BackEnd Engineer: Experiments
Constructor4 months ago
Remote, SpainMid Level
Base Salary
$80k - $110k/yr
Responsibilities
- Build and maintain Python backend services for experiment assignment, logging, and report generation.
- Improve the scalability, performance, and reliability of experiment reporting pipelines.
- Add product-facing features to the Plotly Dash UI for launching experiments and interpreting results.
- Own technical projects by shaping solutions, breaking down work, and driving execution with the team.
- Participate in a weekly on-call rotation to investigate issues and answer internal questions.
- Collaborate with Search, Recommendations, ML, data science, and customer-facing teams when needed.
Requirements
- 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 metrics, logging, and analytics systems.
- Ability to ship maintainable software through testing, code review, and incremental delivery.
- Ability to turn ambiguous problems into executable technical plans and build systems users can trust.
- Experience with experimentation systems, metrics platforms, or A/B testing workflows is preferred.
- Experience with PySpark and/or Databricks is preferred.
Benefits
- Fully remote work with flexibility for preferred time zones of UTC+1 to UTC+7.
- Unlimited vacation, with encouragement to take at least three weeks per year.
- Work-from-home stipend and Apple laptops for new employees.
- Annual training and development budget.
- Maternity and paternity leave for qualified employees.
- Stock options in addition to base salary.
- Regular team offsites.
- Opportunity to work with experienced colleagues and make a meaningful impact.
Tech Stack
Categories
About Constructor
Constructor builds an AI-powered search and product discovery platform for ecommerce retailers, marketplaces, and distributors, delivered as enterprise SaaS. Its tools power on-site search, browse, recommendations, and shopping agents to optimize conversions and merchandising outcomes. Founded in 2019 by Eli Finkelshteyn and Dan McCormick, the San Francisco–based, privately held company counts brands such as Sephora, Under Armour, and Petco as customers and raised a Series B in 2024.