Вакансии constructor.io: работа в IT и digital

About Us

Launched in 2019, Constructor is an AI-first e-commerce search and discovery platform that helps shoppers find the right products at the right time and enables leading global e-commerce brands to drive meaningful revenue and conversion gains.

About The Role

The ML Infrastructure team builds and operates the shared backend services and platform capabilities that Constructor's ML and product teams rely on to develop, deploy, and run machine learning at scale—from model serving (including LLMs) to the specialized storages and data pipelines behind it.

We are a service team by nature: our roadmap is shaped by the needs of product teams, and we succeed when they can move faster with less friction. We're looking for a Senior Backend Engineer who is comfortable with and motivated by this dynamic, and who will take end-to-end ownership of core services.

In the near and mid-term, our focus areas include:

• Making ML workloads easy to run, scale, and operate for every team.
• Providing self-service, configurable infrastructure components to ML and product teams.
• Owning and evolving core ML services and related pipelines with a high bar for reliability and performance.

Challenges you will tackle

• Design, build, and operate high-load distributed backend services that power the company's ML infrastructure.
• Take end-to-end ownership of core ML services and related data pipelines: from design and implementation to deployment, observability, and continuous improvement.
• Partner with ML and product teams to understand their needs and turn them into reliable, reusable platform capabilities.
• Make and defend technical decisions: evaluate trade-offs, design first, and own the outcome.
• Be responsible for what you and your team do.

Requirements

• 5+ years of professional experience in backend or platform engineering.
• Extensive Python knowledge (our primary language).
• Hands-on experience developing on a public cloud (AWS, GCP, or Azure) or with self-managed Kubernetes—AWS is our primary platform, but we're not limited to it.
• Experience designing and building distributed, high-load services and APIs.
• Strong knowledge of data structures, algorithms, and their trade-offs.
• Design-driven engineering mindset: we're a coding-assistant-friendly environment and expect you to use modern AI tools—but you lead with system design and a strong understanding of their applicability and trade-offs.
• Ownership and proactivity: you can't close your eyes to problems, but are ready to solve them and take responsibility for outcomes.
• You are friendly and willing to help your teammates & others.

Nice to have:

• Experience with Rust (or C/C++/Go)—a strong plus.
• Experience developing or contributing to ML platforms or ML infrastructure—a strong plus.
• Experience setting up and operating any vector database (Qdrant, Milvus, Weaviate, OpenSearch, pgvector, etc.)—a strong plus.
• Experience with model serving / inference infrastructure, including LLMs.
• Experience with Infrastructure as Code (Terraform or similar).

Benefits

• Unlimited vacation time—we strongly encourage all of our 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 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.
• Base salary: $80k–$120k 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.

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.

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 that loves 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 Team

The Core Team sits at the heart of Constructor, shaping Constructor’s in-house search engine, where user requests meet customer catalogs and Constructor’s learnings. We build and operate the foundational systems that power every request flowing through the platform, enabling fast, reliable, and intelligent interactions at massive scale.

Our systems handle billions of requests daily with exceptional uptime, and we take pride in delivering a highly scalable, resilient, and globally distributed platform. As part of the Core team, you will help design, build, and maintain the critical infrastructure and services that underpin the entire product, ensuring performance, stability, and reliability across the globe.

Requirements

You’ll thrive in this role if you:

• Have a strong foundation in computer science, including algorithms, data structures, concurrency, and systems design.
• Have experience building and scaling high-traffic, high-availability backend systems.
• Have experience designing and operating backend infrastructure, including deployment automation, capacity planning, and observability.
• Are comfortable working across different layers of the stack, from performance-critical code to production operations.
• Enjoy learning new technologies and tools in a fast-moving, large-scale environment.
• Collaborate effectively and contribute to a positive, ownership-driven team culture.

Our Tech Stack

• Languages: Rust, C++, Python.
• Cloud Infrastructure: AWS.
• CI/CD: Jenkins, GitHub Actions.
• Monitoring & Observability: Prometheus, Grafana.

Benefits

• Unlimited vacation time — we strongly encourage all of our 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 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.
• Base salary: $80k–$120k 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.

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.

How we handle your data. By submitting this application, you acknowledge that Constructor will collect and process the personal data you provide for the purpose of evaluating your candidacy for this role. If you are not selected, we will retain your data for a limited period as described in our Recruitment Privacy Notice. After that period, your data will be deleted or anonymized.

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 Position

You'll be designing the future of product discovery. Constructor powers search and recommendations for some of the world's largest retailers, and your work will shape how we show that to prospective customers. You'll own the demo experience: how big brands first see what's possible, and how they imagine their own shoppers using it. You'll also work on onboarding, helping customers go live faster with less friction. It's a mix of vision work and practical tooling, with real impact on how Constructor grows.

About You

You're a product designer who owns problems, not screens. You're comfortable with ambiguity, can partner with PMs to shape direction, and know how to translate research insights into production-ready interfaces, working closely with engineers. You ship work that matters.

