Roman S.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Hi, My name is Roman Seredenko. Since 2011, I worked iOS application developer. Summary — 10 years in software development experience — Good knowledge of System Development Life Cycle — Strong knowledge of Objective-C and Swift. — Strong communication skills with an ability to lead a team and keep them motivated — Experienced with Agile(Scrum), Kanban — Experience in stressful situation within limited time frames — Intermediate English GENERIC EXPERTICE — Generic Objective-C development — Generic Swift development — Object-oriented design and development, Design patterns like MVC, MVP/MVVM, Observer etc. — Performance optimization — Algorithms — Apple guidelines on iOS programming — Building client-server application using REST and JSON PRIMARY RESPONSIBILITIES IN PRECEDING PERIOD — Requirements gathering and analysis — Estimating and planning — Functional and technical specifications development — Team leading, planning, scheduling, task sequencing — Client management and communication with project stakeholders — Team mentoring and coaching — Team performance evaluation — Application design and source code development — Performance profiling and optimization SKILLS — Objective-C, Swift — Foundation, UIKit, WatchKit — Core Animation, Core Graphics, PDFKit, Quartz — Accounts, CallKit, Contacts, Core Data, Core Location, Core Text, MapKit, UserNotifications — AVFoundation, AVKit, Media Player, Photos, WebKit — Automator, Code Diagnostic, XCTest — SVN, GIT, Source Tree.