Senior AI Engineer

About the Position

We're seeking a Senior AI Engineer with hands-on experience in building and deploying recommendation systems to join our Core Technologies | Data & AI team.

Responsibilities

• Develop real-time recommendation engines: Build product and bundle recommendation engines, including dynamic slot placement optimized for conversion and margin.
• Build targeted promotion algorithms: Develop personalized coupon and points issuance, behavioral triggers, and dynamic bundling.
• Scale customer segmentation across markets: Expand the segmentation engine to support behavioral, demographic, psychographic, and lookalike audiences, including wallet push.
• Extend personalization across touchpoints: Apply personalization models across web, app, and in-store employee touchpoints.
• Own end-to-end ML pipelines: Build and operate pipelines from feature preparation in BigQuery and Snowflake through deployment and monitoring.
• Measure business impact through experimentation: Design and evaluate A/B tests to demonstrate the business impact of each model.

Requirements

• Must have

  • Hands-on experience building ranking or recommender systems that run in production.
  • Strong Python and SQL skills, with experience using TensorFlow or PyTorch.
  • Solid understanding of model evaluation and validation, including offline metrics and online performance.
  • Experience designing and analyzing A/B tests and experiments to measure model and business impact.
  • Practical MLOps experience, including ML pipelines, model deployment, performance monitoring, and CI/CD.
  • Experience with cloud data warehouses, ideally BigQuery and/or Snowflake, and pipeline orchestration with Airflow.
  • Fluent English for working in an international team.

• Nice to have

  • Experience deploying and serving models in real time or with low latency.
  • Experience with promotion targeting, pricing, or uplift modeling, including personalized coupons and product bundling.
  • Experience building customer segmentation and lookalike models across multiple markets.
  • Familiarity with infrastructure as code using Terraform.
  • Experience with GCP machine learning tools, such as Vertex AI.
  • Experience building personalization solutions for retail or e-commerce.

We Offer

• Competitive salary
• Comprehensive benefits program covering physical, emotional, social, and work-life wellbeing
• Opportunities for professional growth and development
• Collaborative and inclusive work environment

About the Company

Accesa is a leading technology company headquartered in Cluj-Napoca, with offices in Oradea and 20 years of experience in turning business challenges into opportunities and growth. A value-driven organization, it has established itself as a partner of choice for major brands in Retail, Manufacturing, Finance, and Banking. With more than 1,200 IT professionals, Accesa is an employer of choice for IT professionals passionate about problem-solving through technology.

As a people-first organization, we believe diversity strengthens our teams and drives innovation. All employment decisions are based on merit, skills, and performance, without discriminating based on any personal characteristic. This reinforces our commitment to providing an inclusive and respectful workplace.