Beyond being a thoughtful designer, user advocate, and strong collaborator, here are a few things we really value:

• A goal-oriented, iterative mindset — You focus on solving high-impact problems and are comfortable learning, improving, and shipping quickly.
• Practical experience with research — You’ve led user interviews, usability tests, and data analysis.
• Experience designing for unfamiliar problems — You’ve worked on products where you had to understand complex workflows outside your own experience—especially in B2B contexts.
• Experience turning ambiguity into structure — You spot patterns, define systems, and design scalable, reusable solutions.

Requirements

• Visual Strategy: Defining a bold, new design aesthetic for the e-commerce demo site that visually represents “Product Discovery 2027”.
• Interaction Design: Mapping out user flows and interactions for new, cutting-edge features that leverage AI/LLMs (details to be provided in the project brief).
• High-Fidelity Mockups: Delivering final mockups and assets for all key pages and states (homepage, search results, product detail page, filtering/sorting experience, etc.).
• Component Library: Ensuring all new designs are scalable and align with the existing/evolving Constructor design system.

Benefits

• Unlimited vacation time - we strongly encourage all of our employees to take at least 3 weeks per year.
• A competitive compensation package including stock options.
• 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.

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.

Fully remote position, open to candidates based anywhere outside of Russia.

About us

Constructor is the next-generation platform for search and discovery in e-commerce, 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 e-commerce 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

The Experiments team at Constructor builds an experimentation platform: traffic allocation, exposure logging, metric computation, statistical analysis, and a UI for launching experiments and interpreting results. It’s used both internally and by customers running experiments on production traffic.

We’re scaling customer experimentation usage and investing in making experiments faster, more reliable, and easier to interpret. Unlike boxed experimentation tools, our platform has to support a wide range of customer integrations, traffic patterns, and industry constraints — which makes the engineering problems unusually real-world and high-leverage.

Team: 3 Software Engineers, 1 Data Analyst, an Engineering Manager, and a Product Manager.

The Role

This is primarily a backend role (Python services + data-heavy systems). You’ll occasionally work in the Dash UI and contribute to Spark jobs, but those are not the main focus. We care about correctness, observability, and product usability more than complex infrastructure.

Tech: Python, FastAPI, PostgreSQL, Plotly Dash, PySpark/Databricks, AWS, CloudWatch, Sentry

(Spark work is ~5–10% — we don’t expect you to be a data engineer or own the data platform.)

What you’ll do

• 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).

You’ll collaborate closely with Search/Recommendations engineers, ML/DS partners, and customer-facing teams when needed. This role does not require frequent direct customer calls.

Requirements

Must-have

• 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.

Nice-to-have

• Experience with experimentation systems, metrics platforms, or A/B testing workflows.
• Experience with PySpark and/or Databricks.
• We don’t expect you to already be an expert in experimentation methodology — but we do expect strong backend fundamentals and the ability to ramp up effectively in a data-heavy domain.

Location / Time Zones

• We’re a distributed team. Preferred time zones are UTC+1 to UTC+7, but we’re flexible.

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–$120k 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.

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.

About Us

Constructor is the next-generation platform for search and discovery in e-commerce, 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 e-commerce 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.

Role Overview

Machine Learning Recall team builds and optimizes ML/DL models to improve customer experience by providing the best results in terms of relevancy (looks effective) and marginality (be effective). We're looking for a Senior MLE who will help us with that.

In the second part of 2025, we plan to focus our attention on:

• Recall: we don't want to lose good results.
• Visual solutions: we would like to deliver end-to-end visual solutions for our customer, including (but not limited to) image search, shop the look, visual recommendations, etc.
• Technical platform: we have many different technologies/models inside a team, and we would like to allow other teams to use them widely and integrate in their pipelines.

Challenges you will tackle

• Build and deploy robust ML systems for search (including text/image & multimodal approaches, etc).
• Tune LLMs to improve our system in different aspects, not limited to what we already have.
• Improve business KPIs by using new techniques/models and validating hypotheses.
• Collaborate with other technical teams to exchange experiences to improve the overall system.
• Be responsible for what you and your team do.

Requirements

• 3+ years of professional experience in applied machine learning.
• Excellent NLP knowledge (especially transformer-based approaches).
• Comprehensive knowledge of classical machine learning.
• Extensive Python knowledge.
• Experience with any DL framework (we’re using torch).
• Experience with any SQL dialect (we’re using SparkSQL, MySQL and a couple more dialects).
• You have delivered production ML systems.
• Proficiency with big data stack for end-to-end ML product development (we’re using PySpark for most of our pipelines).
• You are able to translate intuition into data-driven hypotheses that result in engineering solutions that bring significant business value.
• Proactivity: you can't close your eyes to problems, but are ready to solve them.
• You are friendly and willing to help your teammates & others.

Nice to have:

• Experience designing, conducting, and analyzing A/B tests.
• Experience with Rust (or C/C++).
• Experience with a public cloud like AWS, Azure, or GCP.
• Strong knowledge of data structures, algorithms and their trade-offs.
• Empathy.
• Ability to explain difficult concepts.
• You love to work on performance optimization, such as increasing result quality and improving code performance.

Benefits

• Unlimited vacation time - we strongly encourage all of our 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 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.
• Base salary: $80k–$120k 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.

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.