Backend Engineer – Ranking

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Constructor

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2015

☁️ SaaS

🤖 Artificial Intelligence

🛍️ eCommerce

💰 $25M Series B - Constructor on 2024-06

SaaS • Artificial Intelligence • eCommerce

Constructor is an AI-native, API-first platform that provides product search and discovery solutions optimized for e-commerce. The company offers a commerce reasoning engine and a suite of features — search, autosuggest, personalized recommendations, AI shopping agents, attribute enrichment, retail media, and cross-channel discovery — to help retailers and enterprises deliver personalized discovery experiences across onsite and offsite touchpoints. Constructor positions itself as a specialist in product discovery for both B2C and B2B retail, integrating with existing tech stacks and emphasizing transparent, explainable AI for merchandising and conversion optimization.

📋 Description

• Improve the e-commerce experience for hundreds of millions of users across the world by designing, delivering & maintaining high-load real-time web services in close collaboration with other engineers. • Build, deploy, and support robust high-load machine learning-based real-time systems for search and browse experiences. • Collaborate with technical and non-technical business partners to develop and update ranking functionalities. • Develop Ranking Platform for internal users (DS and MLE mostly). • Optimize current ranking service performance to process requests faster. • Optimize signals delivery and retrieval (aka Feature Store) for machine learning model inference. • Communicate with stakeholders within and outside the team.

🎯 Requirements

• Experience in designing, developing & maintaining high-load distributed real-time services (in cloud) • Proficiency in Infrastructure as Code (IaC) tools like CloudFormation or Terraform for managing cloud resources. • Experience with MLOps is a huge plus (delivering, loading, and serving ML models and related infrastructure) • Hands-on experience with setting up and improving CI/CD pipelines • Proficiency with Python and, as a plus, compiled languages like C, Rust, or Go. • Experience in server-side coding for web services, and a good understanding of API design principles. • Experience with NoSQL and relational databases, distributed systems, and caching solutions. • Experience with any of the major public cloud formation: AWS (ideally), Azure, GCP • Experience collaborating in cross-functional teams. • Excellent English communication skills.

🏖️ Benefits

• 🧠 Work with smart and empathetic people who will help you grow and make a meaningful impact. • 🎉 Regular team offsite events to connect and collaborate. • 🌎 Fully remote team - choose where you live. • 🏝️ Unlimited vacation time - we strongly encourage all of our employees take at least 3 weeks per year. • 🛋️ 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. • 💵 Base salary: $80k–$120K USD, depending on knowledge, skills, experience, and interview results. • 📈 Stock options - offered in addition to the base salary.