Middle iOS Engineer

We are seeking a Middle iOS Engineer in Vietnam to follow iOS architecture standards and ship secure, high-quality apps at scale. You will build and test across simulators and devices, help improve performance and reliability, and contribute to cross-team initiatives. You will partner with global teams to deliver modern iOS experiences in a fast-paced Agile setup.

Responsibilities

Implement iOS features across modules, data flow and dependency boundaries in line with established architecture Contribute to initiatives including offline sync, payments, accessibility, security and performance improvements Follow platform standards for coding conventions, linting, testing strategy and release practices Support observability by instrumenting metrics and crash analytics, and help investigate incidents to reduce risk Participate in code and design reviews, and share knowledge with peers Collaborate with Back-end, Data and Product teams on platform-wide technical concerns Apply privacy, data retention, encryption and permissions requirements for compliant delivery Requirements Solid Swift proficiency including async/await, concurrency patterns and production-ready application design Working knowledge of architecture patterns such as MVVM, The Composable Architecture (TCA) or Clean Architecture Understanding of iOS runtime and performance, including memory behavior and Instruments profiling Familiarity with security and privacy practices including Keychain, Secure Enclave, encrypted storage and transport security Experience shipping stable iOS applications with moderately complex user flows Ability to follow and help maintain standards for testing, releases and long-term maintainability Experience contributing to cross-team initiatives from design through rollout Nice to have Exposure to Swift macros, custom tooling or build system improvements Open-source contributions or participation in developer communities Experience working on multi-squad technical programs