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Senior Staff, Back-end Engineer(Coupang POS)

Location Seoul, South Korea


Join an innovative journey at Coupang as part of a pioneering team with the mission to launch a groundbreaking service in a market dominated by giants valued at over $80 billion! As a new software engineer on our team, you'll have the unique opportunity to be a foundational member, directly shaping the development of a service from the ground up. Our ambition? To swiftly achieve product-market fit, setting the stage for rapid expansion and significant impact. This role isn't just a job; it's a chance to make your mark in the tech world, be at the forefront of innovation, and contribute to a project with the potential to redefine an industry. Dive into an environment where your work directly contributes to the company's growth and where every day brings new challenges and opportunities for professional development. Are you ready to be part of a journey that's as exciting as it is rewarding? Apply now and be the force behind our success story!


Role Overview

Since this is a new project, this role gives a big opportunity to grow with the team. As a Senior Staff Back-end Engineer, you will own our innovative end-to-end service. You will be responsible for designing scalable & reliable architecture of the service and building an ecosystem with tech stacks such as Cloud Native (AWS), MSA, Spring boot, JPA, Kubernetes, Docker, Kafka, Redis, MySQL, etc to guarantee an effortless customer experience. Working in an agile environment where quick iterations and feedback are a way of your life.


What You Will Do

  • Write well-designed, testable, efficient codes by using best software development practices
  • Gather and refine specifications and requirements by collaborating with product owners and stakeholders and based on technical needs
  • Design scalable architecture, system and implement the products from scratch
  • Taking responsibility of code review/design review committee, and raising the bar of engineering excellence
  • Performing key engineer role to make decisions on system design
  • Monitor production applications, ensure stability, troubleshoot issues, and eliminate impacts
  • Stay plugged into emerging technologies/industry trends and apply them into operations and activities


Basic Qualifications

  • Bachelor or above degree in Computer Science or related fields
  • 10+ years of solid work with large distributed systems, system design, and algorithms
  • 5+ years of coding experience in Java or other object-oriented programming languages
  • Experience with object-oriented programming and expert in Java or other languages
  • Experience design and building large scale services, and operating experiences
  • Experience with relational/non-relational DBs, e.g., MySQL, Redis, Cassandra, etc.
  • Aggressive problem diagnosis and creative problem-solving skills
  • Familiar on AWS, Spring framework 


Preferred Qualifications

  • Experience with e-commerce or consumer product industry
  • Experience with the architecture of web applications using major JavaScript frameworks
  • Ability to handle multiple competing priorities in a fast-paced environment
  • Expertise in large-scale services for complex business offerings
  • Fluent in English speaking and writing


[Recruitment Process and Others

Recruitment Process   

  • Application Review - Phone Interview - Onsite (or Virtual Onsite - Tech&Focus) Interview – Offer  
  • The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances.  
  • Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.  

Details to Consider   

  • This job posting may be closed prior to the stated end date for application if all openings are filled.     
  • Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process.     
  • Coupang does not discriminate against disabled applicants or those with veteran status. We are proud to offer equal opportunities for all applicants.  
  • Job titles and responsibilities may be subject to change depending on the candidate’s overall experience, etc. This will be communicated to the candidate at the appropriate time before the offer. 

Privacy Notice   


Document Return Policy 

  • This notification is given pursuant to Article 11 (6) of the Fair Hiring Procedure Act.   
  • 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.  
  • 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 the request to the Company (Coupang Recruiting Team, Tower 730, 570 Songpa-daero, Songpa-gu, Seoul). 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.  
  • 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 of his/her hiring documents will be destroyed immediately in accordance with the Personal Information Protection Act.  
  • Hiring may be restricted in case the legal qualifications required for hiring and work performance are not met.