Staff, Back-end engineer [FEX]

Posted 7 Days Ago
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Seattle, WA, USA
In-Office
142K-309K Annually
Senior level
eCommerce
Building the future of eCommerce. We push the boundaries of what’s possible to solve problems!
The Role
Design and build scalable backend services for real-time distribution of orders, ensuring reliability and operational excellence in a fast-paced environment.
Summary Generated by Built In

Company Introduction 

We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did we ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we’re collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We are one of the fastest-growing e-commerce companies that established an unparalleled reputation for being a dominant and reliable force in South Korean commerce. 

We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurial surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day. 

Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world. 

Job Overview 

Coupang relies on technology to provide on-time, fast delivery of products to customers every day. Fulfillment Execution (FEX) organization optimizes the real-time distribution of customer orders to FCs nationwide and supports the most efficient order fulfillment process. Building highly available and scalable systems to handle billions of order & delivery transactions and support Coupang’s rapidly growing Product Commerce business is a complex architectural challenge. We are responsible for delivering products to millions of online shopping customers by improving order reconciliation with technology. To deliver on this challenge, we are looking for an experienced and passionate engineer who can design and build large-scale, multi-tiered, distributed services. 

Key Responsibilities 

  • Demonstrate excellence resulting in scalable systems and services with the highest quality architecture and design. 
  • Responsible for designing, building, deploying and maintaining the core Workflow Platform Infrastructure. (e.g., Workflow Platforms - Temporal, Netflix Conductor etc.) 
  • Responsible for benchmarking the Platform, collecting metrics & publishing results. 
  • Responsible for measuring & ensuring reliability and uptime of the Platform with 99.995% guarantees. 
  • Responsible for capacity estimation & provisioning of cluster for different customer workloads. 
  • Responsible for production incident Monitoring & Alerting for the Platform. 
  • Detail oriented and hands on engineer who can analyze OSS Platform components and code. 
  • Dive deep into critical system issues, proactively addressing similar root causes, and raise the bar on Operational Excellence. 
  • Exposure to one of the SQL or NoSQL database systems. (Cassandra, MySQL etc.) 
  • Collaborate with other teams to make the platform open and extensible to unlock innumerable opportunities for innovations. 

Qualifications 

  • 10+ years of experience working directly within engineering teams in a fast-moving environment. 
  • 10+ years of experience in developing and operating backend services and web applications. 
  • Experience building complex, high-performance, and highly available distributed software systems that have been successfully delivered to customers. 
  • Strong familiarity developing with Java and Spring Framework as well as experience in an AWS environment. 
  • Extensive experience in managing mission critical services with high throughput and low latency. 

Preferred Qualifications 

  • Solid engineering skills as a lead engineer to coach and lead high performing software engineers and keep them motivated. 
  • Excellent communication skills to shepherd communication with end users, technical & business teams to collect requirements, describe product features, and develop technical designs to achieve business goals. 
  • Knowledge of Agile software engineering practices & patterns for the full software development lifecycle including coding standards, code reviews, build processes, testing, and live site operations. 
  • Demonstrated leadership in cross-functional, highly collaborative environment. 

Minimum Qualifications: 

  • Bachelor’s degree and 7+ years of total experience   
  • Ability to solve problems through creative thinking and partnerships with other teams   
  • Ability to attain challenging targets through goal-setting and personal drive    

Pay & Benefits 

Our compensation reflects the cost of living across several US geographic markets. At Coupang, your base pay is one part of your total compensation.

The base pay for this position ranges from $164,000/year to $282,000/year. Pay is based on several factors including market location and may vary depending on job-related knowledge, skills, and experience. Annual bonus is 0-20% of the base salary.

General Description of All Benefits 

  • Medical/Dental/Vision/Life, AD&D insurance   
  • Flexible Spending Accounts (FSA) & Health Savings Account (HSA)  
  • Long-term/Short-term Disability   
  • Employee Assistance Program (EAP) program   
  • 401K Plan with Company Match   
  • 18-21 days of the Paid Time Off (PTO) a year based on the tenure   
  • 12 Paid Holidays   
  • Up to 6 weeks of Paid Parental leave   
  • Pre-tax commuter benefits   
  • MTV - [Free] Electric Car Charging Station    

General Description of Other Compensation      

“Other Compensation” includes, but is not limited to, bonuses, equity, or other forms of compensation that would be offered to the hired applicant in addition to their established salary range or wage scale.    

Privacy Notice  

  • Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below: https://www.coupang.jobs/privacy-policy/  

Coupang is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, or gender (including pregnancy, gender identity, gender expression, sexual orientation, transgender status), national origin, age, disability, medical condition, HIV/AIDS or Hepatitis C status, marital status, military or veteran status, use of a trained dog guide or service animal, political activities, or affiliations, citizenship, or any other characteristic or class protected by the laws or regulations in the locations where we operate. If you need assistance and/or reasonable accommodation in the recruiting process due to a disability, please contact us at [email protected].   

Job Requisition ID: R0073055 


Skills Required

  • 10+ years of experience in engineering
  • 10+ years of experience in backend services development
  • Experience building high-performance distributed software systems
  • Strong familiarity with Java and Spring Framework
  • Experience in AWS environment
  • Extensive experience in managing critical services
  • Bachelor's degree and 7+ years of total experience

Coupang Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Coupang and has not been reviewed or approved by Coupang.

  • Healthcare Strength Benefits are described as robust, including medical, dental, vision, disability, life, mental health, and transgender healthcare. Some locations also offer on-site or virtual health screenings that enhance preventive care access.
  • Retirement Support Financial programs include a 401(k) with company matching and an employee stock purchase plan alongside performance bonuses. Feedback suggests these elements provide a structured foundation for long-term savings and wealth building.
  • Leave & Time Off Breadth Paid time off is described as generous with accrual increasing with tenure, complemented by company-paid holidays and parental leave. Flexible work arrangements in some roles further support time away when needed.

Coupang Insights

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The Company
Mountain View, CA
70,000 Employees
Year Founded: 2010

What We Do

We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did we ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we’re collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We are one of the fastest-growing e-commerce companies that established an unparalleled reputation for being a dominant and reliable force in South Korean commerce. We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurial, surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day. Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world.

Why Work With Us

We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact.

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