We are looking for a **Senior Python Developer** to join our team. You will be responsible for building efficient client wrappers and server code for high\-volume production environments, enabling seamless interaction with LLM APIs via HTTP. This role focuses on robust integration and performance, not on training or experimenting with AI models. 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** * Create and orchestrate LLM\-powered user experiences for end users * Develop Python API server code to handle requests from single or multiple front\-end clients * Build innovative LLM client code optimized for high\-traffic production use * Integrate and utilize the latest LLM models and services * Develop intuitive prompting frameworks to support prompt engineers and subject matter experts * Write SQL queries and contribute to database schema design * Participate in high\-level architecture discussions within the CoCounsel AI Skills team and collaborate with other teams **Requirements** * Bachelor’s or Master’s degree in Computer Science or a related field * At least 3 years of production\-level experience in software engineering, preferably on an engineering or product team * Advanced proficiency in Python * Strong experience with HTTP API development, including FastAPI and REST API * Proficient in SQL for database management and queries * Experience with Docker for containerization * Familiarity with stages of the machine learning lifecycle, such as data labeling, curation, cleaning, model training, evaluation, and serving * Excellent analytical and problem\-solving skills * Ability to work independently and as part of a collaborative team * Demonstrated strong software engineering judgment * Fluent English communication skills, both written and spoken, at B2\+ level or higher **Nice to have** * Experience with monitoring and logging tools such as Kibana * DevOps experience with Kubernetes * Knowledge of Large Language Models (LLM) * Experience using large language models through code, including services from OpenAI, Anthropic, Cohere, or open\-source models like Llama and Mistral * Familiarity with LLM prompting techniques **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.*