AI Engineers - Remote - ONLY MEXICO

About Scalepex Scalepex is a nearshore partner that empowers businesses to scale efficiently and effectively through exceptional services. With a strong focus on customer success, innovation, and cultural alignment, we support companies in building high-performing teams across industries. At Scalepex, we believe in fostering an environment where our people can thrive, grow their careers, and make a real impact. Role Overview What You’ll Do Start by building foundational AI capabilities and products, with opportunities to grow into leading teams and larger initiatives as they scale Lead the design and development of end-to-end AI applications — from prototype to production Work closely with founders, clients, and other engineers to shape both technical and product direction Build and deploy LLM-based systems, including RAG pipelines, fine-tuned models, and embedding search Own delivery of real-world solutions: architect, implement, test, ship Iterate rapidly: explore new tools, try new ideas, and solve problems creatively Operate with autonomy in a fast-changing environment — sometimes as the only engineer on a project Occasionally dive into adjacent areas like frontend, dev tooling, or data pipelines as needed Must-Have Skills Strong experience with modern AI techniques — LLMs, prompting, fine-tuning, RAG, vector databases Strong Python engineering background, with clean, modular coding practices Comfortable building systems in a solo or small-team setting with limited structure Familiarity with cloud deployment (AWS/GCP), Docker, and production ML pipelines Able to balance product thinking and engineering discipline Startup mentality: comfortable with ambiguity, fast iteration, and wearing many hats Excellent communication skills — able to work directly with clients and non-technical stakeholders Bonus Skills Experience in Conversational AI and Voice AI systems Knowledge of ML frameworks (PyTorch, scikit-learn, etc.) Exposure to frontend (JS/React) or dev tooling is a plus MLOps / CI/CD familiarity Contractor scheme 100% Remote