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Nikita Rodin
Verified Expert in Engineering
Software Developer
Gdańsk, Poland
Toptal member since March 8, 2016
Bio
Nikita has over 15 years of experience developing iOS applications and over 7 years developing Android applications. He has worked on various types of projects, including business applications, social networks, video and image editing apps, music apps, and Bluetooth-enabled apps. Nikita has a deep understanding of recent AI tooling, hands-on experience with edge inference, building AI workflows, creating their own MCP servers, and skills to facilitate development.
Portfolio
Topcoder
Amazon Web Services (AWS), Xcode, Address Book, EventKit, iOS SceneKit...
The Perky People Co
iOS, Xcode, iOS SDK, Swift, SwiftUI, GitHub Actions, Kotlin, Android Studio...
Anytune Inc.
Objective-C, MacOS, Swift, SwiftUI, iOS, Apple, NSView, Core Graphics, KVC...
Experience
- iOS - 12 years
- Xcode - 12 years
- Objective-C - 11 years
- Swift - 7 years
- Android - 5 years
- Java - 4 years
- AVFoundation - 4 years
- RxSwift - 3 years
Preferred Environment
Git, Xcode, MacOS
The most amazing...
...thing I’ve coded was a mathematical algorithm for rectifying photos in a 3D reconstruction project.
Work Experience
Development Competitor
2014 - PRESENT
Topcoder
- Developed an access management app that allows entrance to restricted points with authentication via Bluetooth LE.
- Built a simple entrance-check app which was integrated with Salesforce and a mobile signature app with an offline Salesforce integration.
- Developed prototype apps for a variety of uses like Ebola symptoms-tracking, health-tracking, making photo blogs, and incident reporting.
- Created a 2D game about cloud computing; the gameplay is similar to Angry Birds.
- Developed and supported a sales and management tool app.
- Reskinned a simple NSIS-based installation tool to a sophisticated UI.
- Built a tool for taking acknowledgement signatures from people participating in photos.
- Developed and supported an app for streaming licensed video content to university campus users on iOS devices.
- Created a variety of apps: an app for the easy submission of Jira tickets by hardware users, a POC app for iOS devices discovering and connecting via WiFi, a tutorial app showcasing some features of iOS frameworks, a branded version of a Bible-listening app, and a helper app for stadium visitors.
- Developed a framework which integrates placing top bets, a UI, and a functionality.
- Supported a survey-conducting app, a news aggregator app. an app for streaming licensed video content to users on AndroidTV devices, a video-surveillance app, and an app for streaming licensed video content to users on Android devices.
- Developed a wakeup alarm app for the Apple Watch.
- Built a sharing extension for a media-viewing app.
- Built a framework which integrates a passcode/pin UI control.
- Implemented fancy graphs in a diving-tracking application.
- Created a framework which wraps a Vimeo API for presenting contents of a Vimeo PRO account.
- Integrated mastering event-handling for an app that helps with the administration tasks on naval oil stations.
- Converted a large sales management app from Objective-C to Swift 2.0.
- Developed a customer management tool for sales managers in a cable network.
- Constructed UI test suites for iOS apps.
- Involved in the development and testing of a C++ video recording app.
- Built a business app for space program information tracking (iOS and Android).
- Developed an emulator app serving as a terminal for Tandem Computers on iPad.
- Built a Tinder-like social app for motorcycle owners.
Technologies: Amazon Web Services (AWS), Xcode, Address Book, EventKit, iOS SceneKit, Core Bluetooth, WatchKit, Core Data, Android Studio, Realm, Google+ iOS SDK, Bluetooth Low Energy (LE), Amazon DynamoDB, Amazon Cognito, Google Maps, Social Framework, Facebook iOS SDK, JSON Web Tokens (JWT), Box API, Model View ViewModel (MVVM), RxSwift, Embedded Systems, Apple Watch, MacOS, SOAP, REST, Salesforce, NSIS, Java, Android, Swift, Objective-C, iOS, iOS SDK, SDKs, Core Location, WatchOS, UIKit, Animation, User Interface (UI), Augmented Reality (AR), SwiftUI, Mobile, Computer Vision, tvOS, Apple TV
Mobile Developer
2025 - 2025
The Perky People Co
- Set up white label targets for native iOS and Android applications.
