We are seeking a highly skilled Senior Data Engineer with expertise in computer vision and machine learning to lead the development of an AI\-driven photo evaluation and personalized recommendation platform. In this role, you will build systems that intelligently analyze and rank photos for their potential as personalized physical products. This position offers the opportunity to combine semantic image understanding, aesthetic scoring, and behavioral personalization into a unified recommendation pipeline. *We accept* *CVs in English only.* **Responsibilities** * Design and build systems using CNN\-based models and transformer\-based vision models to analyze, score, and tag photos with metadata * Develop models for facial recognition, grouping, and expression analysis * Create contextual categories for photos, such as vacations, events, and portraits * Score images for aesthetic appeal and print\-worthiness * Develop object and scene detection models to extract meaningful photo metadata * Prototype and design custom transformer architectures tailored to product creation needs * Build scalable pipelines capable of processing large volumes of image data and generating structured, queryable metadata * Integrate image intelligence outputs with downstream applications, such as search, ranking, and personalization * Build and deploy transformer\-based ML models for analyzing user behavior and purchase patterns to create personalized product recommendations * Lead experimentation frameworks, such as A/B testing, to optimize recommendation relevance and user conversion rates * Develop, operate, and maintain the full ML model stack, ensuring robust deployment and system documentation * Collaborate with cross\-functional teams to operationalize model development and ensure seamless integration into production systems * Communicate effectively with stakeholders and team members, demonstrating a self\-driven approach **Requirements** * Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field, or equivalent professional experience * At least 3 years of experience in roles focused on software engineering or AI/ML * Deep expertise in computer vision techniques, including CNNs, vision transformers, facial recognition, object detection, image classification, and image embedding * Strong experience with recommendation systems, collaborative filtering, and deep learning for personalization * Advanced knowledge of transformer\-based models for recommendation systems * Proficiency in Python for building and deploying AI/ML solutions * Hands\-on experience deploying ML models at scale using tools like Docker, AWS, or GCP * Proven experience leading cross\-functional technical initiatives from ideation to delivery * Solid understanding of the ML lifecycle, including data management, model evaluation, explainability, and observability * Fluent English skills, both written and spoken, at a B2\+ level or higher **Nice to have** * Experience with ML libraries such as PyTorch or TensorFlow * Hands\-on experience with diffusion models, graph neural networks (GNNs), or reinforcement learning **We offer** * Learning Culture \- We want you to be the best version of yourself, that is why we offer unlimited access to learning platforms, a wide range of internal courses, and all the knowledge you need to grow professionally * Health Coverage \- Health and wellness are important, that is why we have you and up to four family members in a premiere health plan. We have a couple of options, so you can choose what is best for you and your family * Visual Benefit \- Seeing your work for us would be a sight for sore eyes. We want your vision to always be at 100% which is why we offer up to $200\.000 COP for any visual health expenses * Life Insurance Plan \- We have partnered with MetLife to offer a full\-coverage Ife insurance plan. So, your family is covered, even if you are gone. * Medical Leave Coverage \- We are one of the few companies that cover 100% of your medical leave, for up to 90 days. Your health is the most important thing to us * Professional Growth Opportunities \- We have designed a highly competitive and complete development process, where you will have all the tools to get where you have always wanted to be, personally and professionally * Stock Option Purchase Plan \- As an EPAMer you can be more than just an employee, you will also have the opportunity to purchase stock at a reduced price and become a part owner of our organization * Additional Income \- Besides your regular salary, you will also have the chance to earn extra income by referring talent, being a technical interviewer, and many more ways * Community Benefit \- You will be part of a worldwide community of over 50,000 employees, where you can learn, challenge yourself, stand out, and share your knowledge and experience with multicultural teams! *Please note that even though you are applying for this position, you may be offered other projects to join within EPAM.* EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi\-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting\-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.