(Senior) iOS Mobile Engineer

Location: Taipei City, Taiwan; hybrid

Company

An early-stage fintech company building a mobile-first investment platform for global markets.

What you will do

• Own the native iOS application and help define its architecture and technical direction using Swift and SwiftUI.
• Build investment, account, funding, portfolio, authentication, and session-management experiences.
• Design clear handling of transaction and account states, including accurate currencies, prices, percentages, timestamps, and data freshness.
• Work with backend engineers on APIs, data models, edge cases, and unreliable-network scenarios.
• Address application performance, stability, crash rates, mobile security risks, background execution, push notifications, and lifecycle concerns.
• Manage App Store releases, including review requirements, privacy considerations, entitlements, and release quality.

Requirements

• 6+ years of professional iOS development or equivalent depth of experience.
• Strong commercial experience building and maintaining native iOS applications.
• Excellent Swift knowledge and strong SwiftUI experience, with an understanding of when UIKit is appropriate.
• Solid understanding of iOS architecture, application lifecycle, platform capabilities, secure storage, biometrics, authentication, push notifications, background execution, code signing, and App Store distribution.
• Experience building applications where security, reliability, and data accuracy are important, together with strong debugging and performance-profiling skills.
• Good English communication skills and the ability to work directly with senior technical stakeholders.

Nice to have

• Experience in fintech, banking, brokerage, payments, investment, trading, order-management, portfolio, or financial-account applications.
• Experience with KYC or onboarding flows, financial and market-data products, or mobile application security.
• Experience with high-volume consumer applications, push notifications, widgets, background processing, or deeper iOS integrations.
• Experience working with international products or users across multiple markets.

Culture & Benefits

• Join at an early stage of product development as the platform moves toward production.
• Have direct influence on the mobile platform's architecture, product decisions, and engineering standards.
• Work in a fast-moving startup environment where requirements may not always be fully defined.
• Collaborate directly with backend engineers and senior technical stakeholders.