Roman P.
Mobile App Developer | Android Kotlin Java | iOS Swift | UI UX Design
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Show all 19 skill ranks
#50 in Certified Application Developers#51 in Java Persistence API (JPA) Developers#64 in Mobile UI Designers#65 in Kotlin Developers#89 in Mobile App Designers#98 in Virtual Assistants#109 in Backend Rest API Professionals#118 in Flutter Developers#138 in Mobile Device Managements#169 in C++ Programmers & Developers#187 in Android Developers#220 in Mobile App Developers#281 in Android App Developers#523 in API Integration Professionals
Total earned
$142K
lifetime, as published
Jobs
13
contracts to date
Hours
n/a
not published
Client rating
5.0 / 5
7 reviews · JSS 100%
Hourly rate
$35/hr
profile rate
Index Score
74
#18727 overall
Insights
How these are computed- Run-rate, measured
- $21.0K/yr
- Earnings growth between Mar 20, 2025 and Jun 17, 2025 (89 days), annualised. ≈ $1.8K/month.
- Lifetime pace
- n/a
- Lifetime earnings divided by years on Upwork. A floor on historical pace, not a forecast.
- Earnings per job
- $10.9K
- Average contract value to date.
- Realised hourly
- n/a
- Total earned over billed hours. Fixed-price work inflates it; compare with the profile rate.
Index Score breakdown74.1/100
Scale 38.6/45Quality 25/25Trust 0/15Momentum 10.5/15
Observation history
Every read of the public profile. Last observed Oct 30, 2026.
| Observed | Earned | Δ | Jobs | JSS |
|---|---|---|---|---|
| Oct 30, 2026 | n/a | 13 | Not rated | |
| Jun 17, 2025 | $145K | +$2.0K | 5 | 100% |
| May 21, 2025 | $143K | +$1.4K | 5 | 100% |
| Apr 26, 2025 | $142K | +$1.4K | 4 | 100% |
| Mar 28, 2025 | $140K | +$342 | 4 | 100% |
| Mar 24, 2025 | $140K | No change | 4 | 100% |
| Mar 21, 2025 | $140K | No change | 4 | 100% |
| Mar 20, 2025 | $140K | +$1.0K | 4 | 100% |
| Mar 16, 2025 | $139K | 4 | 100% |
About
🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 🏆 ✅ Mobile App Developer 7+ years of experience ✅ SaaS Mobile App Developer 5+ years ✅ 35 mobile app development jobs completed successfully ✅ Android and iOS Mobile Expert ✅ Built 27+ UX-first Mobile App development jobs for 22 companies ✅ On-Time and Cost-Effective Delivery ✅ Future-Proof Solutions Showing a Minimum 41% ROI ✅ 4354 mobile app development hours on Upwork and still counting ✅ 100% Job Success in mobile app development (Client Satisfaction Ratio) ✅ 98% of Clients Recommended working with me ✅ 80% Long-term Repeat Clients ✅ 7+ years of experience in mobile app development, 6 years experience in iOS mobile app development, 7 years experience in Swift and Kotlin, 4 years experience in Flutter, React Native, 2 years experience in KMM, KMP Full stack mobile app developer and mobile app UI UX designer with 7+ years of experience in Mobile App Development, specializing in iOS, Swift, Android, Kotlin, KMM, Kotlin Mutliplatform / KMP, React Native, and Flutter. I have successfully delivered 120+ mobile applications in different roles as mobile app developer, flutter app developer, flutter full stack developer, flutter flow, mobile app design, mobile ui ux designer, swift ios developer, android developer, kotlin developer, react native developer, mobile game developer achieving a 5-star rating on Upwork and helping clients scale their businesses with high-performance solutions. Apart from mobile app development, I specialize in Mobile App Design for both iOS and Android, as well as Web App Design for SaaS platforms. My expertise extends to Interaction Design, User Flow Design, and creating seamless User Experience (UX Design) and User Interface (UI Design). I follow a Design Thinking approach, ensuring every solution is user-centered and problem-solving. My process includes UI/UX Wireframing, Prototyping, and building Style Guides or UI-kits for consistent branding. I perform Design Audits and Design QA to maintain high standards across all projects. 