Akhand Pratap Singh

Android App Developer · Lucknow, India

akhand787898@gmail.com N/A github.com/akhandpratapsinghdev linkedin.com/in/akhand-pratap-singh-79811b1a3

Summary

I'm an independent Android consultant with 3+ years of experience delivering high-performance production apps. I specialize in Kotlin, Jetpack Compose, and clean, scalable architecture. I care deeply about performance, pixel-perfect UI, and developer experience.

Experience

Lead Android Consultant · Independent Consultant

Jun 2025 — Present · Remote / International

Provide expert consultancy and custom native engineering for scale-ups and enterprise clients. Specializing in low-latency GenAI optimizations, modular architecture overhauls, and Kotlin Multiplatform integration.

Architected on-device AI integration (AuraAI) leveraging Gemini Nano, cutting RAM consumption by 40% and model latency to sub-85ms.
Engineered Kotlin Multiplatform (KMP) shared network/database modules (VibeStream), achieving 65% code sharing across Android & iOS.
Conducted complete security audits and integration of encrypted SQLCipher local vaults and biometric checkouts (NovaPay) for fintech clients.
Refactored multi-module build pipelines to Version Catalogs + local plugins, reducing clean Gradle compile times from 9m to 2m.

Kotlin · Compose · KMP · Gemini Nano · Hilt · SQLCipher · Stripe SDK

Senior Android Engineer · Freelance Contractor

Jun 2024 — Jun 2025 · Remote

Contracted with early-stage startups and product design studios to construct robust MVPs, media streaming clients, and secure finance tools.

Optimized ExoPlayer/Media3 buffering algorithms (StreamFlow) reducing network rebuffering rates to under 1.2%.
Co-designed biometric-gated tokenization vaults (WalletPro) achieving zero post-launch audit security findings.
Developed modular networking and token-refresh interceptor middleware integrated across all startup client systems.
Established Compose UI testing guidelines and test harness suites, expanding test coverage from 12% to 68%.

Kotlin · Compose · Media3 · ExoPlayer · Retrofit · Room · Hilt

Freelance Android Developer · Independent Developer

Jan 2023 — Jun 2024 · Lucknow, India

Built, optimized, and published custom Android products and client MVPs, managing the entire lifecycle from early layout design to Play Store distribution.

Successfully delivered and published 12 client MVP products to Google Play, with 3 client startups securing subsequent seed funding rounds.
Migrated legacy XML layouts to declarative Jetpack Compose, decreasing UI source code complexity and file counts by 40%.
Programmed sensor-batching activity trackers (FitTrack) optimizing battery consumption to under 1.2% per active tracking hour.
Managed store compliance checklists, closed-beta cycles, metadata configurations, and App Store Optimization (ASO) for international clients.

Java · Kotlin · XML · WorkManager · SensorManager · Firebase · SQLite

Selected Projects

Bass Booster Pro

2026 · Solo Developer

An advanced audio equalizer and bass booster app utilizing low-latency Android audio session routing and custom band equalization. Currently in closed testing on the Play Store, preparing for public release.

Closed Beta Status<15ms Audio Latency14-Day Test Stage

Govt Exam Typing Practice

2026 · Solo Developer

A specialized training application helping candidates prepare for government typing exams with physical keyboard integration and real-time WPM metrics. Shipped as a solo project directly to the Play Store.

10k+ Downloads99.2% WPM Accuracy4.4 Rating

Skills

Languages: Kotlin, Java, Dart, C++, SQL, Groovy (Gradle), Rust (JNI/NDK), Bash / Shell
UI & Compose: Jetpack Compose, Material 3 & Material You, Compose Navigation, Custom Layouts & Canvas, MotionLayout & Animations, Shaders (AGSL), Shared Element Transitions, XML / DataBinding
Architecture: MVVM, MVI / Redux (UDF), Clean Architecture, Layered Modularization, SOLID Principles, Domain-Driven Design (DDD), Offline-First Architecture
Async & Data: Coroutines & Flow, Room Database, Retrofit & OkHttp, Ktor Client, DataStore / Protocol Buffers, WorkManager, GraphQL / Apollo, Serialization (Kotlinx)
DI & Tooling: Hilt / Dagger 2, Anvil (DI), Gradle KTS, Version Catalogs, CI/CD (GitHub Actions, Bitrise), Firebase Suite, Fastlane, SonarQube / Linting
Performance: Macrobenchmark & Microbenchmark, Baseline Profiles, LeakCanary & Memory Dumps, Systrace / Perfetto, JankStats / Choreographer, App Startup / Warm-up optimization, R8 / ProGuard obfuscation, Compose Compiler Metrics
Testing: JUnit 4/5, MockK & Mockito, Compose UI Test & Espresso, Screenshot Testing (Paparazzi), Turbine (Flow Testing), Robolectric, UI Automator, TDD (Test-Driven Development)
Generative AI & Agents: Gemini Pro & OpenAI API, LangChain / LangChain4j, Retrieval-Augmented Generation (RAG), Vector Databases (Pinecone, Chroma), Tool-Calling & Function Binding, Semantic Search & Embeddings, Prompt Engineering & DSPy, LlamaIndex & Knowledge Graphs
On-Device AI & ML: Gemini Nano (AICore Android), MediaPipe SDK (Vision & Audio), TensorFlow Lite (TFLite), PyTorch Mobile / ExecuTorch, ONNX Runtime Mobile, ML Kit (OCR, Face & Object Detection), Speech-to-Text (Whisper.cpp), Hardware Acceleration (NNAPI, NPU)
Modern APIs: Credential Manager (Passkeys), Predictive Back Gestures, Forced Edge-to-Edge Layouts, Health Connect API, Privacy Sandbox, Jetpack Glance (App Widgets)
System & NDK: NDK (Native Development Kit), JNI (Java Native Interface), IPC (AIDL, Binder), AOSP / Custom ROMs, Android Keystore / Security, Process & Thread Lifecycle
Hardware & IoT: BLE (Bluetooth Low Energy), Camera2 / CameraX, Biometrics API, NFC (Near Field Comm), Geofencing & Location APIs, USB Host / Accessory API
Cross-Platform: Kotlin Multiplatform (KMP), Compose Multiplatform, Decompose & Voyager (KMP), SQLDelight & Ktor (KMP), Flutter & Dart, React Native (basic)
Tools: Android Studio, Git & GitHub, Figma, Postman, Charles Proxy & Wireshark, Linux & Neovim