I don’t think it’s quite right that scaling labs universally need more in the way of “Iterators” than other archetypes. For instance, from Anthropic’s Interpretability April update (https://transformer-circuits.pub/2024/april-update/index.html), we currently believe management is the most important role our team is hiring for right now:
Managers—We see this as the most important role that we’re hiring for right now.
Our growth is likely to be bottlenecked on management capacity, and finding the right fit for the team could make a huge difference to our long-term success.
Filling this role has been challenging because we’re looking for someone with experience in a research or engineering environment, who is excited about and experienced with people and project management, and who is enthusiastic about our research agenda and mission.
I’d also add that “Research Engineer” is an extremely important profile to doing a lot of scaling lab work and feels more important to me than this post suggests (at least when I think of how much Anthropic Interpretability is interested in these roles). E.g. our recent paper Scaling Monosemanticity would have been completely, 100% impossible without research engineers tackling seriously hard engineering challenges. [See the Author Contributions/”Infrastructure, Tooling, and Core Algorithmic Work” section for a flavor of the sorts of work involved.]