About us
Constructor is the next-generation platform for search and discovery in e-commerce, 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 e-commerce 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.

? About the Team
The Recommendation Cross-Channel & Offsite Discovery team is building a platform that empowers marketers to unlock the full potential of multichannel ecommerce discovery. Our service leverages real-time shopper behaviour from website activity to power personalized offsite experiences across multiple channels - including Emails, Push notifications, ads, and more.
In a nutshell, we provide real-time personalized experience in static emails and specialize in delivering high-volume traffic (up to 10,000 requests per second). Our goal is to show shoppers what they want, when they want it -

📌 Senior Full Stack Engineer: Offsite Discovery (Barcelona)
🏢 Constructor
📍 Barcelona