Kostyantyn K.
Lviv, Ukraine
100%
Job Success
Top Rated Plus
Mobile App Development | iOS Development | Android App Development
$30.00/hr
👋 Welcome to our 𝐟𝐮𝐥𝐥-𝐜𝐲𝐜𝐥𝐞 Mobile App Development heaven!
As the CEO of Volpis, I possess a profound comprehension of diverse businesses and their 𝐮𝐧𝐢𝐪𝐮𝐞 requirements within the dynamic market landscape. Our commitment lies in fostering transparent and pragmatic development processes 𝐚𝐢𝐦𝐞𝐝 𝐚𝐭 𝐨𝐩𝐭𝐢𝐦𝐢𝐳𝐢𝐧𝐠 𝐭𝐢𝐦𝐞, 𝐜𝐨𝐬𝐭, 𝐚𝐧𝐝 𝐞𝐟𝐟𝐨𝐫𝐭, thereby contributing to the success of our clients' businesses.
🟢 WHY CHOOSE VOLPIS?
⚡️7+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞: With over seven years of hands-on experience in iOS and Android Mobile App Development using Swift, Objective-C, Java, and Kotlin, we bring a wealth of knowledge to the table.
⚡️𝐃𝐨𝐳𝐞𝐧𝐬 𝐨𝐟 𝐬𝐚𝐭𝐢𝐬𝐟𝐢𝐞𝐝 𝐜𝐮𝐬𝐭𝐨𝐦𝐞𝐫𝐬: We're proud to hold the Top Rated Plus account status on Upwork, a testament to our commitment to excellence and client satisfaction.
⚡️𝐌𝐨𝐫𝐞 𝐭𝐡𝐚𝐧 100 𝐬𝐮𝐜𝐜𝐞𝐬𝐬𝐟𝐮𝐥 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬: Our track record speaks volumes with over 1 million downloads on the App Store and Google Play. We don't just develop; we create engaging apps that resonate with users.
⚡️𝐋𝐨𝐧𝐠-𝐭𝐞𝐫𝐦 𝐭𝐫𝐮𝐬𝐭𝐞𝐝 𝐫𝐞𝐥𝐚𝐭𝐢𝐨𝐧𝐬𝐡𝐢𝐩 𝐰𝐢𝐭𝐡 𝐜𝐥𝐢𝐞𝐧𝐭𝐬: We have projects that closed A-round and did not change us as contractors. From laying out requirements and strategy to architecture, development, deployment, and ongoing support, we handle the entire lifecycle.
⚡️𝐃𝐞𝐝𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐭𝐨 𝐰𝐨𝐫𝐤: We're not just developers; we're architects of robust, secure, and seamlessly functioning Mobile Applications for both iOS and Android platforms.
🟢 OUR SERVICES:
● Mobile App Development - Native App Development;
● Android App Development;
● iOS Development;
● Discovery Phase & Business Analysis;
● UX & UI Mobile App Design;
● Back-End Development for Mobile App;
● Quality Assurance & Project Management;
● Product and Technical Consulting;
● Maintenance and Support.
🟢 DOMAINS:
🌟𝐖𝐞 𝐚𝐫𝐞 𝐞𝐱𝐩𝐞𝐫𝐭 𝐠𝐮𝐫𝐮𝐬 𝐢𝐧 Fleet Management, Transportation and Logistics, GPS, Navigation, Routing, Mapping, GIS Solutions; AR - Augmented Reality App; Social Media App and many more.
🟢 TECHNICAL SKILLS:
● iOS Development: Swift, SwiftUI, RxSwift, Objective-C, CocoaPods
● Android App Development: Kotlin, Java, Android SDK
● Back-End: Node.js
● Architecture patterns: MVP, MVVM, MvRx
● Networking: REST, JSON, XML, OAuth
● Hardware: Camera, BLE, Beacon, GPS, Sensors, Wear, Auto, Fingerprints
● AR - Augmented Reality: ARKit, ARCore, RoomPlan, SceneKit
● Database: SQLite, Realm, MongoDB, RoomDB, Firebase Realtime DB, Firebase Cloud Firestore
● Maps: Mapbox, GoogleMaps, HereMaps, Mapbox, TomTom, Navigation, Routing, Clustering, Places Search
● Push Notifications: FCM, Pushwoosh, OneSignal, Amazon SNS, Amazon Pinpoint
● Analytics: Google, Firebase, Mixpanel, NewRelic, Crashlytics
● Payment: Google Play Billing, Stripe, Payfort
🙌 Let’s talk about your project more deeply and crack the rock together. 𝐂𝐨𝐧𝐭𝐚𝐜𝐭 𝐦𝐞 𝐧𝐨𝐰 or 𝐏𝐫𝐞𝐬𝐬 𝐭𝐡𝐞 “𝐈𝐧𝐯𝐢𝐭𝐞” 𝐛𝐮𝐭𝐭𝐨𝐧 to chat!
