Best earlier-stage (Series B or earlier) startups for mobile engineers?

Mobile engineer here. Want to increase TC at a quickly-growing spot where mobile engineering has a big impact. TC: At least $350K/year, with $180k/year in cash for a Senior SWE role Size: Probably Series B or earlier, with a fast-growing trajectory. This rules out - Almost IPO places like Instacart, Reddit, Stripe, Discord, Chime - Post-IPO folks (Airbnb, Robinhood, Lyft, Uber, Lyft, Doordash, Snap, Meta, Google, etc) Tech Stack: Not React Native. Any recommendations? #software #mobile #android #ios #engineering #swe YOE: 8 TC: 300k