Staff Mobile Engineer

Posted Yesterday
Be an Early Applicant
Mountain View, CA, USA
In-Office
164K-282K Annually
Senior level
eCommerce
Building the future of eCommerce. We push the boundaries of what’s possible to solve problems!
The Role
Lead development of Coupangs Search & Discovery mobile experience: build AI harnesses, ship high-quality iOS search components, collaborate with PMs and designers, run data-driven experiments (A/B tests), use analytics tools to inform product decisions, and maintain performant, scalable consumer-facing mobile features.
Summary Generated by Built In

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 entrepreneurs 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. 

Role Overview 

The Search AI Product Engineering team is dedicated to crafting innovative search and discovery experiences for Coupang customers. By utilizing cutting-edge AI breakthroughs, we empower our users to navigate products with ease and find everything they need to live their lives to the best

We are looking for smart, passionate engineer who have a strong sense of ownership. If you want your work to positively impact the lives of millions of people and you are up for a change, let's talk! This team is a full stack team, in which there are Android, iOS, Web and Backend engineers. As the engineer of Search AI Product Engineering team, you will own one of the most critical product surfaces on Coupang's app – Search and Discovery surfaces where 60%+ of transactions happen.

What You Will Do

  • Engineer robust AI harness solutions to power the Search AI Product Engineering team
  • Develop and launch groundbreaking AI-driven experiences for Coupang's search and discovery platforms
  • Drive the high-quality development and maintenance of critical iOS search components, ensuring a robust, fluent, and lightning-fast user experience that wows our customers.
  • Strategically collaborate with Product Managers, Designers, and cross-functional teams to deliver holistic, end-to-end user experiences.
  • Apply best-in-class programming skills to develop highly innovative, consumer-facing mobile products

What we are looking for

  • 6+ years of professional iOS development experience, demonstrating deep proficiency in swift
  • Proven track record developing and scaling high-quality, large-scale consumer mobile applications
  • Hands-on experience engineering robust AI harness solutions
  • Expertise utilizing data analytic tools (e.g., Presto, Jupyter) to drive product insights
  • Ability to design, execute, and analyze complex A/B tests and experiments to inform product decisions
  • Experience with architecture patterns like MVVM, modern concurrency (Combine / async-await), and data persistence (Core Data)
  • Deep and practical understanding of modern iOS UI development, including both UIKit and SwiftUI
  • Exceptional cross-functional communication skills and a strong product sense.
  • A strong passion and sense of ownership for building and iterating on consumer-facing product

Basic Qualifications  

  • Bachelor's degree in computer science, electrical engineering, mathematics, statistics or closely related fields
  • Experience developing high quality, large-scale consumer applications
  • Experience in data analytic tools such as Presto or Jupyter
  • Able to conduct complex A/B testing, able to do experiment analysis
  • Deep understanding of UI development of Android
  • Experience with MVVM, Hilt and Room
  • Strong communication skills and great product sense
  • Strong passion of building product

Preferred Qualifications 

  • Master’s or PhD in relevant technical fields
  • Experience with iOS application development (Swift/Objective-C).
  • Experience with Android and/or web development is a strong plus
  • Proven track record of strong ownership, ideally within an early-stage startup environment.
  • Excellent communication skills with the ability to explain complex technical concepts to both technical and non-technical stakeholders
  • Demonstrated ability to work independently and manage ambiguity in fast-paced environment

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 Staff position ranges from $164K/year to $282K/year. Pay is based on several factors including market location and may vary depending on job-related knowledge, skills, and experience.

General Description of All Benefits 

  • Annual bonus is 0-20% of the base salary
  • 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 Public Holidays
  • 6 weeks 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.    

Recruitment Process and Others   

Recruitment Process  

  • Application Review - Phone Interview - Onsite (or Virtual Onsite) 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.
  • Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws. 

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: R0074386


Skills Required

  • Bachelor's degree in computer science, electrical engineering, mathematics, statistics or related field
  • 6+ years of professional iOS development experience
  • Deep proficiency in Swift
  • Experience with UIKit and SwiftUI for modern iOS UI development
  • Experience with modern concurrency patterns (Combine and async-await)
  • Experience with data persistence technologies (Core Data)
  • Experience with architecture patterns like MVVM
  • Hands-on experience engineering robust AI harness solutions
  • Experience using data analytic tools such as Presto or Jupyter
  • Ability to design, execute, and analyze complex A/B tests and experiments
  • Proven track record developing and scaling high-quality, large-scale consumer mobile applications
  • Deep understanding of Android UI development
  • Experience with Android technologies MVVM, Hilt, and Room
  • Strong cross-functional communication skills and product sense
  • Master's or PhD in a relevant technical field
  • Experience with Objective-C and additional iOS legacy codebases
  • Experience with Android and/or web development
  • Proven track record of strong ownership, ideally in an early-stage startup environment

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.

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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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