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Role Overview

Responsible for core native development of an overseas payment platform. Requires proficiency in Kotlin/Java, familiarity with hybrid architectures (Flutter/H5), and the ability to deliver superior performance, animations, and stability—providing global users with bank-level security and internet-level smoothness.

Key Responsibilitie

• sCore Native Development: Lead architecture design and core module implementation for overseas payment apps from 0 to 1
• .Ultimate Experience Optimization: Deeply involved in UI/UX implementation, delivering complex interactive animations, ensuring smooth 60fps performance even on mid- to low-end devices
• .Hybrid Architecture Expertise: Familiar with Flutter, proficient in secondary development of H5 containers (WebView), and capable of designing efficient and stable JSBridge communication mechanisms
• .Performance Optimization: Conduct memory optimization, startup speed improvements, package size reduction, and network acceleration for payment scenarios; resolve stuttering and memory leaks caused by hybrid development
• .Engineering Practices: Knowledge of automated build (CI/CD), strict code quality checks, crash monitoring, and online performance monitoring systems

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Requiremen

• tsTechnical Dept
• h:7+ years of Android development experience, proficient in Kotlin and Java, familiar with Android SDK and version difference
• s.Expertise in Android rendering mechanisms, event dispatch, custom Views, and advanced animation developmen
• t.Hybrid Development Experienc
• e:Familiar with Flutter and its underlying principles, with hands-on experience in optimizing hybrid projects (Native + Flutter / Native + H5
• ).Skilled in WebView performance tuning, able to handle complex H5 interaction compatibility issue
• s.Performance Expertis
• e:Proficient with tools such as Profiler and LeakCanary for issue diagnosis; deep understanding of multithreading and concurrent programmin
• g.Awareness of payment-grade product stability, with knowledge of encryption, secure storage, and related technologie
• s.Soft Skill
• s:Strong pursuit of user experience, able to proactively propose technical improvement
• s.Excellent communication skills, capable of close collaboration with product managers and UI designers to deliver pixel-perfect detail

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Preferred Qualificati

• onsFinancial Payment App Development Experien
• ce:Hands-on experience with sensitive data encryption (RSA/AES), secure keyboards, digital signatures, and biometric payme
• nt.Experience in international acquiring or e-wallet developme
• nt.Crypto/Web3 Industry Experien
• ce:Familiar with blockchain fundamentals, with experience in WalletConnect integration or private key secure storage preferr
• ed.Experience in WebSocket long connection optimizati
• on.Payment Performance Optimizati
• on:Experience in technical solutions for improving payment funnel conversion (e.g., extreme reduction of first-screen load time, seamless switching in critical payment path