Senior Mobile Engineer — Android · Kotlin Multiplatform · Flutter · React
I ship infrastructure people don't notice until it breaks · 6+ years · Open-source on Maven Central
The work lives here. Most of what I'm proud of is one click away.
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Annotation-driven KMP caching for Retrofit, OkHttp, and Ktor. Solves POST-query caching (GraphQL, search) and mutation-driven invalidation that stock OkHttp can't.
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GitHub Action wrapping Firebase App Distribution for drop-in CI delivery. Replaces the hand-rolled distribution step in every Android CI I've worked on.
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Privacy-first PWA for anonymizing WhatsApp chat exports. Auto-detects participants, tiered leetspeak-aware NSFW filter, runs 100% client-side with Web Worker off-thread parsing.
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Smart chat-alerts for Android. System NotificationListenerService monitors user-defined keywords across any messaging app. Whole-word matching, fully offline. CC BY 4.0.
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Mobile native (Kotlin / Jetpack Compose) is the home base. Day-to-day I also ship in TypeScript and Python — open-source GitHub Actions, low-latency Node / AWS Lambda services, React / Next.js dashboards, data tooling. Kotlin Multiplatform, Compose Multiplatform, Flutter, and React Native come along when the job needs them.
Currently shipping at WebMD / Medscape (via Tight Line) — migrating legacy WebViews into native Compose on a strict MVI architecture. Maintaining Retrostash on Maven Central. Building Knock (KMP calendar alarm) and Nag (KMP persistent reminder) on the side.
val currentFocus = mapOf(
"Kotlin Multiplatform" to "Shared business logic + native-feel UI across Android, iOS, JVM, wasm",
"Compose Multiplatform" to "One Compose codebase, multiple targets, no compromises",
"Low-latency Lambdas" to "Sub-millisecond Node.js on AWS — spin-locks, TCP_NODELAY, HTTP/2 multiplex",
"On-device LLMs" to "Gemma 4 E2B + LiteRT-LM for Android RAG pipelines",
"Open-source infra" to "Annotation-driven libraries that solve problems people kept hand-rolling"
)I'm open to discussing:
- 💼 Senior mobile engineering roles (USD / EUR / GBP / CAD remote)
- 🤝 Open-source collaboration on KMP / Compose libraries
- 🧱 Mobile architecture — KMP rollouts, MVI, build infrastructure
- 🎯 Healthcare, fintech, dev-tools, logistics
Reach out:
- 📧 Email: jeffery@logickoder.dev
- 💼 LinkedIn: linkedin.com/in/logickoder
- 🌐 Portfolio: logickoder.dev
- ✍️ Writing: logickoder.substack.com
- 🐦 Twitter / X: @logickoder
"The name logickoder comes from my love of solving logical problems through code."
⭐️ From logickoder · Built with care in Lagos, Nigeria 🇳🇬