Chinese artificial intelligence heavyweight DeepSeek has recruited a former Jane Street star engineer to its new AI “harness” team, as it looks to ensure it does not fall behind in the agentic AI era. Cui Tianyi joined the Hangzhou start-up in March, according to a post on his LinkedIn profile on Tuesday, after four years at Hong Kong-based quantitative trading firm TSY Capital, which he co-founded in 2022. The engineer previously spent nearly nine years as a software developer and researcher at...