Senior Machine Learning Engineer: ML Recall (Remote)
Company: Constructor
Location: Location not specified (Remote)
Type: Full-time
Remote: Yes
Posted: 2026-05-07
About this role
About Us
Constructor is the next-generation platform for search and discovery in ecommerce, built to explicitly optimize for metrics like revenue, conversion rate, and profit. Our search engine is entirely invented in-house utilizing transformers and generative LLMs, and we use its core and personalization capabilities to power everything from search itself to recommendations to shopping agents. Engineering is by far our largest department, and we've built our proprietary engine to be the best on the market, having never lost an A/B test to a competitive technology. We're passionate about maintaining this and work on the bleeding edge of AI to do so.
Out of necessity, our engine is built for extreme scale and powers over 1 billion queries every day across 150 languages and roughly 100 countries. It is used by some of the biggest ecommerce companies in the world like Sephora, Under Armour, and Petco.
We're a passionate team who love solving problems and want to make our customers' and coworkers' lives better. We value empathy, openness, curiosity, continuous improvement, and are excited by metrics that matter. We believe that empowering everyone in a company to do what they do best can lead to great things.
Constructor is a U.S. based company that has been in the market since 2019. It was founded by Eli Finkelshteyn and Dan McCormick who still lead the company today.
Role Overview
Machine Learning Recall team builds and optimizes ML/DL models to improve customer experience by providing the best results in terms of relevancy (looks effective) and marginality (be effective). We're looking for a Senior MLE who will help us with that.
In the second part of 2025, we plan to focus our attention on:
- Recall: we don't want to lose good results
- Visual solutions: we would like to deliver end-to-end visual solutions for our customer, including (but not limited to) image search, shop the look, visual recommendations, etc
- Technical platform: we have many diff...