Backend Engineer : Attribute Enrichment

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

As a Backend Engineer in the Attribute Enrichment team, you will play a critical role in designing, building, and maintaining scalable services that deliver enriched items, variations, and attributes via a public API. You’ll work across key services like Attribute Enrichment and Badges, managing a dedicated database to store enriched items, their metadata, and their attributes, and develop APIs that integrate with CIO Search and Browse to support enriched facets and searchable tokens.

You will collaborate closely with ML engineers to develop and optimize the Attribute Enrichment service, ensuring its scalability, reliability, and performance. As a member of the Attribute Enrichment team, your engineering expertise and collaborative efforts will directly enhance the quality and functionality of our solutions, driving customer satisfaction and engagement. This role is essential to delivering a robust service that meets the highest standards and enables data-driven features across our platform.

Challenges you will tackle

• Build a new service to deliver ML-generated enriched attributes to our customers
• Design a high-throughput, low-latency Badges service for heavy traffic
• Develop Constructor's Attribute Enrichment product and Badges product features
• Deploy high-available services in the cloud and implement CI/CD pipelines following best industry standards (AWS, Jenkins, GitHub Actions)
• Set up service observability, monitoring metrics, and alerting (Prometheus, Grafana, PagerDuty, AWS CloudWatch)
• Work with a dedicated database to manage enriched items, their metadata, and derived attributes for our customer dashboard application, ensuring data consistency, performance, and availability for downstream services and APIs
• Write and maintain unit, integration, and end-to-end tests for backend services to ensure code quality and service reliability
• Collaborate with technical and non-technical business partners to develop / update service functionalities
• Communicate with stakeholders within and outside the team

Requirements

• Strong computer science background & familiarity with networking principles

• Proficiency in Python and backend development patterns
• Experience in designing, developing & maintaining highload real-time services and public APIs
• Experience with any of the major public cloud providers: AWS, Azure, GCP
• Hands-on experience with setting up and improving CI/CD pipelines
• Experience with NoSQL and relational databases, distributed systems, and caching solutions would be a plus
• Skilled in setting up and managing observability tools like Prometheus, Grafana, and integrating alert systems like PagerDuty would be a plus
• Experience with any compiled programming language (e.g. Go, Rust) would be a plus
• Experience writing unit and integration tests for backend services using frameworks such as Pytest, unittest, or equivalent
• Experience collaborating in cross-functional teams
• Excellent English communication skills

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
• 💵 This position has a base salary range between $80k and $120k USD. The offer varies on many factors including job related knowledge, skills, experience, and interview results.
• 🎉 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.