
Python
FastAPI
PostgreSQL
BackEnd Engineer: Experiments
Overview
Constructor is the next-generation platform for search and discovery in ecommerce, built to explicitly optimize for metrics like revenue, conversion rate, and profit.
Job Description
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.
Responsibilities
- - Build and maintain backend services for experiment assignment, logging, and report generation
- - Improve scalability, performance, and reliability of experiment reporting pipelines
- - Add product-facing features to the UI to help users launch experiments and interpret results
- - Take technical ownership of projects: shape solutions, break down work, and drive execution with the team
- - Participate in a weekly on-call rotation (investigating occasional issues and answering internal questions)
- - Collaborate closely with Search/Recommendations engineers, ML/DS partners, and customer-facing teams when needed.
Required Skills
- - Strong experience building and owning production backend services in Python
- - Experience with monitoring, alerting, and debugging user-facing systems
- - Strong SQL skills and confidence working with data-heavy systems (metrics, logging, analytics)
- - Ability to ship maintainable software (tests, code review, incremental delivery)
- - Mindset: You take ownership: you can turn ambiguous problems into an executable technical plan
- - You care about building systems people trust and rely on
Benefits
- - Unlimited vacation time - we strongly encourage all employees to 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 - refreshed each year for every employee
- - Maternity & Paternity leave for qualified employees
- - Work with smart people who will help you grow and make a meaningful impact
- - Base salary: $80k–$110k 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
About the company
Constructor’s AI-powered search and product discovery platform delivers unmatched KPI optimization and fast ROI for enterprise ecommerce brands — while giving customers a personalized, enjoyable shopping experience.
All Job Openings at Constructor