AI Engineer (Python / LLM / Agents) - Senior (Brazil / Argentina)

Description

Summary: Seeking a Senior AI Engineer to design, build, and scale AI-powered systems in high-impact environments, taking end-to-end ownership from system design to production. Highlights: 1. Design, build, and scale AI-powered systems for real-world applications 2. End-to-end ownership of AI systems, from design to production 3. Develop LLM-based pipelines and agent workflows **AI Engineer (Python / LLM / Agents) \- Senior** ------------------------------------------------- Remote (Argentina / Brazil) / Hybrid (Sao Paulo) Full\-time English C1\+ About the role We’re looking for a **Senior AI Engineer** to design, build, and scale AI\-powered systems used in real\-world, high\-impact environments. You’ll work on building production\-grade AI applications, including **LLM\-based pipelines, agent workflows, and real\-time inference systems**, collaborating closely with product and domain experts. This is an **end\-to\-end ownership role**, from system design to production, including performance, reliability, and continuous improvement. What you’ll do * Design and build **Python microservices (FastAPI)** for real\-time inference and data processing * Develop and maintain **LLM\-based pipelines and agent workflows** * Own AI systems end\-to\-end (design, deployment, monitoring, optimization) * Integrate AI models into production systems * Build evaluation and monitoring systems for model performance * Optimize performance, latency, and cost of AI systems * Collaborate with cross\-functional teams to translate business needs into technical solutions What we’re looking for * Strong experience in **backend development with Python** * Experience building **production AI systems (not just models)** * Hands\-on experience with: + LLMs and agent\-based systems + RAG pipelines, vector databases, or similar * Experience designing scalable systems (high traffic / real users) * Experience working with APIs and microservices * Strong problem\-solving and ownership mindset * **Fluent English (C1\+), required for daily communication** Nice to have * Experience with frameworks like **LangChain, LangGraph or similar** * Experience with **FastAPI** * Experience with **vector databases or graph databases** * Experience in high\-growth or startup environments * Experience in regulated industries (e.g. healthcare, fintech) Work model * Remote (Argentina or Brazil) / Hybrid (Sao Paulo) * Full\-time * International team Note This role requires strong hands\-on experience building AI systems in production environments. We are not looking for purely academic or research profiles. How to apply Please apply directly following the link. If it does not suit you, please share it with your colleagues. Thanks!