We are looking for a proactive **Senior AI Engineer** to create advanced AI solutions within a dynamic team dedicated to AI projects. You will leverage large language models and state\-of\-the\-art AI frameworks to develop scalable AI applications. Join us to innovate and contribute to transformative AI initiatives that make a real impact. 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. **Responsibilities** * Develop AI applications in Python utilizing large language models * Debug and enhance AI software components for optimal performance * Craft and refine prompts and workflows to improve LLM effectiveness * Construct and manage REST APIs with integrated AI features * Investigate and assess new AI technologies and tools * Engage in agile collaboration with multidisciplinary teams * Keep abreast of AI advancements and apply novel methods * Support AI projects including chatbot development and process automation * Work independently with strong accountability for deliverables * Communicate clearly with stakeholders and team members **Requirements** * Proven experience developing and debugging Python applications with at least 3 years * Strong proficiency in prompt engineering and fine\-tuning large language models * Comprehensive understanding of large language model architectures and applications * Skilled in using Pydantic for data validation and configuration management * Hands\-on experience with AI frameworks like LangChain or equivalent * Knowledge of AI\-driven engineering assistants such as GitHub Copilot or Gemini CLI * Familiarity with AWS cloud services and related infrastructure * Background in agile, project\-oriented environments * Excellent problem\-solving and analytical capabilities * Upper\-Intermediate level English proficiency (B2\) **Nice to have** * Familiarity with workflow automation tools like n8n, Make, or Zapier **We offer** * Connectivity Bonus (25,000 ARS are paid with a salary receipt at the end of each month as a non\-wages concept). * Medicina Prepaga (It covers the collaborator and direct family group). * Paternity Leave (Two additional days are added to what is established by law, total of 4 days). * Discounts card. * English Training (English lessons, twice per week). * Training Program (Access to multiple customized training plans according to the needs of each role within the company). * Marriage bonus (The company doubles the allowance established by law that ANSES offers). * Referral Program (Referral bonus is paid when the referral of a collaborator joins the Company). * External Agreements and Discounts. * Vacations: 14 calendar days a year *By applying to our role, you are agreeing that your personal data may be used as in set out in EPAM´s Privacy Notice and Policy.*