Lead Data Scientist

Ascendion is a full-service digital engineering solutions company. We make and manage software platforms and products that power growth and deliver captivating experiences to consumers and employees. Our engineering, cloud, data, experience design, and talent solution capabilities accelerate transformation and impact for enterprise clients. Headquartered in New Jersey, our workforce of 6,000 Ascenders delivers solutions from around the globe. Ascendion is built differently to engineer the next. Ascendion | Engineering to elevate life We have a culture built on opportunity, inclusion, and a spirit of partnership. Come, change the world with us: Build the coolest tech for world’s leading brands Solve complex problems – and learn new skills Experience the power of transforming digital engineering for Fortune 500 clients Master your craft with leading training programs and hands-on experience Experience a community of change makers! Join a culture of high-performing innovators with endless ideas and a passion for tech. Our culture is the fabric of our company, and it is what makes us unique and diverse. The way we share ideas, learning, experiences, successes, and joy allows everyone to be their best at Ascendion. Role: Lead AI Engineer OR Lead Data Scientist Location: Mexico City (hybrid) Employment Type: Full-time Key Responsibilities: • Lead and mentor a 10-person team of AI Engineers and Data Scientists • Act as the main point of contact for Engineering, Product, and Data stakeholders • Define architecture and design for LLM and RAG-based applications • Build and deploy applications leveraging LLMS (e.g., GPT, Claude, Sonnet) • Design and implement RAG pipelines o chunking, ranking, vector search, and embedding strategies • Guide prompt engineering efforts – from design to evaluation using LLMs "LLM as a judge" • Drive hands-on development of scalable, production-grade ETL pipelines • Ensure adherence to best practices in containerization (Docker) and orchestration (Kubernetes) • Own sprint planning, technical prioritization, and task delegation across the team • Implement CI/CD processes using tools such as Jenkins, Terraform, and AWS services (e.g., S3, Lambda) • Evaluate and integrate vector databases (e.g., Solr, OpenSearch) into production applications • Maintain a high standard of code quality, documentation, and operational readiness • Balance leadership duties with individual contributions (approx. 50/50 split) • Champion a collaborative, proactive, and agile engineering culture Must-Have Skills: • Strong proficiency in Python for scripting and data workflows • Production experience with LLM architectures and RAG implementations • Deep understanding of prompt engineering and multi-step LLM prompt chaining • Experience with SQL, NoSQL, and vector database technologies (Solr, OpenSearch) • Solid AWS knowledge – especially S3 and Lambda • Familiarity with CI/CD pipelines, Terraform, and containerized deployment • Experience working cross-functionally and leading in Agile environments • 2–3 years of technical team leadership or people management experience • Excellent communication skills and the ability to translate business needs into technical solutions

Location: Tenochtitlán, Chiapas, MX

Posted Date: 8/29/2025