English:
Upper Intermediate
Ukraine
UTC +02:00
Ukraine/Kyiv
Senior Mobile Developer | iOS (Swift, UI Kit) & Flutter (cross-platform).
Engineer with 5 years of experience in Mobile development. He has great expertise in developing both native iOS applications using Swift and UI Kit as well as developing products using Flutter for cross-platform mobile application development. Gained practical experience in Blockchain, Transportation, Education, HealthCare, and E-commerce domains. Used to work with small/medium-sized teams. He worked as a mentor on recent projects sharing his knowledge with other engineers and driving mobile app development for edu project.
Want to hire this engineer?
Check if Kostyantyn is availableExpertise
Years of commercial development experience
5 years of experience
Core technologies
Other technologies
Project Highlights
Digital certificates on the Blockchain
A mobile application that creates unique certificates and registers ownership of E-commerce assets on the Ethereum blockchain. To check the originality of the product, you need to scan the QR code from the label, after that the application will help to avoid counterfeits, as well as learn information about the product. Authorization by phone number and biometric authentication is possible.
Responsibilities & achievements
Project architecture design and implementation; Defining of interface's communications between the Client and API; Taking participation on sprint planning and tasks evaluation; Setup and configure dev or/and prod environments; Direct communication with development team and customer; Development of Client and API application's structure; Code refactoring and improvements.
App for the cargo transportation
Mobile app for both platforms (iOS and Android) that provides drivers with approved delivery orders and tracks them. The app was developed from scratch based on Figma mockups and requirements supplied by the Customer. A driver has his own account for pick-up delivery orders and earns money for that. Also, a driver has the possibility to schedule delivery stuff and report about completed orders. If the driver has some issues with the cargo or they can`t get delivery stuff, they are able to contact the vendor or support via embedded chat. Another part of the whole system is CRM on the customer side which provides other services for the order handling and delivery process.
Responsibilities & achievements
Project architecture design and implementation; Taking participation on sprint planning and tasks evaluation; Code refactoring and improvements.
Fast job marketplace
An E-commerce platform that enables users to rapidly find an hourly job. One user is able to create a job order and the second user has the possibility to apply for a job. The platform includes internal chat, push notifications, reviews about finished jobs, etc.
Responsibilities & achievements
Implement new project from the beginning; Project architecture design and implementation; Taking participation on sprint planning and tasks evaluation; Defining of interface's communications between Client and API; Code refactoring and improvements.
Staff management app
Mobile application, which helps PMs and other administrative roles in Construction to manage the company's projects and employees, track spent time, and completed tasks by the worker. Workers can check their current project details, track spent time and mark completed tasks, request and track the status of vacations and sick leaves.
Responsibilities & achievements
Setting the new project from scratch iOS architecture design and implementation Defining of interface's communications between Client and API Taking participation in sprint planning and tasks evaluation Code review Code refactoring and improvements
Lube auto
The mobile application provides data about cars auctions and allows users to participate in them, store some auctions and car details for later use and add notifications about updates. The application has a built-in app browser, which allows you to create new tabs with the auction web page and manage them
Responsibilities & achievements
Implement new features Taking participation in sprint planning and tasks evaluation Code refactoring and improvements
Education platform with online chat
The Learning management system (LMS) aims to bridge the gap between teachers, students, parents, and admins and have them all in one platform. NIT makes it easy to create and manage all learning activities, such as: creating online classes, assessing students, enhancing collaboration, storing, and tracking individual/ aggregate progress. Besides, the software gives users access to a digital library which includes videos, presentations or ebooks, and chat.
Responsibilities & achievements
Implement new features Project architecture design and implementation Taking participation in sprint planning and tasks evaluation Setup and configure dev or/and prod environments Direct communication with development team and customer Development of Client and API application's structure Code refactoring and improvements
Trading platform
Mobile app — which allows you to buy and sell CFDs on Currencies, Stocks, Indices, Commodities and Cryptocurrencies. Assets such as Facebook, Google, Amazon, major and minor currency pairs, NASDAQ, Dow Jones, CAC 40 and FTSE 100 and many more are available for trading directly from the convenience of your mobile device.
Responsibilities & achievements
Implement new features Defining of interface's communications between Client and API Taking participation in sprint planning and tasks evaluation Setup and configure dev or/and prod environments Direct communication with development team and customer Code refactoring and improvements
Health and fitness application
Mobile app - which allows you to track your exercises, activity and meals. Add favorite exercises and food for quick access. Provide beautiful charts for your activity visualization
Responsibilities & achievements
Project architecture design and implementation Taking participation in sprint planning and tasks evaluation; Team management Direct communication with development team and customer Code review Code refactoring and improvements
Education
Higher education in Computer Science
Agency
50-100
GMT+3
Lviv/Ukraine
Core Expertise
Industries
Education & Science, Logistics & Transportation, E-Commerce & Retail, Banking & Finance, Information services & Technologies, Construction & Real estate, News & Media, Booking & Rent, Insurance & Risk Management, Blockchain & Cryptocurrency, Branding, design, web development, SaaS
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