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$25 USD / hour
Flag of PAKISTAN
karachi, pakistan
$25 USD / hour
It's currently 1:11 PM here
Joined August 26, 2013
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Talha H.

@talhazia93

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$25 USD / hour
Flag of PAKISTAN
karachi, pakistan
$25 USD / hour
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Mobile Apps Developer | Android | Flutter | Kotlin

I am Talha Hasan Zia, an Android Developer. I have developed and published over 10+ apps with 10,000+ downloads in total. I have worked on apps with MVVM, MVI, MVP and VIPER architectures using Java and Kotlin with Dagger2, Hilt and Koin for dependency injection that drives a testable coding approach. I have also run a few experiments with RIBs. I am a keen supporter of clean architecture. I have a good understanding of Rx patterns and Coroutines for asynchronous operations. I have written comprehensive tests using JUnit4 and Mockito. Most recently, my work includes working extensively with Jetpack compose and Android library module based feature development. I also got a chance to work on writing APIs using Spring Boot and some frontend work using Reactjs. I am involved in process and automation, and working with CI CD tools like Bitrise, Github Actions and Fastlane. I recently automated the build distribution process to QA with PR merge, so when the PR is merged, builds are created and distributed to QAs on Firebase automatically. The PRs have also checks for project compilation, SonarQube health, Unit Tests, Lint, and UI tests integrated with Firebase Test Lab. I also worked on automating git tags, which creates a release with apk on Github.. I have also created code file templates to integrate with IntelliJ based Android Studio, where we can create files in a package with all of its layers boiler plate code. (Fragment, Viewmodel, UseCase, Service, Repo, API and test classes) in just a single click. I have good knowledge in design patterns and structuring application's architecture for scalable and maintainable codebase. I work in developing separate reusable modules and serves them as SDK which saves us time in writing the same solution again. I love to solve problems on paper using these principles before diving into the code. I have used Figma, XD and Invision to translate design into near-pixel perfect UI on Android. I have developed SDKs using entirely Kotlin stack (Moshi, Koin, Coroutines) and so far I am really satisfied with code reliability and testability to deliver bug free software SDKs using Kotlin. I have also worked with Android Architecture Components using MVVM, Hilt, LiveData and Flow APIs, since I believe new tools that Google is bringing to android is a great move towards standardized Android Apps development which should be happening years ago. In terms of process automation, I have been working with CI CD and code analysis tools like GitHub actions, Bitrise , Sonarqube etc.

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Experience

Senior Software Engineer

Bazaar Technologies
Sep 2022 - Jan 2024 (1 year, 4 months)
Worked on Bazaar B2B marketplace apps including customer, rider and agent (salesmen) facing apps using modern technologies like jetpack compose, hilt, and Kotlin. Delivered several features including Login/Signup revamp, geofenced deliveries, order flow revamp, KYC and socket based chat. The whole project was SDK module based. Also worked on writing APIs using Spring Boot and developed dashboard UI using Reactjs.

Senior Software Engineer

Airlift Technologies
Sep 2020 - Jul 2022 (1 year, 10 months)
Brought crash free users rate from 63% to 95%+ after revamping. Working on rider and other operations apps for groceries solution. Assigned with the task of not just feature development but also refactoring code, bringing MVVM-clean to the project. Unit tests and UI tests. We use kotlin, coroutines, MVVM, Dagger, Cucumber, and architecture components stack. Github Actions for CI/CD.

Software Engineer (Android)

VentureDive Pvt Ltd
Oct 2017 - Aug 2020 (2 years, 10 months)
- Working with CI\CD in Android Apps, Kotlin/Moshi/Coroutines/Koin on VIPER/MVVM stack, with unit tests and Cucumber tests - Worked on a well-known ride hailing app as outsourced resource for 6 months in Dubai. - Worked on food-delivery app that covered both B2C and B2B areas, included whole delivery process from order tracking to inventory management. - Worked on a comprehensive air-travel service app that included services from transport and catering to multi-itineraries management.

Education

BS Computer Science

Karachi University, Pakistan 2012 - 2016
(4 years)

Publications

Android - Unit Testing for Dummies

Personal Blog
A detailed discussion on unit testing for beginners. https://talhahasanzia.github.io/posts/unit-testing/

Java - Annotation Crash Course

Youtube
Crash course on run-time and compile (build) time annotation processing with Java Poet code generation examples https://www.youtube.com/watch?v=rRr6gEAVAZk&list=PLYNsDpX7zoFEAml1Mpb1uXNSyPn_exgYf&pp=gAQBiAQB

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