Krystian Wsul
Verified Expert in Engineering
Mobile App Development Developer
Krystian是一位专注于Android开发的全能程序员. He offers comprehensive Android development services. Krystian可以将项目从最初的想法带到Google Play Store,并处理长期维护和未来发展.
Portfolio
Experience
Availability
Preferred Environment
IntelliJ IDEA, Android Studio
The most amazing...
...我所开发的是一个社交视频应用,它正在成长为市场的领导者之一.
Work Experience
Android Engineer
Mobile Motion
- 在下载量超过1亿的社交视频应用中引入了新功能.
- 开发了先进的视频编辑功能,如过滤器和视频剪辑合成.
- Helped transition Java MVP architecture to Kotlin MVI.
- Participated in a well-organized and mature Scrum process.
Freelance Full-stack Android Developer
Freelance Work
- 担任一款白色标签汽车共享应用的首席Android开发者,该应用在欧洲和亚洲拥有数十万的安装量.
- 作为Android平台的开发者,为本地企业提供快速送货上门服务.
- 为一个应用程序开发MVP,允许用户查看营销内容以收集积分, 然后将其用于合作企业的应用程序中的无广告使用.
- 为网站分享社交和基于视频的智能手机评论开发了一个Android应用程序.
- Developed an app for users inexperienced with social media, 这便于朋友和家人在生日时交换祝福, anniversaries, and other life events.
- 为一家安全承包商开发了一款Android应用程序,简化了为员工撰写协作安全评估报告的流程, annotating them with editable images, videos, and maps; as well as geospatial information.
- 构建MVP Android应用程序和基于web的管理工具的平台,促进购买, selling, and exchanging clothing items.
- 设计了一款安卓应用,可以让用户协调晚宴的菜单.
Full-stack Developer
MaxiPizza
- 构建了一个Android应用程序,用于放置客户订单和监控交付进度.
- 开发了一个Android应用程序,帮助送货司机处理订单内容和导航.
- Redesigned a company's website and online ordering system.
- Developed desktop software to generate and print customer invoices.
- Built a type of desktop software to facilitate employee management.
- 自动同步订单与第三方订单和交付服务.
- Redesigned intranet web tools for restaurant management.
- Automated email and text message promotional campaigns.
Network Technician
University of Wisconsin-La Crosse
- 自动化部署思科路由器和计算机网络配置.
- Installed and maintained fiber-optic and copper cabling.
- Performed remote and on-site diagnostics of networked devices.
- Developed and maintained the networking department's web page.
Release Engineer
SAP BusinessObjects
- 构建一个集中式构建服务器,以取代现场七个团队使用的单独构建服务器.
- 设计了一个内部网网页来显示所有团队的构建结果.
- 自动每晚构建,并向团队经理发送构建报告.
Experience
Dubsmash
CarTrek
As the lead Android developer, 我实现了支持多个地图提供者和支付处理等新功能, rebranded the app for individual client companies, and performed general maintenance tasks.
Shadda
As the developer for the Android app, I worked with Google Maps, Mapbox navigation, communicating with the Firebase backend, and implemented a visual redesign of the app.
Airon
FireWatch Solutions (Internal-use App)
http://www.firewatchsolutions.com/TimeGuru
http://avibortnick.com/time-guru/多年来,我实施了新功能,重新设计了应用程序,并进行了一般维护.
MaxiPizza
http://www.maxipizza.pl/除此之外,我还建立了他们的后端,网站和匹配的Android应用程序. The whole set spans numerous platforms, including Windows and Unix servers, 各种数据库和通信协议以及基于web和android的客户端应用程序.
Skills
Languages
Kotlin, Java, SQL, c#, HTML, CSS, Swift, GraphQL, PHP, JavaScript, Ruby
Libraries/APIs
RxJava 2, Google Location API, Google API, Google Maps SDK, Google Drive API, Node.Facebook API, OpenStreetMap API, Yelp API, WhatsApp API, Accelerometers
Tools
Android Studio, Visual Studio, IntelliJ IDEA, Perforce, Apache Ant, JWPlayer, Branch.io
Paradigms
Model View Presenter (MVP), Model View ViewModel (MVVM), Reactive Programming, Model View Intent (MVI), Test-driven Development (TDD), Continuous Integration (CI), Scrum
Platforms
Android, Firebase, Google Cloud Platform (GCP), Google App Engine, iOS
Storage
Firebase实时数据库,MySQL, SQLite, Realm, MaxDB, Cloud Firestore
Other
Full-stack, Mobile App Development, GPS, Video & Audio Processing, Video Streaming, Material Design, AdMob, Cisco, Room, Near-field Communication (NFC), Mapbox SDK, Mobile Payments, Bluetooth
Frameworks
ASP.NET, Dagger 2, Flutter
Education
理工科学士学位,计算机科学、数学、物理专业
University of Wisconsin-La Crosse - La Crosse, WI, USA
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