Backend Engineer (AI Shopping Agents) at Constructor

Executive Summary

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. The AI Shopping Agents team is building the next generation of e-commerce, creating entirely new ways for shoppers to discover products. We design and power AI-driven shopping agents that help users find what they need, ranging from intelligent search experiences to conversational, personalized product assistance. We’re a passionate cross-functional team that works end-to-end: from integrating with our core search and personalization engine to delivering user-facing agent experiences. We value openness, curiosity, continuous improvement, and great code, and we believe that empowering everyone in the team to operate at their best can lead to great things.