Machine Learning Engineer: Ranking & Personalization

Constructor; United States; Remote; USD 80,000 - 120,000; Full time

Benefits offered by this job

Fully remote team

Unlimited vacation

Work from home stipend

Apple laptops provided

Training budget

Maternity & Paternity leave

Stock options

Job summary

Constructor.io is seeking a machine learning professional to join the Personalization team. You will design, build, and operate high‑load real‑time personalization services that improve the e‑commerce experience for shoppers worldwide.

Requirements include 3+ years in applied ML, Python/SQL proficiency, and experience shipping personalization or ranking systems. This fully remote role offers a base salary of $80k–$120k USD plus stock options and a home‑office stipend.

Qualifications

• 3+ years of professional experience in applied machine learning.
• Proficiency with Python, SQL and the big data stack for end-to-end ML product development.
• Experience building, shipping, and maintaining personalization / recommender / ranking systems in production.
• Experience with any of the major public cloud platforms will be a plus.
• Experience with design and analysis of A/B tests.
• Great skills delivering & communicating business value to stakeholders.

Responsibilities

• Improve personalized experience across different products, domain verticals and platforms.
• Improve business KPIs by validating hypotheses around personalization.
• Research different personalization approaches to provide the best outcome to the business.
• Model user interactions to provide the best experience to shoppers.
• Collaborate with technical and non-technical business partners to develop and update personalization capabilities.
• Communicate with stakeholders within and outside the team.

Skills

Applied ML

Python

SQL

Personalization systems

A/B testing

Cloud platforms

Tools

Big data stack

Job description

About the Team

Launched in 2019, Constructor is an AI-first ecommerce 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.

As a member of the Personalization team, you will improve the e-commerce experience for hundreds of millions of users across the world by designing, delivering & maintaining high-load real-time services in close collaboration with great engineers both within the team and across other teams such as the Ranking team. The general goal of the Personalization team is providing best-in-class personalization for all e-commerce experiences provided by Constructor. The job can consist of, but is not limited to:

• Improve personalized experience across different products, domain verticals and platforms

• Improve business KPIs by validating hypotheses around personalization

• Research different personalization approaches to provide the best outcome to the business

• Model user interactions to provide the best experience to shoppers

• Collaborate with technical and non-technical business partners to develop and update personalization capabilities

• Communicate with stakeholders within and outside the team

We love working together to help each other succeed, and are committed to maintaining an open, cooperative culture as we grow. We get to the right answer with empathy, ownership and passion for making an impact.

Requirements

Hard skills

• 3+ years of professional experience in applied machine learning

• Proficiency with Python, SQL and the big data stack for end-to-end ML product development

• Experience building, shipping, and maintaining personalization / recommender / ranking systems in production

• Experience with any of the major public cloud platforms will be a plus

• Experience with design and analysis of A/B tests

• Great skills delivering & communicating business value to stakeholders

Soft skills

• Excellent English communication skills

• Experience collaborating in cross-functional teams

• Ability to deep dive into problems and provide actionable outcomes

• Ability to work autonomously and independently

• Proactivity

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

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.