Full Stack Engineer: Retail Media
Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on Jul 14, 2026. Constructor scores A on the Alion truth index.
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.
About the Team
The Retail Media team is building a platform for connecting ecommerce retailers and brands. In a nutshell, retail media is the product that allows a brand to buy a placement within our customer’s search, browse, recommendations, collections, or quizzes results. A comprehensive retail media platform integrates seamlessly with online retailers, offering advanced targeting, bidding, and analytics capabilities. This platform aims to enhance ad visibility, optimize ad placement, and provide robust performance analytics. We're a passionate team of cross-functional engineers who love challenges and want to make people’s lives better. We value openness, curiosity, continuous improvement, and great code. We believe that empowering everyone in a company to do what they think is best can lead to great things.
The Retail Media team is new and looking for Senior Full Stack engineers who will help us build a great Customer Dashboard interface for both retailers and brands to support them.
About the Job
The primary focus of this job is to design, deliver & maintain a web application in close collaboration with other engineers.
Work collaboratively with Product and Design teams to build Retail Media functionality.
Collaborate with technical and non-technical business partners to develop / update functionalities.
Communicate with stakeholders within and outside the team.
Deliver Customer dashboard features using Typescript and React, collaborating with backend services (Python and FastAPI).
Requirements
Strong foundation with client-side JavaScript, computer science background & familiarity with networking principles.
Solid experience with Typescript and frontend frameworks like React.
Experience building, maintaining, and debugging full-stack web applications.
Experience with Python and one of the backend frameworks like FastAPI, Flask, or Django, or willingness to learn and work with this stack.
Good understanding of API design principles.
Familiarity with Service-Oriented Architecture.
Experience with relational databases, distributed systems, and caching solutions (MySQL/PostgreSQL).
Analytical skills and experience with SQL to gather insights into dashboard reports and solutions (ClickHouse, Athena).
Experience with any of the major public cloud service providers: AWS, Azure, GCP.
Experience collaborating in cross-functional teams.
Excellent English communication skills.
Ideal candidate has previous experience building ad tech solutions.
Benefits
Unlimited vacation time - we strongly encourage all of our employees take at least 3 weeks per year
Fully remote team - choose where you live
Work from home stipend! We want you to have the resources you need to set up your home office
Apple laptops provided for new employees
Training and development budget for every employee, refreshed each year
Maternity & Paternity leave for qualified employees
Work with smart people who will help you grow and make a meaningful impact
Base salary: $80k-$120k USD, depending on knowledge, skills, experience, and interview results
Stock options - offered in addition to the base salary
Regular team offsites to connect and collaborate
Diversity, Equity, and Inclusion at Constructor
At Constructor.io we are committed to cultivating a work environment that is diverse, equitable, and inclusive. As an equal opportunity employer, we welcome individuals of all backgrounds and provide equal opportunities to all applicants regardless of their education, diversity of opinion, race, color, religion, gender, gender expression, sexual orientation, national origin, genetics, disability, age, veteran status or affiliation in any other protected group.
Studies have shown that women and people of color may be less likely to apply for jobs unless they meet every one of the qualifications listed. Our primary interest is in finding the best candidate for the job. We encourage you to apply even if you don’t meet all of our listed qualifications.
How we handle your data. By submitting this application, you acknowledge that Constructor will collect and process the personal data you provide for the purpose of evaluating your candidacy for this role. If you are not selected, we will retain your data for a limited period as described in our Recruitment Privacy Notice. After that period your data will be deleted or anonymized.