Now
Leading KMP/CMP at GeoKrishi Farm Aalekh — Gradle plugin on the Gradle Plugin Portal Nepali Date Picker — KMP · Android · iOS · Desktop · Web KMP-Logger — lightweight structured logging Publishing on Maven Central · Gradle Plugin Portal · PyPI Writing on Medium & dev.to Coding by day, crafting verses by night
Work Case Study Open Source Writing About Contact

KMP / CMP Lead Developer · Kathmandu, Nepal

ShivaThapa

I am Kotlin Multiplatform developer — Android and iOS shipped from one codebase — and publish the reusable parts: libraries on Maven Central, a Gradle plugin, and long-form engineering writing.

The flagship case study: GeoKrishi Farm, a production app rebuilt as Compose Multiplatform and shipped to existing users on the App Store and Play Store.

See the work GitHub
93%
shared code — production app, both stores
4
registries — Maven Central · Gradle Plugin Portal · PyPI · Play Store
2+ years
production KMP — Android + iOS

Now — leading KMP/CMP at GeoKrishi

Work

One employer,
many products.

Pathway Technologies · Kathmandu · May 2024 – Present

Feb 2026 – Present

TripTurbo — Android/KMP Developer

  • Built the international flight-booking vertical end-to-end — search, dynamic fare repricing, PNR creation with multipart document upload, passenger forms with validation, promo codes, and payment integration — across the shared Kotlin data layer and Compose UI (~80 files).
  • Unified Android and iOS analytics onto a shared KMP tracking layer (GA4 + Meta App Events), writing both the Kotlin and Swift halves.
  • Oversees feature delivery and mentors developers while progressively rolling Compose Multiplatform out to the iOS codebase, replacing the remaining SwiftUI surface.
  • Migrated the networking layer to a typed sealed response hierarchy with per-status error mapping — an 87-file refactor that removed ~2,500 net lines.
  • Diagnosed R8 obfuscation breaking encrypted-storage keys and shipped a legacy-key migration so existing users' sessions survived the upgrade.
  • Cut three production releases; hardened payment flows, including deduping payment-gateway callbacks to prevent duplicate verification calls.
Play Store App Store

Apr 2025 – Present

GeoKrishi Global — KMP/CMP Lead Developer

  • Leads mobile — feature roadmap and architecture — as ~97% sole author from empty repo: 596 of 615 commits, ~90% of the code shared across Android and iOS.
  • Wrote the shared infrastructure solo: Ktor networking with typed errors and token refresh, a WebSocket real-time layer, Koin DI, type-safe navigation, encrypted key-value storage, and a single expect/actual boundary for all platform code.
  • Built real-time crop-health chat over WebSockets with cross-platform audio recording and playback and streamed file uploads — including fixing an upload OOM.
  • Localized for multi-country use: three-language UI with per-app language preferences, language propagated to HTTP and WebSocket headers, country-code login, currency-aware pricing.

May 2024 – Present

Geokrishi Farm — Android Developer & KMP Lead

  • Owns Play Store and App Store releases — including swapping the entire codebase for the Compose Multiplatform rebuild under the same listings, one version to the next.
  • Module graph has grown to 52+ since the rebuild (46 at ship), still with compile-time-checked module boundaries.
  • Built the shared Material 3 component kit, including a Compose adaptation of iOS's Liquid Glass so native surfaces still feel platform-correct.
  • Crashlytics ownership: crash monitoring, mapping and native-symbol uploads, release health.
  • Startup performance: baseline and startup profiles benchmarked with Macrobenchmark on the low-end hardware farmers actually carry — ~18% faster cold start.
  • Drove AdMob integration and monetization experiments to grow in-app ad revenue.
  • Team liaison.

The case study below is this role's centerpiece.

Play Store App Store

May 2024 – Present

Internal & field products

  • Built multiple internal apps greenfield — first commit to internal distribution.
  • Offline-first field data-collection apps for teams working beyond reliable connectivity — local persistence, deferred sync, conflict-tolerant uploads.
  • Internally distributed and maintained alongside the store-published products.

