Job Summary: A professional responsible for fine-tuning and optimizing large language models (LLMs), deploying LLMs at scale, and building native AI products. Key Highlights: 1. Developing scalable LLM APIs and interactive front-ends for AI agents. 2. Working with ecosystems such as Hugging Face, QLoRA, Pinecone, and LangChain. 3. Building vector databases and embeddings. Swift’s mission is to nourish a better life through quality products, great cuisine, and friendly service that helps create memorable moments at our customers’ tables. Our mission also extends to the lives of every employee who represents our brand. Here, we care for our people because we believe they are our most valuable asset—providing a light-hearted, pleasant work environment where everyone is respected and valued, regardless of race, gender, ethnicity, sexual orientation, or disability. Moreover, at Swift, we work hard to ensure our team grows with us, building an exciting career alongside us and having the opportunity to make a difference. So, if you identify with our way of being and want to help build this story, we invite you to join our team! **Responsibilities and Duties** The professional will be responsible for fine-tuning and optimizing large language models (LLMs), adjusting hyperparameters, building vector databases (vector DBs) and embeddings. Focused on scaling LLM deployment (ROLLMOps) and developing native AI products—integrating artificial intelligence into software and legacy systems—while creating scalable LLM APIs and interactive front-ends for AI agents. **Requirements and Qualifications** Experience required as a Developer with a focus on AI; Knowledge of LLM fine-tuning, inference optimization and quantization, RAG pipeline management, API development and AI integrations. Front-end design for Generative AI, AI security and compliance (PII Masking); Ecosystem: Hugging Face, QLoRA, Pinecone, LangChain, LlamaIndex, AI SDK. **Additional Information** At Swift, we offer several benefits you can enjoy as soon as you begin your journey with us! Check some of them below: * Meal Allowance, usable as you wish; * On-site cafeteria; * Transportation Allowance; * Swift Experience (a differentiated product offered monthly so all our employees can try, savor, and refine their sales arguments); * Access to Sempre JBS (internal app): * Sempre Cuida: provides free access to support your well-being (mental, physical, nutritional health, among others); * Sempre Educa: offers corporate training content to encourage your professional development; * Sempre Cresce: dedicated to career opportunities within the JBS Group, enabling you to grow with us! * Store purchases with payroll deduction; * Partnership with Gympass (gym membership program); * Medical/Dental Assistance and Life Insurance (optional); * Discounts at Educational and Language Institutions (optional). We are a multichannel retailer specializing in frozen proteins. From beef to seafood, we have everything our customers need. We consistently focus on excellence, food safety, sustainability, and innovation. We operate over 500 stores across multiple formats: physical stores, stores located inside major supermarkets, mobile stores circulating across condominiums in various cities, and an online store enabling customers to purchase however, whenever, and wherever they choose. Our role is to get ever closer to our customers—through a high-quality, fair-priced, pleasant, convenient, and safe shopping and consumption experience—feeding the world with the best.