- Set up CI via Xcode Cloud for iOS and GitHub Actions for Android for all app targets.
- Oversaw passing initial App Store and Play Store review, iterated on resolving all remaining issues.
Technologies: iOS, Xcode, iOS SDK, Swift, SwiftUI, GitHub Actions, Kotlin, Android Studio, Jetpack Compose, Continuous Integration (CI)
Objective-C Apple Developer
2024 - 2025
Anytune Inc.
- Supported a music app with over 1.5 million users worldwide, resolved OS-related performance issues, and improved functionality based on low-level C-based audio APIs.
- Developed a low-level precise Count-in feature and made it available for all platforms.
- Developed the Apple Watch companion app, including synchronization between the iOS and Apple Watch apps.
- Reworked news section to integrate directly with help center provider.
- Worked on next generation of the app, implemented feature-full audio streaming from Spotify and Apple Music.
Technologies: Objective-C, MacOS, Swift, SwiftUI, iOS, Apple, NSView, Core Graphics, KVC, Core Data, AppKit, Core Foundation, Core Audio, WatchKit, WatchOS, Spotify, Apple Music, Combine
iOS Developer
2023 - 2024
DMJC, LLC
- Performed code review for the SDK, outlined issues, and provided suggestions.
- Implemented encryption for the Core ML model from within SDK.
- Set up and documented the deployment process for the SDK via CocoaPods and SPM.
Technologies: iOS, Swift, iOS SDK, SDK Development, Core ML, SwiftUI
iOS Engineer
2023 - 2023
SAS Sabi Agri
- Supported an app for creating and managing robot mission orders that I developed in the previous iteration.
- Built a diagnostics app for robots from scratch, which allowed connecting to a robot directly, viewing both real-time and pre-recorded diagnostics data in the form of charts.
- Enhanced the diagnostics app with tracking features, login, and logging. Provided documentation for further development.
Technologies: iOS, Swift, JSON, iOS Native Libraries, iOS SDK, Geospatial Data, iPad, Robot Operating System (ROS), SwiftUI
Swift/Kotlin Developer
2023 - 2023
Smartfit Investments, Inc DBA Simple Nursing
- Supported iOS and Android native apps for nursing, studying, and passing NCLEX. Managed platform issues and delivered updates to the App Store and the Play Store.
- Fixed several critical UX bugs deemed unfixable by previous developers, which improved App Store ratings.
- Launched the app onboarding/navigation redesign for both Android and iOS apps.
- Improved the quiz functionality and implemented interactive rationales browsing on the iOS version.
Technologies: Swift, Android, iOS, Kotlin, REST APIs, Objective-C, Xcode, SwiftUI, Mobile
iOS Engineer
2023 - 2023
SAS Sabi Agri
- Developed an app for creating and editing mission orders and viewing work reports for agricultural robots. Integrated with Google Maps.
- Added file management system and implemented synchronization with AWS buckets.
- Worked on communication protocol for sending files, receiving status, position, and teleoperating the robot remotely.
Technologies: iOS, Swift, JSON, iOS Native Libraries, iOS SDK, Geospatial Data, iPad, Robot Operating System (ROS), SwiftUI, Combine, Mobile, Computer Vision
Swift Developer
2022 - 2023
Freelance
- Supported a music creation app with social network features.
- Implemented several major features for the audio studio, including multiple effects and draft session support.
- Crafted the profile redesign for drafts and playlists.
- Revamped the experience for writing lyrics for tracks.
Technologies: Swift, Animation, User Interface (UI), A/B Testing, AudioKit, In-app Purchases, Mobile
Mobile App Developer
2022 - 2022
Devin Anda
- Implemented native iOS (Swift) and Android (Kotlin) apps for a restaurant company.
- Integrated the apps with a geofencing feature to detect when the user is walking near a venue and push notifications via Firebase.
- Launched the developed apps on the App Store and Play Store.
Technologies: iOS, Android, Model View Presenter (MVP), Model View Controller (MVC), Model View ViewModel (MVVM), JSON, Git, Location Services, GraphQL, Mobile
iOS Developer - Swift
2022 - 2022
Sweetgreen Inc - IT
- Supported an ordering app for the client's restaurant network.
