> What previously would've taken a multi-man team weeks of planning and executing, stand ups, jour fixes, architecture diagrams, etc. can now be done within a single week by myself.

This has been my experience. We use Miro at work for diagramming. Lots of visual people on the team, myself included. Using Miro's MCP I draft a solution to a problem and have Miro diagram it. Once we talk it through as a team, I have Claude or codex implement it from the diagram.

It works surprisingly well.

> They are amazed however that what has taken months previously, can be done in hours nowadays.

Of course they're amazed. They don't have to pay you for time saved ;)

> reap benefits of LLMs for as long as they don't replace me > What previously would've taken a multi-man team

I think this is the part that people are worried about. Every engineer who uses LLMs says this. By definition it means that people are being replaced.

I think I justify it in that no one on my team has been replaced. But management has explicitly said "we don't want to hire more because we can already 20x ourselves with our current team +LLM." But I do acknowledge that many people ARE being replaced; not necessarily by LLMs, but certainly by other engineers using LLMs.