Constructor Logo

Constructor

Machine Learning Engineer: Ranking & Personalization

Reposted 6 Days Ago
Remote
Hiring Remotely in Ireland, IRL
Mid level
Remote
Hiring Remotely in Ireland, IRL
Mid level
Develop and maintain high-load, real-time personalization services for global e-commerce platforms. Improve shopper experiences and business KPIs through applied machine learning, user interaction modeling, personalization and recommender systems, hypothesis validation, and A/B testing. Collaborate with engineering teams and business stakeholders to research, deliver, and communicate personalization capabilities and outcomes.
The summary above was generated by AI
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.

RequirementsHard 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.

Similar Jobs

An Hour Ago
Remote or Hybrid
Ireland, IRL
Senior level
Senior level
Security • Cybersecurity
Manage and grow strategic channel partnerships across EMEA and Latin America by recruiting partners, executing joint business plans, driving pipeline and revenue, supporting sales and marketing programs, and enabling partner teams through training, certifications, account mapping, and pre-sales engineering. The role requires enterprise software channel expertise, partner development, executive communication, objection handling, and regional travel.
Top Skills: Automation SoftwareSecurity Software
2 Days Ago
Remote or Hybrid
Ireland, IRL
Senior level
Senior level
Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Biotech • Pharmaceutical
Leads the technical direction, architecture, and delivery of developer-facing desktop, web, and MCP surfaces for Pfizer’s internal developer platform. Provides hands-on software engineering leadership, ensures secure and privacy-first designs, guides cross-team delivery, mentors engineers, oversees code quality and DevOps practices, and leads incident response and continuous improvement. The role influences teams without direct reports and requires expertise across frontend, desktop, backend, developer tooling, enterprise software delivery, and technical architecture.
Top Skills: Ci/CdDevOpsElectronKanbanMicroservicesModel Context Protocol (Mcp)Restful ApisScrumVue
Entry level
Big Data • Food • Hardware • Machine Learning • Retail • Automation • Manufacturing
Lead data governance capability building for a global food safety data intelligence project. Ensure data quality, consistency, and governance standards across plants, suppliers, business units, and regions. Support solution implementation, assess project risks, confirm go-live readiness, provide hyper-care support, and deliver status reporting. Collaborate with quality, project, and multifunctional teams while applying analytical, project planning, stakeholder management, and manufacturing-process knowledge.
Top Skills: Data AnalyticsData Modeling

What you need to know about the Dublin Tech Scene

From Bono and Oscar Wilde to today's tech leaders, Dublin has always attracted trailblazers, with more than 70,000 people working in the city's expanding digital sector. Continuing its legacy of drawing pioneers, the city is advancing rapidly. Ireland is now ranked as one of the top tech clusters in the region and the number one destination for digital companies, with the highest hiring intention of any region across all sectors.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account