I help Android engineers get to the next thing - the offer, the promotion, or the app they keep not shipping. Nine years in: Tech Lead at Paytm on a 300M+ user payments app, now senior at LeadSquared. I've sat on the interviewer's side of Android hiring and mentored 6+ engineers through the jump to senior. I've also shipped two apps to the Play Store on my own, so I know both the big-org version of this job and the solo one. I can help you with: • Android interviews - Kotlin, Compose, architecture, and the mobile system design round most people walk into cold • Getting to Senior / Staff - what actually counts as impact when review season comes • Architecture reviews - Compose, MVI, modularisation, migrating without stalling the roadmap • Performance - cold start, APK size, crash/ANR, memory • Shipping your own app - Play Store release, signing, policy traps • On-device AI - I put a function-calling LLM into a production CRM app this year