- Oversaw the launch of loyalty features on the iOS app side.
- Tracked and fixed bugs using Jira as a reporting tool and AppCenter as a crash analytics service.
- Performed minor refactoring and increased coverage of UI and unit tests.
Technologies: Swift, Objective-C, Braze, Push Notifications, Unit Testing, UI Testing, UIKit, Animation, A/B Testing, User Interface (UI), Mobile
iOS Swift Developer
2021 - 2022
PT Harta Karunia Indonesia (via Toptal)
- Refactored significant parts of a large app utilizing the latest language features, including property wrappers and result builders.
- Created the base for version 2 of the app and migrated the majority of existing functionality into it.
- Introduced flow coordinators into app architecture, which reduced the amount of business logic in view controllers.
Technologies: iOS, Swift, AsyncDisplayKit, Model View ViewModel (MVVM), Flow Coordinators, RxSwift, UIKit, User Interface (UI), Mobile
iOS Lead Developer
2018 - 2022
15 Seconds of Fame
- Led a team of iOS developers, QA automation, and DevOps engineers.
- Built an SDK for partners that can be embedded to provide app features in the partners' app.
- Reworked the onboarding process, including the addition of phone registration.
- Completed several redesigns of the app by adding many new features.
Technologies: Xcode, Core Bluetooth, Core Data, RxSwift, Swift, iOS, Image Manipulation, Core Image, iOS SDK, SDKs, Core Location, UIKit, Animation, A/B Testing, User Interface (UI), Mobile, Computer Vision
iOS and Android Developer
2017 - 2020
Picture Marketing (via Toptal)
- Implemented asset management system which pre-downloaded all required media for an onsite booth app to function offline with the ability to keep on going downloads and launch experience on the fly prioritizing assets that are currently to be used.
- Set up various image and video effects based on Core Image built-in effects.
- Made implementation of automated background removal, utilizing a depth camera for images and live video.
- Applied video post-processing effects like time scaling, concatenating, and injecting (with optional positioning and rotation).
- Backed four different iOS apps intended for photo booths on onsite events, including capture point, sharing station, scan station, and handheld photography.
- Supported handheld photography Android app, including finishing app redesign and improving the experience with external cameras.
Technologies: Xcode, Core Bluetooth, Model View ViewModel (MVVM), OpenGL, Android Studio, Realm, Kotlin, Java, Android, Swift, Objective-C, iOS, Image Manipulation, AVFoundation, OpenGL ES, Core Image, UIKit, Animation, User Interface (UI), Mobile, Computer Vision
Developer (Major Update to a CRM-like Mobile App)
2017 - 2017
WebEdge Marketing (via Toptal)
- Supported an existing version of a people field-tracking app.
- Implemented version 2 of the app with a design revamp and a number of new features.
- Integrated a couple of analytic services.
- Supported app submission to the App Store and TestFlight. The app is accessible in a link in my portfolio.
Technologies: iOS, Xcode, Segment, UXCam, Heap, Intercom, MapKit, Nationbuilder, REST, Cocoa Touch, Objective-C, UIKit, A/B Testing, User Interface (UI), Mobile
Senior iOS Developer
2017 - 2017
Storia
- Participated in the rewrite of an existing social app written in Objective-C to Swift; a link to the app can be found in my portfolio.
- Developed an on-boarding flow including social logins.
- Developed an action-notifications functionality, provided testing for related behaviors with Quick and Nimble.
- Developed a create-and-repost flow for user posts with intermediate draft-saving, creating folders if needed, and inviting other users to view or collaborate.
- Applied updated designs from Zeplin and the Sketch app to the UI across various parts of the app. Developed minor features such as image gallery, image picking, cropping, and more.
- Designed, developed, and refined the back-end features of the app such as local data persistence, distribution, modification, and remote data fetching.
Technologies: iOS, Xcode, Zeplin, Nimble, RxSwift, PromiseKit, Core Data, Cocoa Touch, Swift, UIKit, Animation, User Interface (UI), Mobile
Senior iOS Developer
2016 - 2017
15 Seconds of Fame
- Applied new design to a short movie recording social app.
- Implemented 3 pixel-perfect versions of a provided design for 4, 4.7, 5.5" iPhones.
