Productivity app that monitors and limits distracting apps using Apple Screen Time APIs.
- iOS App
- Screen Time
- Swift
- Screen Time API
- RxSwift
- Clean Architecture
Portfolio
Daniyar Kurmanbayev
iOS, backend, and product engineering portfolio with senior freelance credibility built from shipped work.
- iOS
- Backend
- Product Engineering
- Astro
- TypeScript
Projects: 17 · Links: 24 · Featured: 3
Flagship
Flagship projects
Projects grouped under flagship work, ordered by portfolio priority.
4 projects
Passive StoreKit 2 monitoring SDK for reliable revenue attribution and fraud prevention.
- iOS SDK
- StoreKit 2
- Swift
- StoreKit 2
- Swift Package
- Networking
Privacy-centric proximity discovery and peer clustering PoC using Nearby Interaction and Rust.
- iOS + Rust
- Proximity / P2P
- SwiftUI
- Nearby Interaction
- MPC
- Rust
- H3
Production grocery delivery app with full catalog, checkout, and order lifecycle.
- iOS App
- Grocery Delivery
- UIKit
- RxSwift
- Moya
- Firebase
Production
Production projects
Projects grouped under production work, ordered by portfolio priority.
4 projects
Multi-brand food delivery app rebuilt mid-project to achieve production quality and stability.
- iOS App
- Food Delivery
- UIKit
- RxSwift
- Moya
- MVVM-C
SwiftUI app that generates hashtags from text or images using a credit-based IAP model.
- iOS App
- Creator Tools
- SwiftUI
- StoreKit 2
- SwiftData
- Clean Architecture
Goal-tracking app that reached Top-8 in Productivity and Top-100 overall on launch.
- iOS App
- Productivity
- UIKit
- RxSwift
- StoreKit
- Firebase
Meditation and self-development app rebuilt from scratch and shipped under tight deadlines.
- iOS App
- Meditation
- UIKit
- StoreKit
- AVFoundation
- RxSwift
Backend
Backend projects
Projects grouped under backend work, ordered by portfolio priority.
3 projects
Marketplace for booking children’s classes with iOS app and Django backend.
- iOS App + Backend
- Booking Platform
- UIKit
- Alamofire
- Django
- Celery
Telegram bot that collects qualified travel leads and syncs them to Bitrix24 CRM.
- Bot
- Lead Generation
- Python
- Django
- Telegram API
- SpeechKit
Django backend for a two-sided marketplace for interior designers and home services.
- Backend
- Marketplace
- Django
- DRF
- Celery
- CloudPayments
AI
AI projects
Projects grouped under ai work, ordered by portfolio priority.
3 projects
YOLOv5-based detection of yawning and closed eyes with a deployed video-processing web demo.
- AI/ML
- Computer Vision
- Python
- PyTorch
- YOLOv5
- OpenCV
- Flask
- Docker
Object detection pipeline for ASL hand sign localization and classification, benchmarked across SSD/YOLO/Faster R-CNN.
- AI/ML
- Computer Vision
- Python
- YOLOv5
- Detectron2
- TensorFlow OD
- Roboflow
NLP classifier for identifying disaster-related tweets, with experiments across classical ML and neural models.
- AI/ML
- NLP
- Python
- NLP
- TF-IDF
- GRU
- Django
Legacy
Legacy projects
Projects grouped under legacy work, ordered by portfolio priority.
3 projects
Redesign and rate-reservation features for a major currency exchange app in Kazakhstan.
- iOS App
- Fintech
- UIKit
- Alamofire
- Firebase
15-minute delivery app concept with full shopping and checkout flow.
- iOS App
- Grocery Delivery
- UIKit
- RxSwift
- Alamofire
- Yandex Maps
Lightweight Swift networking library standardizing endpoints, logging, and error handling.
- Library
- Networking
- Swift
- Alamofire
- CocoaPods
Contact
Available for iOS, backend, and product engineering work.
Direct contact is preferred for project work, technical audits, and freelance engagements.
