Collectors is the leading provider of value-added services to the collectible’s markets. Every quarter we grade, authenticate, and sell millions of high-value, record-setting collectibles. We have broken past records, and we’re going to set future records, but we know that none of this is possible without the talented engineering experts and architects we’ve attracted to lead our teams. Which new records will you help to set?

Our services span collectible coins, trading cards, video games, event tickets, autographs, and memorabilia through our subsidiaries, which include Professional Sports Authenticators (PSA), Professional Coin Grading Services (PCGS), Wata, Certified Coin Exchange (CCE), Collectors Corner, Set Registry, Collectors.com, and the Long Beach Expo collectibles trade show. Since our founding in 1986, we have graded and authenticated more than 80 million items. We employ over 1,000 people across our Santa Ana, CA headquarters, New Jersey, Hong Kong, Paris, Shanghai and Tokyo.

Team Overview

Our special projects & innovation team is building modern cloud based applications, integrations, stream processing, AI & ML based solutions. They are a highly-technical project team, focused on revamping our architecture & building microservices.

This team is working on some of the most cutting-edge technical projects within our Collectors, much of which will serve as the basis of expanded offerings for our customers. These projects include digital grading, value estimation, and recommendations for our marketplace customers.

Position Overview

We're looking for an experienced Machine Learning Engineer that is ambitious, quick to learn, practical and outcomes driven. We value people who can quickly obtain a deep technical understanding of new domains, and enjoy working highly independently to solve our most important problems. Some of the nearest term projects they work on will entail using machine vision to drive digital grading, and building of ML models for card value estimation and recommendations.

What You’ll Do

• Design and build machine learning models to solve classification, regression, and machine vision problems
• Perform hyper-parameter tuning for existing ML models
• Implement production ready pipelines for ML prediction and training
• Perform principal component analysis, re-balancing, outlier detection for large data sets
• Optimize prediction performance for existing ML models 

Who You Are

• Bachelor's degree in computer science, data science, mathematics, or a related field (Master's degree is a plus)
• 3+ years of dedicated experience as a Machine Learning Engineer or similar role
• Extensive knowledge of ML frameworks and libraries (TensorFlow, PyTorch, JAX, scikit-learn)
• Understanding of data structures, data modeling and software architecture
• In-depth knowledge of mathematics, probability statistics, and algorithms
• Ability to write robust code in Python (experience with Go is a plus)
• Experience with Random Forest and Gradient Boosting Machines (LightGBM, XGBoost, CatBoost)
• Experience building computer vision and image recognition models using Convolutional Neural Networks
• Superb analytical and problem-solving abilities
• Excellent communication and collaboration skills
• Ability to work effectively within a remote team

Candidates must be authorized to work in the United States. 

Reasons To Join Us

• Health Insurance: All full-time employees are eligible to enroll in Medical, Dental, and Vision 
• 401(K) Matching Plan: We are proud to offer a competitive 401k matching plan to our employees to support their future financial goals 
• Vacation: All full-time employees are eligible for paid vacation 
• Holiday Pay: All regular, full-time employees are eligible for nine company paid holidays 
• Employee Discounts: Employees receive discounts on select grading services for approved submissions 
• Flexible Hours: Many of our teams offer flexible schedules with varying shifts and will work with you to accommodate your needs 
• Fun Working Environment: Our team members are invited to participate in celebrations, holiday events, and team building activities

Roles advertised as remote eligible are not open to applicants in Colorado and may not be performed in Colorado.

Collectors may use e-verify to validate your ability to work legally in the United States.

We are aware that there are instances where individuals are receiving job offers that fraudulently allege to be from Collectors or one of our business units. This type of fraud can be carried out through false websites, through fake e-mails claiming to be from the company or through social media. We never ask for personal information such as your bank account, Social Security numbers or National IDs, nor do we send or request payments for the purchase of business-related equipment. If you suspect fraud, please reach out to jobs@collectors.com.

About Collectors

Collectors is the leading provider of value-added services to the collectible’s markets. We authenticate and grade collectible coins, trading cards, video games, event tickets, autographs, and memorabilia through our subsidiaries, which include Professional Sports Authenticators (PSA), Professional Coin Grading Services (PCGS), Certified Coin Exchange (CCE), Wata, Card Ladder, Collectors Corner, Set Registry, Collectors.com, and the Long Beach Expo collectibles trade show. Since our founding in 1986, we have graded and authenticated more than 80 million items. We employ over 1,000 people across our Santa Ana, CA headquarters, New Jersey, Seattle, Hong Kong, Paris, Shanghai and Tokyo. For more information, visit http://www.collectors.com.

We are committed to equal employment opportunity regardless of race, color, ethnicity, ancestry, religion, national origin, gender, sex, gender identity or expression, sexual orientation, age, citizenship, marital or parental status, disability, veteran status, or other class protected by applicable law. We believe that a team that represents a variety of backgrounds, perspectives, and skills will better service the diverse community of collectors we support.

If you require an accommodation to apply or interview with us due to a disability or special need, please email people@collectors.com. 

If you are based in California, you can read information for California residents linked here.