Senior iOS Engineer - Crypto

Career Renew is recruiting for one of its clients a Senior iOS Engineer - Crypto - this is a fully remote role for US-based candidates. Salary range: 250-375K USD yearly.As a Senior iOS Engineer, you’ll be the mobile lead for shaping how users engage with this new asset layer—bringing exceptional UI/UX for consumers, creators, and communities. You will drive the architecture, development and evolution of our native iOS application(s). You’ll collaborate with UX/design, product, Web3 and backend teams to deliver a slick, intuitive mobile experience that makes onchain asset interactions feel simple, elegant and trustworthy. You’ll act both as handson technical contributor and as a mentor/lead shaping the mobile team and designdriven engineering culture.Key ResponsibilitiesLead the design and development of the iOS app for the platform, focusing on consumerfacing flows: token discovery, launch, trading, social interactions, wallet connectivity, onboarding, notifications.Partner closely with UI/UX designers to translate highfidelity designs into polished native iOS interfaces—animations, transitions, adaptive layouts, accessibility, dark/light modes, internationalisation.Architect and implement reusable modules, frameworks and mobile architecture best practices (e.g., MVVM/Clean Architecture, reactive programming, modularisation, dependency injection), ensuring scalability and maintainability.Collaborate with product/design to define mobilespecific user journeys, usability, retention drivers, microinteractions, onboarding conversion, and mobilefirst social features.Ensure performance, reliability and security of the app: crashfree, responsive, batteryefficient, secure key handling (if wallet or token flows), network resilience, caching, offline support.Use analytics and telemetry to monitor mobile behaviour (engagement, retention, conversion), define instrumentation, iterate on UX and performance improvements.Mentor and guide other mobile engineers: code reviews, mobile best practices, mobile dev culture, continuous delivery, testing strategy (unit, UI, integration).Stay abreast of iOS platform/OS advances, Web3/mobile intersection trends and propose improvements to toolchain, architecture, and user interface paradigms.Required Qualifications3 years of professional experience in native iOS application development, shipping consumerfacing apps to the App Store.Demonstrable portfolio of iOS apps with strong UI/UX polish: fluid animations, refined transitions, customised UI components, adaptive layouts, accessibility features.Excellent proficiency in Swift (and UIKit/SwiftUI) and experience in designing architecture for largescale production apps.Understanding of mobile UX design principles, humaninterface guidelines (Apple HIG), and keen attention to design details and interaction quality.Strong collaboration skills with designers and product teams - comfortable participating in discovery, defining mobile flows, iterations.Experience with performance optimisation (startup time, memory/CPU, UI responsiveness), mobile analytics instrumentation, and crash/performance monitoring.Solid experience mentoring others, establishing mobile engineering practices, leading code reviews and mobile team culture.Excellent communication skills in English; ability to work in a fastpaced environment, across distributed global teams.Passion for Web3 or willingness to dive into the blockchain/mobile frontier and mobile user experiences for tokenlaunch & social finance.What You’ll GetOpportunity to shape the mobile experience of a cuttingedge Web3 platform that reimagines how creators, communities and social engagement can launch assets and interact with tokens.A designdriven engineering culture where mobile UX matters as much as backend and protocol.Working with a small/highimpact mobile team where your contributions will be visible and valued.Exposure to global markets, social/mobile behaviour, communitydriven models and bleedingedge Web3/mobile interactions.An environment of rapid experimentation, mobile innovation and real user behaviour feedback.