Ivan Croitor

Experienced Android developer with a strong background in working with various Android components, frameworks, and APIs. Committed to delivering high-quality solutions and adhering to industry best practices to maximize business value. Began career by developing Android games, gaining expertise in Socket communication, REST APIs, XML and JSON protocols, Canvas, and OpenGL drawing. Continuously enhances technical skills by mastering Design Patterns, Architecture (MVC, MVP, MVVM, MVI), Clean Code principles, and TDD practices. Demonstrates a passion for knowledge sharing and process improvement as a mentor in the Endava Internship program. Currently oversees the Internship program at Endava, collaborating with individuals from Development, QA, and Application Support teams. Successfully transitioned from a backup role to Team Lead, managing a team of 10 people and serving as a Direct Manager for a group of 30 Developers across different streams.

• Senior Developer and Lead, Audio-Video communication device Android OS, World-wide known provider of Audio-Video communication devices, 05/01/21, Ongoing, Participate in defining the HL design for new solutions., Modify existing solutions to extend their functionality., Direct communication with the client, and the client's team., Discuss with the client the business requirements., Ensure team effectiveness is at the desired level., Review code changes., JAVA, Kotlin, Angular, C, C++, Bash, Mockk and JUnit for unit tests, Coroutines, RxJava 2, AIDL, Retrofit, Compose, Android Studio, Visual Studio Code
• Development/Design Lead, Credit Card Network Payment SDK, Worldwide Credit Card Network and Payment Solutions, 11/01/19, 05/01/21, Participate in the HL architecture design of the solution., Elaborate detailed diagrams of the components described in HL architecture design., Supervision of the entire development process., Setting up the PR review rules, CI/CD pipeline security, and quality gates., Discuss with the client the business requirements., Ensure team effectiveness is at the desired level., Review code changes., Ensure strict security and performance KPIs are achieved., Kotlin, Mockk and JUnit for unit tests, Coroutines for asynchronous/non-blocking executions., Android Studio
• Development/Design Lead, Internal applications, Endava, 01/01/19, 11/01/19, Take key decisions and implement application architecture., Control the entire development process., Discuss with the client the requirements for new features., Keep under control the decisions each of the stream devs takes., Ensure team effectiveness is at the desired level., Java, Kotlin, Retrofit as wrapper for HTTP client, OkHttp as HTTP client, Realm as storage solution, Dagger 2 for dependency Injection, Mockito and JUnit for unit tests, RxJava for reactive programming, Coroutines, Koin, Android Studio
• Development/Design Lead, Airline services application, An airline company from South America, 07/01/17, 01/01/19, Making key decisions and implementing application architecture., Discuss with the client and come up with proper solutions that will satisfy both the client and customers., Prepare Jenkins scripts to automate build distribution., Control the entire development process., Discuss with the client the requirements for new features., Keep under control the decisions each of the stream dev takes., Ensure team effectiveness is at the desired level., Java, Retrofit as a wrapper for HTTP client, OkHttp as HTTP client, Realm as a storage solution, Dagger 2 for dependency Injection, Mockito and JUnit for unit tests, RxJava for reactive programming, Android Studio
• Senior Android Developer, Airline services application, An airline company from South America, 01/01/17, 07/01/17, Making key decisions and implementing application architecture., Discuss with the client and come up with proper solutions that will satisfy both the client and customers., Prepare Jenkins scripts to automate build distribution., Create UI layer for the mobile phone application according to provided design and following Android Design Guidelines., Create a Business Layer for interaction with the backend., Implement data storage for non-sensitive data on mobile phones., Java, Retrofit as a wrapper for HTTP client, OkHttp as HTTP client, Realm as a storage solution, Dagger 2 for dependency Injection, Mockito and JUnit for unit tests, RxJava for reactive programming, Android Studio
• Android Team/Design lead, Application used to search and access Airport Lounges, A company that offers business-to-business and business-to-client loyalty, rewards, and benefits to insurance solutions, 07/01/16, 01/01/17, Take key decisions and implement application architecture., Discuss with the client and come up with proper solutions that will satisfy both the client and customers., Prepare Jenkins scripts to automate build distribution., Create UI layer for the mobile phone application according to the provided design and following Android Design Guidelines., Create a Business Layer for interaction with the backend., Implement data storage for non-sensitive data on mobile devices., Java, Retrofit as a wrapper for HTTP client, OkHttp as HTTP client, Realm as a storage solution, Dagger 2 for dependency Injection, Mockito and Spek for unit tests, RxJava for reactive programming, Android Studio
