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Senior Staff Relevance Engineer

Coupang is a fast-growing global e-commerce company combining startup agility with the resources of a large public firm. We are looking for a Senior Staff Relevance Engineer to apply state-of-the-art ML and LLM techniques to improve search relevance, retrieval, and query understanding, driving end-to-end production solutions and mentoring other engineers.

Skills

  • Strong experience with ML/DL and modern modeling techniques (transformers, self-supervised pretraining, generative modeling, LLMs)
  • Hands-on experience training and serving models at scale using PyTorch or TensorFlow
  • Production engineering skills for deployment, monitoring, and model lifecycle management
  • Proficient coding in Python, Java, or C++
  • Experience designing and analyzing A/B experiments and statistical analysis
  • Ability to communicate technical results to leadership and cross-functional teams

Responsibilities

  • Diagnose and root-cause major defects in Coupang search experience and propose scalable solutions
  • Design, build, train, and deploy ML models (including LLM and deep learning approaches) for search relevance and retrieval
  • Run experiments and A/B tests, analyze results, and translate insights into product and model requirements
  • Establish automated, scalable processes for data analysis, model development, validation, and serving
  • Present technical results and recommendations to leadership and cross-functional partners
  • Mentor junior engineers and help raise ML capabilities across teams
  • Drive consensus as a technical thought leader on complex, ambiguous problems

Education

  • Bachelor's degree in Computer Science or related field (required)
  • Master's or PhD in Computer Science or related field (preferred)

Benefits

  • Medical, dental, vision, life, and AD&D insurance
  • Flexible Spending Account (FSA) and Health Savings Account (HSA)
  • Short-term and long-term disability coverage
  • Employee Assistance Program (EAP)
  • 401(k) plan with company match
  • 18-21 days of paid time off per year (based on tenure) plus 12 public holidays
  • Paid parental leave
  • Pre-tax commuter benefits and free electric car charging at MTV office
  • Other compensation may include bonuses and equity
To read the complete job description, please click on the ‘Apply’ button

Average salary estimate

$241500 / YEARLY (est.)
min
max
$159000K
$324000K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

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Coupang is one of the largest and fastest-growing e-commerce companies in the world. Its innovative technologies and novel approach to mobile commerce and customer service have set a new standard for e-commerce in Korea and beyond. Powered by its ...

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FUNDING
DEPARTMENTS
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
SALARY RANGE
$159,000/yr - $324,000/yr
EMPLOYMENT TYPE
Full-time, onsite
DATE POSTED
October 19, 2025
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