Ivan K.
Zagreb, Croatia
99%
Job Success
Top Rated Plus
Senior developer - FLUTTER | iOS | ANDROID | SWIFT | JAVA | KOTLIN
$45.00/hr
Hi,
I'm a Senior Mobile App Developer with a Master's Degree in Computer Science.
I have 10+ years of experience with Android development, 8+ year with iOS development and 4+ years of experience with hybrid app development. My technologies include Flutter, Kotlin, Xcode, Swift/SwiftUI, Android SDK, Android Studio, Java, Git, SVN + a few others.
So far I've successfully developed, delivered, and published 100+ applications with excellent ratings and happy users.
Sectors I've worked for:
• Financial Services
• Healthcare / MedTech
• SaaS
• Education
• Internet of Things
• Logistics and Transportation
• Social and Dating Apps
etc.
Besides other international clients, I was working for Sony Mobile Communication, Y Combinator startups, serial Kickstarter entrepreneurs...etc. Working for those clients I've developed solid analytics about the market trends, startup concept, roles, highly competitive environments, startup mindset, and much more..
My feedback is 5 stars because I:
• always stick to deadlines
• write clean, well-documented code
• have endless endurance for debugging the code
• always deliver on time & budget
• have excellent communication skills
• am always available for my clients via Upwork
• have a stable internet connection
• care about clients satisfaction
• am honest and transparent
My applications features:
• IM chat
• social login
• read QR Code
• read Bar code
• record signature
• catch GPS position
• display position on the map
• use WEB services (REST, POST, SOAP)
• mobile Ads integration
• record Video
• record Audio
• take a Photo
• social share integration
• local database
• cloud
• bluetooth (BLE)
• and much more..
I test directly on various different real devices (from old Android to the latest iPhone) to ensure your software works perfectly.
* * * * * * * * * * * * * * * * * * * * * * * *
Related keywords:
Android developer, iOS developer, Web developer, Mobile developer, Kotlin, Xcode, Swift, Android SDK, Android Studio, Java, Git, SVN +, Flutter, GPS, Bluetooth, Native, Hybrid, Hybrid Mobile Development, JavaScript, React, React Native, Node.js, Angular, Front end development, HTML/CSS/JS, Back end development, AWS, Firebase, Full-stack development, Smart TV app development, Android TV app development, Apple TV app development, SaaS expert, IoT
Work History
Flutter App Technical Audit
5.00
Feb 2, 2023
-
Mar 20, 2023
"Cinnamon is a very capable organisation with considerable mobile development experience. They were able to provide a useful audit of our application, with well constructed criticism and suggestions for improvements that will help formulate a roadmap for our product development. Highly recommended."
Private earnings
Website UX Designer for B2B SaaS scale up
5.00
of 2 reviews
Oct 14, 2022
-
Mar 17, 2023
5.00
"The best website agency I have worked with to date, can highly recommend: Cinnamon makes a lot of effort to make sure they keep deliverables within agreed timelines. Quality of work is excellent and communication is easy - they felt like an extension to our team."
Private earnings
Software Developer needed for update to landing page
5.00
of 2 reviews
Sep 19, 2022
-
Jan 9, 2023
5.00
Private earnings
Flutter Developer / Full Stack Ninja
May 16, 2022
-
Dec 19, 2022
No feedback given
Private earnings
Build Responsive MVP Web3 App
5.00
Oct 18, 2022
-
Nov 7, 2022
"Ivan and his team worked on our small piece of work and completed it on time and within budget! Thanks!"
Private earnings
Startup looking for a solid frontend TypeScript/React
5.00
Sep 13, 2022
-
Oct 26, 2022
Private earnings
Flutter Developer For New Mindfulness App
5.00
Mar 3, 2022
-
Oct 21, 2022
Private earnings
Front End Developer
5.00
Jun 30, 2022
-
Sep 26, 2022
Private earnings
UX Designer for Web Application
5.00
Jun 23, 2022
-
Sep 16, 2022
"Professional team, excellent communication skills. Proactive in following up on feedback and finished the work on time."
Private earnings
Geo-location tagged camera application for Android
5.00
Apr 14, 2020
-
Apr 20, 2020
"Ivan was an absolute pleasure to work with. Solid and professional performance on a workshop to define the features of our application!"
Private earnings
Looking for a full stack Flutter developer to give a code review for our app
Mar 24, 2023
-
Present
Job in progress
Private earnings
Expert Bluetooth Developer for custom bluetooth library/framework iOS/Android
Jul 6, 2022
-
Present
Job in progress
Private earnings
Ivan K. has more jobs. Create an account to review them
Portfolio
Want to see more? Create Account
Skills
- Android App Development
- Flutter
- Swift
- Mobile App Development
- Node.js
- UX & UI
- Web Design
- JavaScript
- Firebase
- Kotlin
- React Native
- Apple Xcode
- iOS Development
- Android SDK
- WordPress
- Mobile App Design
Ivan K.
