Constructor
Machine Learning Engineer: Personalization

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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.
Reasons to use Rodeo
Iβm in my final year doing Economics and I donβt know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer β it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) donβt need a masters. Letβs look at the ones youβd be competitive for now, and we can decide if a masters actually adds anything.
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Graduate Consultant β 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
Youβve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon β deadlines close within the month.
Experience fit
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Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right β and where to focus when applying.
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
- π§ Work with smart and empathetic people who will help you grow and make a meaningful impact.
- π Regular team offsite events to connect and collaborate.
- π Fully remote team - choose where you live.
- ποΈ Unlimited vacation time - we strongly encourage all of our employees take at least 3 weeks per year.
- ποΈ Work from home stipend! We want you to have the resources you need to set up your home office.
- π» Apple laptops provided for new employees.
- π§βπ Training and development budget for every employee, refreshed each year.
- πͺ Maternity & Paternity leave for qualified employees.
- π΅ Base salary: $80kβ$120K USD, depending on knowledge, skills, experience, and interview results
- π Stock options - offered in addition to the base salary


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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 donβt 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.
βIt took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what Iβve been looking for.β
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