Case study · GeoKrishi Farm · May 2024 – Present

Same app, same listing,
new architecture.

The flagship case study. GeoKrishi Farm is a farming app for Nepali farmers, in production on the Play Store and the App Store. The old codebase was KMP in name only — one Gradle module, a token slice of Kotlin compiling for iOS, and the entire iOS UI duplicated in SwiftUI. I rebuilt it as Compose Multiplatform and shipped it to existing users as a normal store update — same listing, next versionCode.

Codebase before and after the rebuild
Metric Old New
Gradle modules 1 46
Kotlin compiled for iOS 848 lines (of ~215,000) 119,742 of 128,801 in commonMain — 93%, UI included
Swift 64,690 lines (fully duplicated UI) 993 lines
Codebases Two (Kotlin + SwiftUI) One — live on App Store + Play Store, same listings

Shipping in place

  • Zero-friction credential migration for existing users across an R8-obfuscation boundary — no forced re-login on update.
  • iOS Keychain hygiene for fresh installs — Keychain items outlive the app, so reinstalls must not inherit stale secrets.
  • Backward compatibility for years of accumulated deep-link and push-payload formats.

Measured, not estimated

Cold start on a Redmi Note 11 (Android 13), 10 iterations each: 1,359 ms median without a baseline profile, 1,118 ms with one — ~18% faster. Baseline and startup profiles are generated on real low-end hardware, because that is what the users have.

Under the hood

Biometric vaults, matched semantics

AndroidKeyStore AES/GCM cipher bound to the prompt ↔ iOS Keychain kSecAccessControlBiometryCurrentSet; both invalidate on biometry change.

Firebase via CInterop

A 16-line hand-written Objective-C header; the Kotlin klib carries no Firebase dependency.

Swift implements Kotlin

A Kotlin interface implemented in Swift bridges Google Maps/Places.

Payment SDKs, one Kotlin interface

Same pattern as Maps — each platform's native payment SDK sits behind a shared Kotlin interface, so checkout call sites don't branch on platform.

One push/deep-link resolver

FCM push and deep links unified through a single shared Kotlin resolver on both OSes.

37 expect/actual seams

The full platform boundary, counted.

Play Store App Store

Open Source

If I solve a problem twice,
it becomes a library.

Every claim below links to a registry · Maven Central · Gradle Plugin Portal · PyPI · Play Store · klibs.io

The Nepali Niche

Nepali Date Picker

Material3 date picker for Android, iOS, Desktop, and Web. On Maven Central under io.github.shivathapaa.

Maven Central GitHub klibs.io

Nepali Calendar Utils

Python

The same niche, in Python.

PyPI GitHub

Earlier: Music Tag Editor · Projects Demo Lab → github.com/shivathapaa

Plus 5+ internal libraries maintained at work, alongside the public ones above

“When fingers dance on keys, I code with all my might
But when a pen is in my hand, I craft verses through the night.”

Shiva Thapa · Developer & Poet · Kathmandu

Writing

Notes from
production.

All articles → medium.com/@shivathapaa · dev.to/shivathapaa

About

The developer
behind the code

KMP/CMP lead in Kathmandu. I build Android and iOS from one Kotlin codebase, Compose UI included, and lead mobile at Pathway Technologies across its products.

I publish libraries to Maven Central, the Gradle Plugin Portal, and PyPI; write on Medium and dev.to; and mentor the team I lead.

The iOS side is Swift where the platform requires it — the @objc Firebase bridge, the Maps integration, the app shell.

Languages

KotlinSwiftPython

UI & Frameworks

Jetpack ComposeCompose MultiplatformSwiftUIKtorKoinFirebase

Tooling & Publishing

Gradle convention pluginsMaven Central publishing

Contact

Building for both platforms
from one codebase?

buildwith.shivathapaa@gmail.com

Open to KMP/CMP consulting, lead roles, and open-source collaboration. I read everything sent here.

GitHub github.com/shivathapaa LinkedIn linkedin.com/in/shivathapaa Medium medium.com/@shivathapaa dev.to dev.to/shivathapaa