Staff Machine Learning Engineer (AI)

TL;DR

Staff Machine Learning Engineer (AI): Leading the execution layer for a proactive AI chat application with an accent on building scalable, production-grade training and inference systems. Focus on implementing state-of-the-art model adaptation methods and ensuring high reliability, performance, and latency efficiency under real-world usage.

Location: Remote (China)

Company

hirify.global is building a proactive AI chat application designed to bring intelligence to everyday tasks, persistent context, and complex workflows.

What you will do

• Own end-to-end ML system architecture, covering data pipelines, training, evaluation, and deployment.
• Fine-tune and adapt models using advanced techniques like LoRA, QLoRA, SFT, and DPO.
• Design and operate inference systems, balancing cost, reliability, and latency.
• Establish evaluation pipelines for safety, robustness, and performance.
• Collaborate with engineering teams to integrate ML systems into cross-platform products.
• Manage production deployment including GPU optimization and scaling strategies.

Requirements

• Location: Must be based in China.
• Strong experience building and shipping production-grade ML systems for real users.
• Deep understanding of large models, their architecture, and failure modes.
• Proficiency in Python and deep learning frameworks such as PyTorch or JAX.
• Ability to write production-grade, maintainable code with a focus on system correctness.
• Strong communication and ability to work effectively in a small, high-trust environment.

Hiring process

• Evaluation by technical team members.
• 3 to 4 virtual or onsite interviews.