🔑 KEYWORDS to easily find me: Mobile App Development, iOS, Android, Android App Development, In-App Purchases, Smartphone, User Profile Creation, iOS Development, API Integration, Firebase, Map Integration, Native App Development, Chat & Messaging Software, Location-Based Service, ARKit
Work history
IOS and Android Capture App
Aug 16, 2023
-
Feb 20, 2024
No feedback given
Private earnings
Experienced iOS Developer Needed with SwiftUI and Firebase Experience
5.00
May 7, 2021
-
Oct 10, 2023
"I enjoyed working with Kostya and his team. Very professional, good work, good communication. Highly recommend."
Private earnings
IOS APP
5.00
Nov 14, 2019
-
Apr 28, 2023
"Thanks for the great collaboration!"
Private earnings
iOS developer needed for app offering in app purchases of children's stories
5.00
May 26, 2020
-
Mar 17, 2022
Private earnings
prolinks
5.00
Feb 19, 2021
-
Mar 31, 2021
"Our experience with them was the best professionalism we've ever experienced. They definitely know their stuff."
Private earnings
GPS tracking for ios
5.00
Apr 1, 2020
-
Jan 16, 2021
Private earnings
UI/UX Design
5.00
Sep 18, 2020
-
Oct 1, 2020
"Kostya delivered good work on the UX/UI for phase 1."
Private earnings
Native Android Developer (BP)
5.00
Apr 6, 2020
-
Sep 24, 2020
"Kostya and his team did a great job to support our Android project. The project was picked up quickly and easily, the communication was smooth, the quality of deliverables was…
Private earnings
Travel Measurement Android App for Research (URGENT - hiring deadline Friday, Dec 7th.)
5.00
Dec 7, 2018
-
Jun 20, 2019
"We have thoroughly enjoyed working with Kostya and his team. Not only are they highly skilled, but also very responsive and flexible. The communication with the team was fluid, effective…
Private earnings
Update Existing iOS and Android App to Include New Features and Bug Fixes
5.00
Nov 24, 2018
-
Jun 18, 2019
"Amazing developers who were able to use the existing code and fix errors and make it stable. All the updates were done exactly as requested. Thanks!"
Private earnings
Experienced iOS Engineer for Simple RTSP Stream Viewing App
Apr 5, 2024
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Present
Job in progress
Private earnings
Native App Development with Map Experience
Feb 28, 2024
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Present
Job in progress
Private earnings
Android (Kotlin) and iOS (SwiftUI) Mobile Developer
Feb 23, 2024
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Present
Job in progress
Private earnings
Looking for: Senior iOS developer
Sep 15, 2023
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Present
Job in progress
Private earnings
Android Mobile App developer with real-time location tracking skills to work on on-demand Mobile App
Nov 11, 2022
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Present
Job in progress
Private earnings
Update iOS App
Jun 6, 2022
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Present
Job in progress
Private earnings
iPad note taking app with Firebase backend and IAP
Dec 22, 2020
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Present
Job in progress
Private earnings
Social mobile application development
Sep 21, 2020
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Present
Job in progress
Private earnings
Create Cross-platform or Hybrid mobile APP for collecting/displaying videos of traditional songs.
Jun 2, 2020
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Present
Job in progress
Private earnings
Fitness App
Dec 12, 2019
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Present
Job in progress
Private earnings
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Skills
- iOS
- In-App Purchases
- Smartphone
- User Profile Creation
- API Integration
- Map Integration
- Native App Development
- Location-Based Service
- Chat & Messaging Software
- ARKit
- Mapbox