AI Research Engineer (Agentic Post-training)

This position is posted by Jobgether on behalf of a partner company. We are currently looking for an AI Research Engineer (Agentic Post-training) in Mexico. This role sits at the frontier of large language model development, focusing on advancing post-training techniques for agentic AI systems. You will contribute to shaping models that go beyond text generation to actively reason, plan, and execute tasks through tool use and function calling. The work spans research and engineering, with direct impact on production-grade AI systems deployed across real-world applications. You will design and improve training pipelines that enable models to operate reliably in multi-step, multi-tool environments. The environment is highly research-driven, collaborative, and fast-paced, bringing together experts in AI systems, multimodal learning, and distributed training. Your contributions will directly influence the next generation of intelligent, autonomous AI agents capable of operating on both c...