About You

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 AB 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 X languages and with customers based out of Y 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 market since 2019. It was founded by Eli Finkelshteyn and Dan McCormick who still lead the company today.

About the Position

As a JavaScript engineer focused on integrations, you’ll be helping our customers improve the search experiences of their websites and mobile apps by integrating with our services. Your specific responsibilities will include:

Developing and testing new features for our open source UI and REST client libraries
Designing and deploying interactive dashboards and alerts for monitoring customer integrations
Engaging with clients to address technical inquiries regarding our services
Assisting customers in integrating our JavaScript UI and REST client libraries into their existing codebases
Validating customer data to ensure the accuracy and quality of results generated by our services
Staying informed about our products and services to provide effective support and aid in triaging issues
Collaborating with other teams to prioritize and address customer requirements and needs

About Us

Constructor powers product search and discovery for some of the largest retailers in the world, like Sephora and Petco. We serve billions of requests every day, and you’ve probably seen our results somewhere and used our product without knowing it. We differentiate ourselves by focusing on metrics over features, and reinventing search and discovery from the ground up as a machine learning challenge with the specific goal of improving metrics like revenue. We have grown several hundred percent YoY for the last 2 years and have customers in every eCommerce vertical, around the world, and spanning many languages.

We’re a passionate team of technologists 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 think is best can lead to great things.

A minimum of two years professional and / or academic experience in software engineering
Excellent communication and interpersonal skills
Experience with front end optimization techniques, DOM manipulation / traversing, and using browser debugging tools
Experience working with server side JavaScript through Node.js and it’s build processes
Experience with popular modern front-end frameworks like React / Redux and jQuery
Experience with CSS and an eye for user experience
Nice to have: experience with Java, .NET, Python, Swift (iOS) or Kotlin (Android)
Able to pick up new technologies and design patterns quickly and love learning them
Enjoys interacting with customers and solving new problems daily as well as working closely with internal teams
Able to work between 10 am and 2 pm Eastern Time