Senior Android Engineer — 5+ years building Android at scale. SDE-2 & Android Platform Owner at Dice.tech, owning a platform serving 50,000+ MAU / 22,000+ DAU. I ship deep, well-architected Kotlin — and I extract the reusable parts into a Multiplatform toolkit family so the next app starts further ahead.

🌐 darkpandawarrior.github.io  ·  📄 Interactive CV  ·  💼 LinkedIn

What I've shipped · KMP toolkit family · Flagship apps · Side projects · Tech stack · Connect

At a glance — 50k+ MAU / 22k DAU platform owner · 80% crash reduction · GPS accuracy 50% → 95% · 92% Jetpack Compose migration of a 738k-LOC codebase · a 36-module MIT Kotlin Multiplatform toolkit + 17 shared Gradle conventions, running on Android · iOS · Wear OS · Desktop · Web.

val siddharth = AndroidEngineer(
    location = "Pune, India",
    yearsOfExperience = 5, // and counting
    role = "SDE-2 · Android Platform Owner @ Dice.tech",
    currentFocus = listOf("Compose Multiplatform", "Offline-first architecture", "Performance engineering", "System design"),
    believesIn = "extract the reusable core the moment a second app needs it",
)

• 📍 Location engineering — predictive dead reckoning + sensor fusion (accelerometer + GPS), taking tracking accuracy from 50% → 95% in production, with spike detection and a deterministic recompute that re-derives history when the math changes.
• 🎨 92% Jetpack Compose migration of a 738k+ LOC codebase, including a custom theme engine that cut UI-development friction by 60%.
• 🛡️ 80% crash reduction — dual Firebase Crashlytics + Sentry monitoring (programmatic init, ProGuard mapping, ANR detection), threading fixes and structured-concurrency cleanup.
• 🔐 Security hardening — SQLCipher + Android Keystore (AES-256), SSL pinning as dual build flavors, BiometricPrompt + CryptoObject, VAPT/banking-compliant.
• ✈️ Trip V2 travel platform — mileage submission linked to Itinerary V2, approval flows and full analytics across the mileage ecosystem.
• 🏢 20+ white-label client apps at Jugnoo / Jungleworks with an 80% reduction in delivery time via build automation — and a +85% Play Store rating with reviews up 80×.

Most of my open source is one system: a family of decoupled repos where the reusable libraries, the shared build logic, and the app shape each live in their own place — so a new app pulls them in and starts at "write the feature."

Kotlin Multiplatform · Android + iOS + Wear OS + watchOS + Desktop · 31-module clean architecture

• Five platforms from one codebase — native SwiftUI watchOS app, Glance + WidgetKit widgets, iOS Live Activity / Dynamic Island.
• 149 Roborazzi screenshot tests on the JVM (no emulator, no network), detekt / ktlint / Kover, CI.
• Dual gms / noGms distribution with a dependency-prefix guard (Play Store + F-Droid).
• Sensor-fusion location engine with predictive dead reckoning; on-device document AI (OCR field-fill, doc-type classification) and an on-device LLM assistant behind a shared LlmGateway.

Compose Multiplatform · Android + iOS + Desktop + Web (Wasm) · 13 modules · ISMCTS + LLM AI opponents

Satirical India corporate-political underworld — Kursi ke liye kuch bhi karega.

• Tiered AI — ISMCTS bots (1.5k–16k iterations by difficulty) → cloud-LLM upgrade (Anthropic / OpenAI / Gemini / on-device); each of 10 personas has a personality profile driving targeting and bluff choices.
• DARBAR social layer — bots form alliances, carry grudges, send Hinglish chat — without breaking the engine's byte-for-byte determinism.
• A deterministic, dependency-free :engine (a shared.purity tripwire keeps it that way), consuming the kmp-toolkit family via a git submodule.

Kotlin Multiplatform · Android + iOS · Ktor backend · 39-module architecture

An Integration Lab for the Android payments ecosystem — every gateway behind one abstraction, with a live look at what actually happens on each transaction.

• Gateway catalog behind one PaymentGateway abstraction — Razorpay, Cashfree, Stripe (+ Google Pay), Square, Omise, UPI intent, plus hosted-webview and mobile-money archetypes; one Gradle module per native-SDK provider, contributed via Koin's getAll<PaymentGateway>().
• Server is the source of truth — a companion Ktor server owns order creation, HMAC-SHA256 signature verification and webhook reconciliation; the client callback is only ever a hint.
• Process-death recovery + VAPT-grade security — every in-flight payment is journaled to Room before the SDK opens; Android Keystore AES-256-GCM at rest, device-integrity checks, certificate pinning.

Project	What it is
cv-siddharth	Interactive CV with an AI assistant — React 19, multi-provider LLM chat, 3D hero, printable résumé
HireSignal	Local-first AI career-intelligence dashboard — resume onboarding, reverse-ATS discovery, evidence-based fit scoring, tailored résumés, single-server multi-profile. Built on the open-source career-ops engine
kmp-app-template	The buildable CMP app seed above — fork it, customizer.sh --package …, and start shipping

Open-source contributions — 30+ merged PRs on the career-ops / HireSignal engine, including its multi-profile scoring/onboarding fusion, a production-grade README refresh, and the dashboard tabs.

Architecture: MVVM + Clean Architecture · MVI unidirectional state · Repository pattern · Multi-module · Gradle convention plugins Also: WorkManager · Foreground Services · Retrofit/OkHttp + Ktor · on-device AI (ML Kit GenAI / MediaPipe / Foundation Models) · Roborazzi · Firebase + Sentry · agentic dev workflows (MCP)