🛠️ Design Tools: My designs come to life through powerful tools like Figma, Zeplin, and InVision for prototyping and collaboration. I leverage Adobe Illustrator, Adobe Photoshop, and Adobe XD for detailed visual design. For complex wireframes and flow mapping, I turn to Axure, Sketch, and Balsamiq. I also use Miro and Abstract for brainstorming and version control, while project communication and management happen in Slack and Jira. Our Expertise at a Glance • Mobile App Development: Android, iOS, & Cross-Platform App Development using Java, Kotlin, Swift, Objective C, Flutter, and more. • Website and Full Stack Development: Crafting seamless back-end experiences with .Net, Python, Java, Javascript, React.js, Angular.js, Node.js, MERN, MongoDB, PHP, etc. • Logo & UI/UX Design: Bringing your ideas to life with Adobe XD, Photoshop, Sketch, Figma, etc. • End-to-End Solutions: From logo design, UI/UX development, workflow setup, testing to deployment in app stores, we've got it all covered. We do not use v0.dev lovable.app CursorAI, Cursor, Windsurf, Trae, GitHub Copilot, Tabnine, Qodo, Devin AI, and AutoDev for speed up coding, we know other methods to do it efficiently. We offer a comprehensive range of development services across mobile, web, and cloud platforms. Our mobile app development expertise includes building Android and iOS applications using technologies such as Flutter, Swift, Objective-C, React Native, and Xamarin, optimized for both smartphones and tablets with a focus on cross-platform compatibility. In website and full stack development, we work with .NET technologies, including full stack .NET development, .NET Core, and Python with Django. Our team is experienced in developing both backend systems and user-friendly, responsive web interfaces, as well as working with various CMS platforms. Our DevOps and DevSecOps capabilities cover cloud infrastructure and automation, leveraging tools like AWS, Azure, Docker, Kubernetes, GitLab CI, Ansible, and Terraform to build secure and scalable deployment environments. We also build cross-platform and web applications using frameworks like Three.js and design tools such as Webflow, creating visually engaging and functional user experiences across devices. Additionally, we are well-versed in integration and automation tools, including WebSockets, data integration, the ABP Framework, Discord API, and Autotask, allowing us to create seamless connectivity and workflow automation between systems. Talent Good Knowledge, Talented, Experienced, Skilled, Strong Experience, Proven Experience, Agency, Team, Company, Specialist, Proven Track Record, Strong Background, Write Clean Code, Deep Expertise, Bring to Life, Cross-platform, Attention to Detail, Long Term. ⚡️ AVAILABLE FOR NEW PROJECTS ⚠️ Press Invite Button on my page and let's talk.Read more
Skills
iOSAndroid App DevelopmentAndroidSwiftKotlinFlutterAndroid SDKReact NativeMobile App DevelopmentApp DevelopmentMobile AppMobile App DesigniOS DevelopmentHybrid App DevelopmentMobile App RedesignMobile UI DesignUI/UX PrototypingUX & UIJavaSmartphone
Profile facts
- Member since
- n/a
- Last contract
- not published
- Availability
- Not published
- Earnings shown as
- exact figure
- Languages
- Not published
- Listed under
- Video Streaming Experts, Android App Developers, Android Developers, Kotlin Developers, Flutter Developers, Android SDK Specialists, Mobile App Developers, Certified Application Developers, Mobile App Designers, Mobile Device Managements, Mobile UI Designers, Java Persistence API (JPA) Developers, Virtual Assistants, App Development Consultants, Android Designers, iPhone App Developers, API Integration Professionals, Backend Rest API Professionals, C++ Programmers & Developers
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