Chinese artificial intelligence start-up DeepSeek is rapidly expanding its new Harness team as it pushes itself into the booming AI agent market, joining the high-stakes global race to transform foundational language models into fully autonomous products.

Cui Tianyi, the former Jane Street quantitative trading expert who joined DeepSeek in March to head the Harness team, said on social media platform X on Saturday that the newly formed group was facing an acute shortage of talent despite its ambitions.

“I interview candidates every day and post recruitment ads across various platforms,” Cui wrote.

The hiring blitz is part of an urgent effort to build DeepSeek’s next generation of AI tools. The rise of advanced coding products over the past year, such as Anthropic’s Claude Code, has thrust harness architecture into the industry spotlight, turning it into a critical battleground for companies trying to unlock commercial utility.

Last month, Chen Deli, a senior researcher at the company, disclosed on X that the team was building “CodeHarness from the ground up”, hinting that the initiative could eventually culminate in a stand-alone product called “DeepSeek Code”.

In AI engineering, a harness acts as the software layer that connects a foundation model to external tools and execution environments. While the underlying model serves as the “brain”, the harness functions as the nervous system – managing context, invoking tools, reading and writing files, and coordinating workflows to let the AI complete tasks autonomously.