- Rewrote significant parts of functionality from Objective-C to Swift, refactored code to reduce its size and improve maintainability.
- Implemented several new features. A link to the app can be found in my portfolio.
Technologies: iOS, Address Book, Core Data, Core Location, Adobe Photoshop, AVFoundation, Xcode, Facebook, REST, Swift, Objective-C, UIKit, User Interface (UI), Mobile
iOS Developer (Objective-C)
2016 - 2017
Foojee (via Toptal)
- Applied a new design to an existing application for notifications about emergencies.
Technologies: Xcode, Objective-C, iOS, UIKit, User Interface (UI), Mobile
iOS Developer
2016 - 2017
SkillHeart (via Toptal)
- Integrated a mobile app for video interviews with back-end services.
- Provided guidance for the back-end team on best practices to use for a smoother integration.
- Implemented new features and created separate branded versions with continuous support on all versions of the app.
- Supported the app submission to the App Store; a link to the app can be found in my portfolio.
Technologies: Xcode, Objective-C, iOS, UIKit, Animation, User Interface (UI), Mobile
Dubble's App Developer
2016 - 2016
AdzMikl (via Toptal)
- Created an iOS app for consulting—implementing both the code and design.
- Integrated the app with a Backendless solution.
- Provided guidance for submitting app to the App Store.
Technologies: iOS, Xcode, Firebase, Cocoa Touch, Swift, UIKit, Mobile
iOS Developer
2016 - 2016
Qube (via Toptal)
- Implemented a save-and-restore-session feature in the photo editor app; a link to the app can be found in my portfolio.
Technologies: iOS, Xcode, Core Graphics, OpenGL, Swift, UIKit, Mobile
iOS Prototype Developer
2016 - 2016
MNE (via Toptal)
- Created a small prototype social app.
Technologies: iOS, Xcode, Swift, UIKit, User Interface (UI), Mobile
iOS Developer
2016 - 2016
527H (via Toptal)
- Supported a diet tracker app using Swift, Cocoa Touch, and a number of third-party frameworks.
- Implemented the orders feature in a diet tracker.
- Integrated HealthKit for user activity charts.
Technologies: iOS, Xcode, Core Data, HealthKit, Swift, UIKit, Animation, User Interface (UI), Mobile
Senior iOS Software Developer
2014 - 2016
Artezio
- Developed and supported a personal finance tracker app; a link to the app can be found in my portfolio.
- Supported a cinema ticket-selling app.
- Developed and supported a pair of related farm management apps.
- Supported a VoIP social network app.
- Developed a bank client app; a link to the app can be found in my portfolio.
- Implemented a synchronization via Dropbox for a personal finance tracker app.
Technologies: iOS, Xcode, Core Data, REST, Swift, Cocoa Touch, Objective-C, UIKit, CloudKit, A/B Testing, Mobile
iOS Software Developer
2011 - 2014
Artezio
- Integrated a custom MSCryptoAPI-based security framework into mobile document flow engine.
- Developed a traveling planner app.
- Supported the version 2.0 of a cinema ticket-selling app.
- Developed and supported version 3.0 of a cinema-ticket-selling app; a link to the app can be found in my portfolio.
- Developed a small marketing app for our partner company.
- Supported a sales tool for smoking products.
Technologies: iOS, Xcode, Microsoft CryptoAPI, LDAP, SOAP, REST, Cocoa Touch, Objective-C, UIKit, Mobile
Junior iOS Software Developer
2010 - 2011
Synesis
- Developed a discount-selling app using Objective-C and Cocoa Touch.
- Implemented a money transfer and currency conversion functionality for a bank client app using Objective-C and Cocoa Touch.
- Ported a 2D game from Windows to iOS using HGE, C++, and OpenGLES.
- Participated in the porting of another 2D game from Windows to iOS using HGE, C++, OpenGLES, and Lua.
- Developed the iOS part of a hybrid app for viewing auctions.
Technologies: iOS, Xcode, HGE - Haaf's Game Engine, OpenGL ES, Lua, C++, Cocoa Touch, Objective-C, UIKit, Mobile
Experience
Infer Ring
https://github.com/N1k1tung/infer-ringThe world's first app to facilitate distributed inference of large language models across iOS and macOS devices. Just run the app on each device - they will find each other automatically, and combine their RAM to unlock models that wouldn’t fit on a single machine. It can work over Wi-Fi and wired connections, so you can just plug a USB cable between two phones or tablets, and they will connect automatically, preferring wired connections.
