Валентин

Valentyn Miedientsov
[open contact info](look above in the "contact info" section) | github.com/thehaipe | Lviv, Ukraine

Professional Summary
iOS/macOS Developer with 1.5+ years of experience building and shipping native applications. Specialized in Swift and
SwiftUI with MVVM and offline-first architecture. Delivered three production apps – including a gamified productivity
system leveraging Screen Time API extensions, a native macOS clipboard manager, and an App Store utility app. Proficient in
the full development lifecycle: system design, API integration, App Store submission, and ASO.

Technical Skills
Languages & Frameworks: Swift, SwiftUI, AppKit, Carbon.
Architecture: MVVM-C, SOLID, OOP, POP, Offline-first, Human Interface Guidelines.
Data & Networking: SwiftData, Realm, REST API, URLSession, App Groups.
System APIs: FamilyControls, DeviceActivity, ManagedSettings, Screen Time API, PDFKit.
Tooling: Xcode, XCTest, Xcode Cloud, TestFlight, Instruments (Time Profiler), Git, GitHub, GitLab
Analytics & Distribution: PostHog, App Store Connect, ASO.
AI-Assisted Development: Claude Code, Codex, MCP, Skills and Plugins.
Languages: Ukrainian – Native (C2), English – Intermediate+ (B1+)

Projects
Ravelo – iOS Software Engineer (ravelo.app) December 2025 - Present
Designed and built an iOS productivity platform that turns focused activity into a spendable time balance. Owned the product
and engineering lifecycle – from behavioral research and system architecture to beta distribution and iteration
● Designed and implemented the Time Currency economy, allowing users to earn minutes through productive apps
and focus sessions, then spend them to temporarily unlock distracting apps.
● Built a multi-target Screen Time architecture using FamilyControls, DeviceActivity, and ManagedSettings,
coordinating the main app, monitoring extensions, and custom restriction interfaces.
● Created a shared persistence and synchronization layer with SQLite and App Groups to keep balances, active
sessions, restrictions, and user rules consistent across isolated processes.
● Developed a custom app-blocking lifecycle, including locked-by-default applications, timed access windows,
automatic re-blocking, pause/resume mechanics, and stronger enforcement modes.
● Built productivity analytics and custom visualizations, including earned-versus-spent time, focus trends, time
distribution, and Productivity ROI.
● Designed and implemented the core SwiftUI product experience, including onboarding, a banking-inspired
dashboard, Time Market flows, Quick Actions, and custom Screen Time shield interfaces.
● Owned release quality and beta delivery, coordinating TestFlight distribution, analytics instrumentation, localization,
and iterative testing across more than 310 internal builds.
Bufferly –iOS/macOS Software Engineer (bufferly.app) January 2026 - May 2026
Designed and successfully shipped a native macOS clipboard manager focused on fast retrieval, low cognitive load, and deep
integration with the operating system.
● Built a native clipboard history engine in Swift and AppKit, capturing and persisting copied content while preserving
its originating application.
● Created a custom scroll-driven “Spin Dial” navigation system, enabling users to browse clipboard history through a
distinct, interaction-focused interface.
● Implemented source-aware organization, automatically grouping clipboard items by the application from which they
were copied.
● Integrated Quick Look previews for supported files and content types, allowing users to inspect clipboard items
without opening their source applications.
● Added system-level keyboard and productivity interactions using Carbon APIs for fast access from anywhere in
macOS.
● Optimized the application for low-latency interaction, keeping clipboard capture, history navigation, and previews
responsive during continuous background use.

RentInspector – iOS Software Engineer Jun 2025 – Nov 2025
Built and successfully published an iOS utility that helps tenants document a property’s condition at move-in and move-out and
generate structured evidence for deposit disputes.
● Built a structured property inspection workflow, allowing users to record rooms, defects, notes, and photographic
evidence in a consistent format.
● Implemented on-device PDF report generation with PDFKit, transforming inspection data and images into a
shareable property-condition report.
● Added photo capture and attachment handling, enabling users to associate visual evidence with specific rooms and
reported issues.
● Designed and shipped an iOS utility for documenting rental property condition, generating structured inspection
reports, and preserving evidence for move-in and move-out disputes.

Education
Lviv Polytechnic National University | Bachelor's Degree in Software Engineering 2024 - 2028