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Roman Cinis
Staff Mobile Engineer at CarOnSale
Brno, Czechia
Hello there, I'm a multiple-time awarded Flutter Developer with a solid Design background. Also have basic Swift knowledge, which I occasionally use in my current position as Senior Flutter Developer at CarOnSale.
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2,281.1
CodersRank Rank
Top 1%
Veteran
Developer
Dart
Top 1
Dart
Developer
Czechia
Top 5
Flutter
Developer
Czechia
Highest experience points: 0 points,
0 activities in the last year
Swift
112
exp.
JavaScript
355.6
exp.
C
65.9
exp.
Dart
1,243.3
exp.
JSON
290.9
exp.
List your work history, including any contracts or internships
CarOnSale
2 years 7 months
Staff Mobile Engineer
Dec 2023 - Present (1 year 2 months)
Remote, home office.
Methodologies: Agile, Scrum.
Communication: Google Meet, Slack.
Testing: Unit/Widget/E2E
Other Tools: Atlassian Software.
Working on one of the main projects in the international, English-speaking, development team, cooperating with testers and designers. Some other examples of my work:
- Orchestrated the Flutter greenfield project, and established a stable foundation for a scalable and comfortable development with a best-practice.
- Diving into the native world (added features like overlays on the native iOS camera that work in tandem from Dart to Objective C level and vice versa).
- As part of the development of COS projects I worked on fixes and improvements (merged PRs) to commonly known packages like BLoC, Cloudinary, Flare (old Rive), Swagger Parser, etc. And found and submitted Issues for example in Flutter and Dart SDK, Firebase, Phrase, Codemagic, MSIX, and many others.
Methodologies: Agile, Scrum.
Communication: Google Meet, Slack.
Testing: Unit/Widget/E2E
Other Tools: Atlassian Software.
Working on one of the main projects in the international, English-speaking, development team, cooperating with testers and designers. Some other examples of my work:
- Orchestrated the Flutter greenfield project, and established a stable foundation for a scalable and comfortable development with a best-practice.
- Diving into the native world (added features like overlays on the native iOS camera that work in tandem from Dart to Objective C level and vice versa).
- As part of the development of COS projects I worked on fixes and improvements (merged PRs) to commonly known packages like BLoC, Cloudinary, Flare (old Rive), Swagger Parser, etc. And found and submitted Issues for example in Flutter and Dart SDK, Firebase, Phrase, Codemagic, MSIX, and many others.
Staff Mobile Engineer
Jun 2022 - Nov 2023 (1 year 5 months)
Remote, home-office.
Methodologies: Agile, Scrum.
Communication: Google Meet, Slack.
Testing: Unit/Widget/E2E
Other Tools: Atlassian Software.
Working on one of the main projects in the international, English-speaking, development team, cooperating with testers and designers. Some other examples of my work:
- Added offline Machine Learning for Vehicle Identification Number (VIN) text recognition from the live preview of the mobile phone camera, with Google ML Kit.
- Added offline Machine Learning for QR/Barcode scanning in the live preview of the mobile phone camera, with Google ML Kit.
Methodologies: Agile, Scrum.
Communication: Google Meet, Slack.
Testing: Unit/Widget/E2E
Other Tools: Atlassian Software.
Working on one of the main projects in the international, English-speaking, development team, cooperating with testers and designers. Some other examples of my work:
- Added offline Machine Learning for Vehicle Identification Number (VIN) text recognition from the live preview of the mobile phone camera, with Google ML Kit.
- Added offline Machine Learning for QR/Barcode scanning in the live preview of the mobile phone camera, with Google ML Kit.
Bindworks s.r.o.
Mar 2021 - Jun 2022 (1 year 3 months)
Flutter Developer
Remote, home-office.
Methodologies: Agile, Scrum.
Communication: Google Meet, Slack.
Testing: Unit/Widget/E2E
Other Tools: Atlassian Software, Miro, Postman, etc.
Working on several main projects (product and client apps) in the development team, cooperating with testers and designers. In addition to standard development tasks, I’m also doing UX/UI reviews for UI wireframes and components design. Some other examples of my work:
- Maintain a few company tools and libs (for example OAuth authentication interfaces, iOS HealthKit importer, and iOS Health anonymizer/cleaner).
- Written a complete E2E (integration) test for the company’s main product application that was covered all use cases including error handling (with mocked server responses, authentication, etc.). Including advanced physical device camera mocking with dynamic photo assets loading for cropping/edge detection testing.
Methodologies: Agile, Scrum.
Communication: Google Meet, Slack.
Testing: Unit/Widget/E2E
Other Tools: Atlassian Software, Miro, Postman, etc.
Working on several main projects (product and client apps) in the development team, cooperating with testers and designers. In addition to standard development tasks, I’m also doing UX/UI reviews for UI wireframes and components design. Some other examples of my work:
- Maintain a few company tools and libs (for example OAuth authentication interfaces, iOS HealthKit importer, and iOS Health anonymizer/cleaner).
- Written a complete E2E (integration) test for the company’s main product application that was covered all use cases including error handling (with mocked server responses, authentication, etc.). Including advanced physical device camera mocking with dynamic photo assets loading for cropping/edge detection testing.
Freelance
6 years 10 months
Flutter Developer
Jan 2019 - Mar 2021 (2 years 2 months)
Remote, home-office.
SW development, mainly MVPs (for example social-media games) and small apps (for example the app for issuing orders in the warehouse). Also Rive animations as external motion graphic designer/dev).
SW development, mainly MVPs (for example social-media games) and small apps (for example the app for issuing orders in the warehouse). Also Rive animations as external motion graphic designer/dev).
UI/UX & Graphic Designer
May 2014 - Mar 2021 (6 years 10 months)
Adobe CC: XD, Photoshop, Illustrator, InDesign, Acrobat.
Designed almost everything during those six+ years :). From mobile UX/UI to billboards, e-blasts, web ads, magazine ads, print collateral, signage, brochures, web assets, vector logos, and so on.
Designed almost everything during those six+ years :). From mobile UX/UI to billboards, e-blasts, web ads, magazine ads, print collateral, signage, brochures, web assets, vector logos, and so on.
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