and organization while contributing to a stable payment experience.

Requirements

At least 8 years of backend development experience.
Experience designing and operating large-scale distributed systems based on Java or Kotlin and Spring Framework.
Technical ownership and proactive improvement experience for at least one complex service or domain.
Ability to design systems considering performance, reliability, data consistency, and security.
Experience structuring ambiguous problems, making technical decisions, and creating business impact.
Strong interest in and accountability for translating customer experience and business requirements into technical solutions.
Preferred: experience designing architectures and leading migrations in JPA and MSA environments.
Preferred: payment or fintech development and operations experience.
Preferred: experience responding to incidents, monitoring systems, and improving SLAs in high-traffic environments.
Preferred: experience processing large-scale settlement and reconciliation data while ensuring consistency.
Preferred: technical leadership experience in an agile software methodology environment.
Preferred: experience influencing other engineers through technical decisions and system design.

Benefits

Permanent employment with a 12-week probationary period, which may be waived, shortened, or extended when required for business reasons.
The hiring process consists of application screening, job-fit interview, core-competency interview, and final acceptance, with procedures subject to change by role and circumstances.
The posting may close early when recruitment is completed.

Coupang

Coupang is a technology and Fortune 150 company listed on the New York Stock Exchange (NYSE: CPNG) that provides retail, restaurant delivery, video streaming, and fintech services to customers around the world under brands that include Coupang, Eats, Play, Rocket Now, and Farfetch.

Similar positions

Full-stack Test Engineer (Manual

KMS Technology
Full time

Others
11/10/2026

Đà Nẵng, Vietnam

Java Fullstack Software Engineer III

JPMorgan Chase
Full time

USA
11/10/2026
Salary: Competitive

Tampa, FL

Engineering Lead

HSBC
Full time

Others
11/10/2026

Guangzhou, China

Staff Software Development Engineer

Zscaler
Full time

Others
11/10/2026

Bengaluru, India

Principal Software Engineer

8th Light
Full time

Remote
11/10/2026
Salary: $151k-$189k

United States