sergeybochkoff
I Os Developer
iOS Developer with 4+ years of commercial experience in Travel, FoodTech, and Streaming. Experienced in working both on-site and remotely within cross-functional teams ranging from 3 to 35 members. Specialist in building fault-tolerant business logic, high-performance interfaces, and implementing modern concurrency (async/await, Actors). Proficient in SwiftUI and UIKit with a proven track record of migrating complex legacy systems to modern architectures.
Experience: 4 years
Yearly salary: $42,000
Hourly rate: $30
Nationality: 🌏 Remote
Residency: 🇳🇱 Netherlands
Experience
iOS Developer
ONETWOTRIP 2023 - 2024
Refactored booking modules by migrating from a legacy imperative UIKit stack to modern SwiftUI/Combine, which reduced new feature development time by 31%. Implemented Swift Concurrency (async/await, Actors) for data management, ensuring strict data isolation and eliminating Data Race issues within order modules. Optimized list rendering using shadowPath and image downsampling; reduced memory footprint by 20% while maintaining a stable 120 FPS. Engineered a scalable protocol-based analytics system to replace rigid Enum structures, eliminating merge conflicts and ensuring complete code isolation.
iOS Developer
IVI 2022 - 2023
Decomposed legacy modules (4000+ LOC) into MVVM architecture, enabling the team to ship new features in these sections 1.5x faster. Implemented advanced video pre-fetching and caching logic, reducing video start-up latency by 15%. Developed interactive catalog animations using CoreAnimation, increasing click-through rate (CTR) from the movie list to the details page by 7%. Authored over 300 Unit tests for critical business logic nodes, ensuring application stability during large-scale refactoring phases.
Skills
swift
ios
english
russian