@Soda should have +2 on mediawiki/*. Sohom already has +2 on several Wikimedia-deployed extensions [1] [2], and the reviews I see on those repositories and elsewhere are thoughtful and ask good questions. They are also doing great work on various external tools and other parts of our technical ecosystem, and I trust that this will help them make MediaWiki and the Wikimedia wikis even better.
[1]: T264458: Grant Sohom Datta +2 right on ProofreadPage
[2]: T351972: Request membership in PageTriage group (+2) for Sohom Datta