• Android Team/Design lead, Application used to manage, and view all the transactions from a bank account, A North European business that offers banking and payment solutions for their customers, 09/01/15, 07/01/16, Take key decisions and implement application architecture., Discuss with the client and come up with proper solutions that will satisfy both the client and customers., Prepare Jenkins scripts to automate build distribution., Create UI layer for the mobile phone application according to the provided design and following Android Design Guidelines., Create a Business Layer for interaction with the backend., Implement data storage for non-sensitive data on mobile phones., Java, Retrofit as a wrapper for HTTP client, OkHttp as HTTP client, SQLite from Zetetic for encrypted data storage, RoboGuice for dependency Injection, Robolectric, Mockito, JUnit for unit tests, Android Studio
• Android Developer, Application used to pay utility bills, A British business that offers payment solutions for everyone from consumers and financial services companies to retailers, utilities, media, e-commerce, gaming, and government clients, 06/01/15, 09/01/15, Create UI layer for the mobile phone application according to provided design and following Android Design Guidelines., Create a Business Layer for interaction with the backend., Implement data storage for non-sensitive data on mobile phones., Java, Retrofit as a wrapper for HTTP client, OkHttp as an HTTP client, Realm for data storage, RoboGuice for dependency Injection, Robolectric, Mockito, JUnit for unit tests, Android Studio
• Android Developer, Mobile Application for Post Company, 04/01/15, 06/01/15, Change build system from Maven to Gradle., Move project from Eclipse IDE format to Android Studio format., Implement some change requests., Fixed some bugs., Adapt rest calls to use Retrofit., Java, Retrofit as a wrapper for HTTP client, Android Studio
• Android Developer, Endava Mobile Application, Endava internal project, 12/01/14, 04/01/15, Create UI for tablets with animations., Create architecture so we can reuse the same functionality on tablets and phones., All dynamic data views were replaced with RecyclerView., Java, Volley as HTTP client., Android Studio
• Android Developer, Hyntly Mobile Application, Endava internal project, 11/01/14, 12/01/14, Adapt application UI flow to native Android UI Flow., Refactor all Business Layer., Refactor rest interaction and data synchronization., Add new features to Android views., Java, Volley as HTTP client., Android Studio
• Android Developer, AGILITY Mobile Application, Endava internal project, 10/01/14, 11/01/14, Write some custom JSON deserializers., Add new features to Android views., Implement Push Notification reminder., Java, Dependency Injection using Roboguice, Unit Testing using Robolectric, Android Studio
• Software Developer, Social trade platform app, CTB-Soft S.R.L, 06/01/14, 10/01/14, Develop entire client application., Provide solutions for better interaction between application and server API., Load images asynchronously and minimize data transfer., Layout adaptation for tablets and phones., Implement Push Notification reminder., Java, Android SDK, DiskLRU cache for image caching, STOMP messaging, Junit for some parts of code, Android OS >= 4.0
• Software Developer, Photolamus project, Photolamus LLC, 08/01/13, 06/01/14, Develop the entire client application., Develop a helping library for Asynchronous image downloading and caching., Develop a helping library for interaction with Play Market and Amazon market IAB APIs., Develop a helping library for crop feature., Layout adaptation for both phones and tablets., Java, DiskLRU cache for image caching, Junit for some parts of code, Android OS >= 2.3
• Software Developer, Classical Music for Mommies, CTB-Soft S.R.L, 06/01/13, 08/01/13, Develop the entire application., Develop a manager that will download a big file and will resume it if the download is not finished, if the same file is going to be downloaded., Java, SQLLite, Android OS >= 2.2
• Software Developer, RPS Online, Reznic Sofware S.R.L., 09/01/12, 05/01/13, Develop game UI and animation engine., Minimise lags on slow devices., Develop entire module of network connectivity., Develop a module that changed skins of characters., C#, OpenGL with Unity 3d, Android OS >= 2.3
• Software Developer, Greedy Burplings and Greedy Burplings Expansion, Reznic Sofware S.R.L., 01/01/12, 09/01/12, Develop game UI and animation engine., Minimise lags on slow devices., Java, Android SDK, OpenGL with libgdx, Android OS >= 2.1
• Software Developer, Yahtzy Online, Reznic Software S.R.L, 06/01/11, 01/01/12, Develop the entire game client., Minimise lags on slow devices., Java, Android SDK, Canvas drawing, Junit for some parts of the code, Android OS >= 2.2