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Konrad Tercjak

@konradtercjak

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Senior Android Developer with extensive mobile application expertise.

Zimbabwe

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What I'm looking for

I am seeking a role that fosters innovation and collaboration, where I can leverage my skills in mobile development and contribute to impactful projects.

I am a Senior Android Developer with extensive experience in mobile application design and development. My expertise lies in programming with Java and Kotlin, and I have a strong background in developing native applications for both Android and iOS platforms. I am proficient in using libraries and frameworks such as Jetpack, Material Design, and Jetpack Compose, which allows me to create scalable and efficient applications. My understanding of design and architecture patterns, including MVVM and Clean Architecture, enables me to optimize application performance effectively.

Throughout my career, I have successfully integrated with APIs and external services, and I have a solid grasp of UX/UI principles, allowing me to create intuitive user interfaces. I have worked on applications for the public sector and have experience in international teams, collaborating with demanding technical and business clients. My portfolio includes applications with over 100 thousand users, showcasing my ability to deliver high-quality mobile solutions that stand out in the competitive landscape.

Experience

Work history, roles, and key accomplishments

Current

Android Developer

Current

Freelancer

Aug 2023 - Present (1 year 9 months)

Developed high-performance, scalable retail applications, implementing features such as product catalogs and secure checkout. Utilized Kotlin Multiplatform Mobile (KMM) to create a shared codebase for Android and iOS, accelerating development time.

Kotlin Java Android SDK Jetpack Compose MVVM Coroutines Flow Retrofit

Android Developer

DGT - MCPTT

Aug 2023 - Nov 2023 (3 months)

Created new functionalities and fixed bugs for a Push To Talk app for critical government applications. Led the Map Module XML-to-Jetpack Compose migration, architecting UI modernization and optimizing performance.

Mapbox GeoJSON GIS Spatial Analysis Kotlin Java Android SDK Jetpack Compose

Android Developer

Sirroco Mobile - Toyota

Feb 2023 - Aug 2023 (6 months)

Provided technical support to internal teams and external clients, promptly resolving queries and issues. Collaborated closely with cross-functional teams to ensure smooth integration of new features and bug fixes.

Java Kotlin RxJava Coroutines Flow Android Architecture Components

Android Developer

Ailleron

Feb 2022 - Jan 2023 (11 months)

Developed and maintained critical features for the Livebank mobile app, including chat and video chat functionalities. Implemented real-time communication protocols and optimized app performance, delivering a library with 99.9% uptime supporting over 1M users.

Java Kotlin RxJava Coroutines Flow Android Architecture Components Figma WebRTC

Android Developer

NASK

Apr 2020 - Feb 2022 (1 year 10 months)

Developed and maintained critical government mobile applications (mObywatel, mWerifikator) used by millions of Polish citizens. Implemented robust security measures, optimized app performance, and architected UI modernization for login and biometric features.

Kotlin Java Coroutines Android Architecture Components Flow Retrofit Git Figma

Android Developer

NOVELPAY

Feb 2019 - Feb 2020 (1 year)

Developed and debugged Android applications and libraries for payment terminals, focusing on fintech solutions. Prioritized security by adhering to industry best practices, including data encryption and secure coding standards.

Java Kotlin SQLite RxJava Android Architecture Components Retrofit Git

Android Developer

Future Mind

Jul 2014 - Sep 2014 (2 months)

Created the Android application "Słownik Synonimów" from scratch, which is available in the Play Store. Performed development and bug fixing for other applications.

Android Development Java JSON Mobile Application Design

Education

Degrees, certifications, and relevant coursework

Konrad Tercjak

Unknown, Software Development

This section does not contain specific educational history. It primarily details professional experience, technical skills, and project involvement as an Android Developer.