Khachatur Hambardzumyan
Verified Expert in Engineering
Android Developer
Helsinki, Finland
Toptal member since June 27, 2022
Khachatur has more than six years of professional experience as an Android developer. He has worked on various projects in big and small teams and has more than ten apps published on the Google Play Store. Khachatur has architected complex software systems, done UX design, DevOps, and much more. He enjoys coding as much as learning new technologies and algorithms.
Portfolio
Experience
- Git - 9 years
- Android - 7 years
- Java - 7 years
- Agile Software Development - 7 years
- Firebase - 6 years
- Android Architecture Components - 5 years
- Jenkins - 4 years
- Kotlin - 4 years
Work Experience
Lead Android Developer
Zadaa
- Worked on an Android version of the Zadaa's second-hand fashion platform.
- Migrated an existing app from custom DI to Hilt, which improved the app's performance.
- Implemented a new subscription feature to the Zadaa service.
Senior Android Developer
Digia
- Worked on various mobile projects, including Finnish hockey league apps, Iltalehti news Android app, Eckero Line, and more.
- Worked on new app development, refactored and upgraded existing apps, and maintained legacy systems.
- Managed automation and deployment for most of the projects using various CI/CD tools.
Android Developer
Zedge
- Worked on the Zedge Android app with around a million daily active users.
- Implemented a photo editing feature and image filters that involved image processing using OpenGL.
- Implemented the app's new authentication layer as a separate module.
Android Developer
Pipedrive
- Worked on an Android version of Pipedrive's sales customer relationship management (CRM).
- Developed features, fixed bugs, and maintained and deployed software.
- Implemented a new feed feature available for the mobile version only.
Software Engineer
Devolon | Formerly Neocard
- Worked on various projects, including web, mobile, and embedded systems.
- Worked on new feature development, bug fixes, and system maintenance.
- Communicated with customers directly and tested products on the spot.
IT Administrator
American University of Armenia
- Provided the highest level of technical support for a wide range of internal applications for students and staff.
- Maintained and managed a Windows-based server environment.
- Configured devices and computer networks, troubleshot technical problems, and implemented solutions.
- Provided support and administration for VoIP telephony.
Project History
Zadaa Android App
Zedge
http://www.zedge.netPipedrive Android App
https://www.pipedrive.com/Education
Master's Degree | Exchange Program in Software Engineering
Sapienza University of Rome - Rome, Italy
Master's Degree in Software Engineering
University of Tartu - Tartu, Estonia
Bachelor's Degree in Informatics and Applied Mathematics
Yerevan Sate University - Yerevan, Armenia
Skills
Libraries/APIs
Android Architecture Components, Sockets, Firebase Android SDK, RxJava, REST APIs, RxJava 2, Google Location API, OpenGL
Tools
Jenkins, Git, Android Studio, Gradle, GitHub, IntelliJ IDEA, CircleCI, Jira, Figma, Asana, Android Jetpack
Languages
Kotlin, Java, HTML, SQL, JavaScript, C++, Ruby, PHP, Python, GraphQL
Frameworks
Android SDK, Ruby on Rails (RoR), Spring Boot, Laravel, RenderScript
Paradigms
Agile Software Development, Functional Programming, Unit Testing, REST, Mobile Development, Model View ViewModel (MVVM), Agile
Platforms
Android, Firebase, Mobile, Heroku, Docker, Amazon Web Services (AWS), AWS Lambda
Storage
JSON, PostgreSQL, Relational Databases, Databases, MySQL, Redis, Amazon DynamoDB
Other
Software Engineering, Hilt, APIs, Mobile Apps, Architecture, JSON REST APIs, API Design, API Documentation, Back-end, User Permissions, User Interface (UI), Code Review, Source Code Review, Technical Hiring, Interviewing, Task Analysis, WebSockets, API Integration, Google Play Store, CI/CD Pipelines, Mobile App Development, System Architecture, Location Services, GPS, Mobile Networks, Cellular, WiFi, Push Notifications, SDKs, Google, eCommerce, Chromebook, Computer Science, Amplitude, Online Payments, Card Payments, Encryption, Sports, GitHub Actions, Back-end Development, Graph Theory, Discrete Mathematics, Data Mining, Data Modeling, Networking, System Administration, Data Compression, Jetpack Compose
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