You can download the app from the App Store: https://apps.apple.com/us/app/infer-ring/id6757767558, both for Mac and iOS.
You can download the app from the App Store: https://apps.apple.com/us/app/infer-ring/id6757767558, both for Mac and iOS.
xcode-mcp-proxy
https://github.com/N1k1tung/xcode-mcp-proxyThis simple MCP server is a multi-client pass-through tool for Xcode 26.3 and later. It fixes an annoying permission issue caused by the architectural nature of modern agentic tools, which launch as separate processes along with standard input and output MCP servers for every session.
15 Seconds of Fame
https://itunes.apple.com/us/app/15sof/id964715438?mt=8.Lead a small iOS team to implement a full redesign of the app and create branded integrations via a standalone SDK, as well as migrating the old codebase from Objective-C to Swift and replacing obsolete dependencies.
TripPlanner
This project comprises a simple trip planner application that integrates Firebase to authenticate users and manage their trips. Users can have different roles, while both administrators and managers can manage the users.
MySampleCode.zip
A wrapper framework for the Vimeo API with a sample application showing how to use it. It should be used to let people browse your Vimeo Pro account on iOS devices. More information and all running instructions are provided in the README file in the root folder.
Education
2007 - 2012
Bachelor's Degree in Computer Science
Belarusian State University - Minsk, Belarus
Certifications
JULY 2026 - PRESENT
Deep Learning Specialization
DeepLearning.AI
Skills
Libraries/APIs
RxSwift, Salesforce API, Core Image, Box API, Google Maps, Google+ iOS SDK, OpenGL, PromiseKit, Dropbox API, CocoaPods, Core Graphics, VK API, HealthKit, Core Animation, OpenGL ES, SpriteKit, Google API, X (formerly Twitter) SDK, Facebook iOS SDK, iOS Native Libraries, AudioKit, Vimeo API, REST APIs, NSView, Core Audio, Hugging Face Transformers
Tools
Interface Builder, Xcode, Git, Codex, Amazon Cognito, Zeplin, Adobe Photoshop, Subversion (SVN), iOS Instruments, Android Studio, Adobe Illustrator, NSIS, AWS SDK, Sketch, AsyncDisplayKit, Braze, Claude Code, GitHub Copilot
Languages
Swift, Objective-C, Kotlin, Java, C++, Lua, GraphQL, Go, Bash Script
Frameworks
Cocoa Touch, UIKit, iOS SDK, SwiftUI, WatchKit, Core Location, Core Data, Core Bluetooth, JSON Web Tokens (JWT), Social Framework, Message UI, XCTest, MapKit, Core Motion, EventKit, Address Book, iOS SceneKit, CloudKit, Combine, Core ML, AppKit, Core Foundation, SwiftNIO
Platforms
iOS, Mobile, Android, Salesforce, Apple Watch, Bluetooth Low Energy (LE), Nationbuilder, Amazon Web Services (AWS), MacOS, Firebase, Keychain, WatchOS, Backendless, tvOS, Apple TV, Apple
Paradigms
REST, Object-oriented Programming (OOP), Model Context Protocol (MCP), Model View ViewModel (MVVM), Functional Programming, Concurrent Programming, Unit Testing, Model View Presenter (MVP), Model View Controller (MVC), Continuous Integration (CI)
Storage
Amazon DynamoDB, Realm, JSON, SQLite
Other
SDKs, User Interface (UI), AVFoundation, Image Manipulation, Animation, HGE - Haaf's Game Engine, LDAP, Microsoft CryptoAPI, Embedded Systems, Facebook, Nimble, Intercom, Heap, UXCam, Segment, SOAP, Flow Coordinators, Push Notifications, UI Testing, A/B Testing, Augmented Reality (AR), Location Services, Geospatial Data, iPad, Robot Operating System (ROS), Vimeo, In-app Purchases, Computer Vision, SDK Development, KVC, Spotify, Apple Music, GitHub Actions, Jetpack Compose, MLX, Large Language Models (LLMs), Deep Learning, Machine Learning, AI/ML Workloads
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