Zagreb, Croatia
99%
Job Success
Top Rated Plus
125
Total Jobs
6,525
Total Hours
View profile
All work
Senior developer - FLUTTER | iOS | ANDROID | SWIFT | JAVA | KOTLIN
Specializes in$45.00/hr
Hi,
I'm a Senior Mobile App Developer with a Master's Degree in Computer Science.
I have 10+ years of experience with Android development, 8+ year with iOS development and 4+ years of experience with hybrid app development. My technologies include Flutter, Kotlin, Xcode, Swift/SwiftUI, Android SDK, Android Studio, Java, Git, SVN + a few others.
So far I've successfully developed, delivered, and published 100+ applications with excellent ratings and happy users.
Sectors I've worked for:
• Financial Services
• Healthcare / MedTech
• SaaS
• Education
• Internet of Things
• Logistics and Transportation
• Social and Dating Apps
etc.
Besides other international clients, I was working for Sony Mobile Communication, Y Combinator startups, serial Kickstarter entrepreneurs...etc. Working for those clients I've developed solid analytics about the market trends, startup concept, roles, highly competitive environments, startup mindset, and much more..
My feedback is 5 stars because I:
• always stick to deadlines
• write clean, well-documented code
• have endless endurance for debugging the code
• always deliver on time & budget
• have excellent communication skills
• am always available for my clients via Upwork
• have a stable internet connection
• care about clients satisfaction
• am honest and transparent
My applications features:
• IM chat
• social login
• read QR Code
• read Bar code
• record signature
• catch GPS position
• display position on the map
• use WEB services (REST, POST, SOAP)
• mobile Ads integration
• record Video
• record Audio
• take a Photo
• social share integration
• local database
• cloud
• bluetooth (BLE)
• and much more..
I test directly on various different real devices (from old Android to the latest iPhone) to ensure your software works perfectly.
* * * * * * * * * * * * * * * * * * * * * * * *
Related keywords:
Android developer, iOS developer, Web developer, Mobile developer, Kotlin, Xcode, Swift, Android SDK, Android Studio, Java, Git, SVN +, Flutter, GPS, Bluetooth, Native, Hybrid, Hybrid Mobile Development, JavaScript, React, React Native, Node.js, Angular, Front end development, HTML/CSS/JS, Back end development, AWS, Firebase, Full-stack development, Smart TV app development, Android TV app development, Apple TV app development, SaaS expert, IoT
Work History
Flutter App Technical Audit
5.00
Feb 2, 2023
-
Mar 20, 2023
"Cinnamon is a very capable organisation with considerable mobile development experience. They were able to provide a useful audit of our application, with well constructed criticism and suggestions for improvements that will help formulate a roadmap for our product development. Highly recommended."
Private earnings
Website UX Designer for B2B SaaS scale up
5.00
of 2 reviews
Oct 14, 2022
-
Mar 17, 2023
5.00
"The best website agency I have worked with to date, can highly recommend: Cinnamon makes a lot of effort to make sure they keep deliverables within agreed timelines. Quality of work is excellent and communication is easy - they felt like an extension to our team."
Private earnings
Software Developer needed for update to landing page
5.00
of 2 reviews
Sep 19, 2022
-
Jan 9, 2023
5.00
Private earnings
Flutter Developer / Full Stack Ninja
May 16, 2022
-
Dec 19, 2022
No feedback given
Private earnings
Build Responsive MVP Web3 App
5.00
Oct 18, 2022
-
Nov 7, 2022
"Ivan and his team worked on our small piece of work and completed it on time and within budget! Thanks!"
Private earnings
Startup looking for a solid frontend TypeScript/React
5.00
Sep 13, 2022
-
Oct 26, 2022
Private earnings
Flutter Developer For New Mindfulness App
5.00
Mar 3, 2022
-
Oct 21, 2022
Private earnings
Front End Developer
5.00
Jun 30, 2022
-
Sep 26, 2022
Private earnings
UX Designer for Web Application
5.00
Jun 23, 2022
-
Sep 16, 2022
"Professional team, excellent communication skills. Proactive in following up on feedback and finished the work on time."
Private earnings
Geo-location tagged camera application for Android
5.00
Apr 14, 2020
-
Apr 20, 2020
"Ivan was an absolute pleasure to work with. Solid and professional performance on a workshop to define the features of our application!"
Private earnings
Looking for a full stack Flutter developer to give a code review for our app
Mar 24, 2023
-
Present
Job in progress
Private earnings
Expert Bluetooth Developer for custom bluetooth library/framework iOS/Android
Jul 6, 2022
-
Present
Job in progress
Private earnings
Ivan K. has more jobs. Create an account to review them
Portfolio
Want to see more? Create Account
Skills
- Android App Development
- Flutter
- Swift
- Mobile App Development
- Node.js
- UX & UI
- Web Design
- JavaScript
- Firebase
- Kotlin
- React Native
- Apple Xcode
- iOS Development
- Android SDK
- WordPress
- Mobile App Design
Hours per week
More than 30 hrs/week
< 24 hrs response time
Associated with
