Ivan R.

Lead iOS engineer (Swift, SwiftUI, TCA). I take messy production apps and make them shippable: architecture, tests, and an agent-native workflow so features move without quality dropping. I am Lead iOS at Noom and I run Blue Tail Labs. A decade of native iOS, including product and cross-stack work (protobuf, GraphQL, Kotlin, TypeScript). Toptal member since 2020. What I take: * Hourly, scoped work: SwiftUI/TCA rescue, architecture, feature ownership, App Store / crash / IAP problems, staff-aug on a funded product * AI-native delivery: Cursor, Claude, MCP. I encode architecture and quality gates so agents write the code and I own the review * A short diagnostic first if the codebase is the problem What I skip: * $2k "build my entire app" posts * Speculative equity-only * Work that needs a cheap pair of hands instead of a lead Proof: * Noom: led meal logging and the Premium bundle, then OTC features across iOS, Android, and web. Schema-first so App Store and web share one contract. SwiftUI + TCA, plus a tech-debt plan for the wider team * SweepBright: runtime crashes down more than 95%, then SwiftUI/Combine and a defined architecture so the app could support entering France * Pyrium: mobile crowdfunding MVP that cleared FINRA * Blue Tail Labs: Voucher Exchange and Party Initiative Tracker (Swift + Vapor) Stack: Swift, SwiftUI, TCA, UIKit, Combine, Swift concurrency, Xcode, TestFlight, Fastlane, GraphQL, protobuf, REST, Firebase, HealthKit, watchOS, in-app purchases. I will work Android or web when the contract is shared. I work Ireland time with solid US East overlap. Best fit is 8–15 hours a week, hourly, with a real scope. If that sounds right, send the repo or the job post. I will tell you if I am the person.