Software Engineer: Query Team

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.

The Query Team sits at the forefront of shaping the search and autosuggest experience for our customers. We develop & optimize advanced query-processing techniques like autocompletion, spelling correction, and natural language processing, which aim to capture user intent and drive conversions. Our systems handle immense traffic, meaning your work will directly impact millions of users. As a mid-level engineer of this team, you will help shape, improve, and maintain our systems' infrastructure, and also implement features to further improve query processing, and better serve our customers' requirements.

You'll thrive in this role if you:

• have experience building and scaling high-traffic, high-availability backend systems.
• have a solid grasp of algorithms/data-structures and their trade-offs, particularly in the context of information retrieval.
• have designed and implemented infrastructure for backend systems (deployment automation, resource provisioning, system observability, etc.)
• enjoy picking up new tools and technologies and working across a variety of stacks
• collaborate effectively with others and contribute to a positive, solution-oriented team culture

• Development: Python / Rust
• Cloud Infra: AWS 
• CI/CD: Jenkins, GH Actions
• Monitoring: Prometheus, Grafana

• 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 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.