Senior AI Engineer

About the Position

Are you a forward-thinking professional with a passion for artificial intelligence and advanced analytics? Join EPAM Systems as a Senior AI Engineer in Spain and help shape the future of AI-driven business and scientific insights. You will be at the forefront of developing and deploying AI products that drive competitive intelligence and strategic decision-making.

Responsibilities

• Design and deliver production-grade AI systems for stakeholders, including LLM-powered applications for strategy teams
• Develop multi-agent architectures for strategy workflows including data collection and human-in-the-loop controls
• Build retrieval and vector-based systems over external data sets
• Work within an agile framework and in cross-functional teams to align AI solutions with business goals
• Engage internal stakeholders for the successful delivery of AI solutions
• Continuously monitor and optimize AI models to improve accuracy and efficiency, ensuring solutions are scalable, reliable and well-maintained
• Document processes, models and key learnings and contribute to building internal AI capabilities
• Ensure AI models adhere to ethical standards, privacy regulations and fairness guidelines
• Collaborate with external AI companies where required

Requirements

• Proficiency in Python and software engineering best practices
• Strong hands-on experience with LLMs, embeddings, RAG pipelines and vector databases
• Experience designing or implementing multi-agent systems or tool-calling frameworks
• Implementing evaluation frameworks for accuracy, coverage interpretation, decision consistency and bias
• Experience with distributed systems and microservices
• Strong understanding of data structures and algorithms
• Knowledge of API design and development
• Experience working with a multi-disciplinary team
• Excellent problem-solving skills and attention to detail
• Strong communication and collaboration skills

Nice to Have

• Experience developing and deploying agentic AI systems including autonomous agents and multi-agent workflows
• Hands-on expertise with Retrieval Augmented Generation (RAG) techniques and their integration with Large Language Models
• Practical experience fine-tuning, customizing or implementing Large Language Models (LLMs) such as GPT, Llama or similar
• Knowledge of ML monitoring and observability
• Contributions to open-source ML projects or libraries
• Experience with high-performance computing
• Knowledge of software design patterns
• Experience with ML deployment platforms such as KubeFlow or MLflow
• Knowledge of serverless architecture patterns
• Understanding of cloud cost optimisation for ML workloads
• Experience with infrastructure-as-code such as Terraform or CloudFormation

We Offer

• Flexible work setup, allowing for remote work or a hybrid arrangement, with occasional office visits

About the Company

EPAM Systems is a global software engineering and product development company, delivering digital transformation and technology innovation to the world’s leading companies.