DeepSeek Engineer: I Optimize the Operators That Will Eventually Replace Me

minzhu0305 · reddit · 2026-09-16

Liu Sheng, author of DeepSeek v4.1's main Attention operators, shares a candid long essay on being an engineer in the age of accelerating AI.

AI's progress in operator work: In just one year, AI evolved from a documentation-reading assistant into an operator expert that independently reads CUDA/PTX/SASS and optimizes using latency-profiling tools. He expects AI-written operators to match or surpass his within 6-12 months — AI processes 300 tokens per second and its depth, tool use and parallelism keep improving.

Why keep going: Writing operators brings him speedrunner-like joy, and slacking off wouldn't help anyway — other companies' models would render him obsolete. "If revolution is inevitable, I want to be the one who overthrows myself."

On his future: He won't be "unemployed" but will have to "switch careers" — likely keeping a job while no longer doing what he loves. He believes his vision, judgment and initiative will keep him at the table for the next wave.

Related event: DeepSeek Kernel Engineer Writes: I'm Accelerating My Own Replacement by AI(8 posts)→

Original post →

More from AGI Musings

AGI Musings channel →