Open to opportunities

Shah samir

@shahsamir

Message

I build reliable Android and Kotlin applications, from high-traffic booking journeys to offline-first merchant tools.

Germany

Message

What I'm looking for

I'm looking to build reliable Android and Kotlin backend products where I can own meaningful user journeys, improve architecture and quality, and grow through collaborative work across product, design, backend, and QA.

I've delivered Android booking experiences for 1M+ travelers at ShareTrip and built merchant-facing capabilities for 3K+ merchants at Scrap Bays.

At Scrap Bays, I raised crash-free users from 89% to 96%, built a Merchant-to-Merchant chat experience with Kotlin, Coroutines, Flow, MVI, and Clean Architecture, and created offline-first transaction and exchange flows with SQLDelight.

At Therap, I built an IoT onboarding and monitoring flow for smart switches, then modernized the codebase with Hilt, unit tests, Fastlane, and GitHub Actions.

I'm expanding into backend development by building RESTful Kotlin and Spring Boot services, with a focus on API design, persistence, testing, and maintainable architecture. I also built a Kotlin Multiplatform app that shares data, domain, and ViewModel layers across Android and iOS.

Experience

Work history, roles, and key accomplishments

Current

Independent Software Engineer

Current

Self Employed

Aug 2025 - Present (1 year 1 month)

Expanding software engineering expertise into backend development by building and practicing RESTful services with Kotlin and Spring Boot, focusing on API design, data persistence, testing, and maintainable application architecture.

Kotlin Spring Boot RESTful Services API Design Persistence Testing Application Architecture