Senior Mobile Developer (iOS/Android)

Company Description
VinSmart Future (VSF) is the leading technology company within the Vingroup Corporation, formed by the merger of the group's entire technology ecosystem, including VinApp, VinIT, VinBigdata, and other tech units. As a core driver of Vingroup's future growth, VSF is at the forefront of technological development, with artificial intelligence (AI) as its foundation. With a talented team of nearly 4,000 local and international technology experts, VSF focuses on creating high-utility technologies that enhance lives and connect data, models, and infrastructure to unlock new possibilities.
Job Description
Develop, maintain, and optimize mobile applications, ensuring high performance, reliability, and an excellent user experience.
Design and implement high-quality, scalable, and maintainable code following MVVM/Clean Architecture.
Integrate and work with REST APIs, WebSocket, and real-time data flows.
Optimize application performance, including memory usage, CPU efficiency, battery consumption, ANR, and crash reduction.
Collaborate closely with Product, Backend, QA, and cross-functional teams throughout the development lifecycle to deliver high-quality products.
Participate in code reviews, mentor team members, and provide technical guidance.
Requirements iOS
Minimum 4+ years of experience in iOS development using Swift.
Proven experience building and maintaining large-scale production iOS applications.
Strong knowledge of iOS SDK, UIKit / SwiftUI, MVVM / Clean Architecture.
Solid understanding of performance optimization (memory, CPU, battery, crash handling).
Experience working with REST APIs, WebSocket, and real-time systems.
Strong understanding of iOS app lifecycle, concurrency, and networking.
Experience in code review, mentoring, and cross-team collaboration.
Android
At least 4 years of experience in Android application development using Kotlin.
Proven experience building and maintaining large-scale production applications.
Strong knowledge of Android SDK, Jetpack Components, Coroutines, and MVVM/Clean Architecture.
Experience optimizing application performance, including memory usage, CPU consumption, battery efficiency, ANR, and crash reduction.
Hands-on experience working with REST APIs, WebSocket, and real-time data flows.
Strong architectural thinking, problem-solving skills, and a proactive mindset.
Experience in code reviews, mentoring engineers, and collaborating effectively across teams.
Benefits
Flexible working hours and attendance policy (Work from Home on working Saturdays).
Attractive compensation and bonus packages, highly competitive in the market.
Exclusive employee benefits across the Group's ecosystem in accordance with company policies.
Opportunity to work on large-scale and strategic technology projects.
Professional technology environment with leading scientists, experts, and engineers from top technology companies in Vietnam and around the world.
Free access to learning platforms such as Udemy, Coursera, and O'Reilly; internal workshops; sponsorship for professional certifications; and exclusive mentoring programs from the Group and Company leadership team.
Full statutory insurance coverage in accordance with Vietnamese Labor Law (Social Insurance, Health Insurance, Unemployment Insurance), along with private healthcare insurance based on job grade and annual health check-ups at reputable hospitals and healthcare centers nationwide.
Participation in internal activities, team-building programs, and annual company events.
Location: Vincom Dong Khoi, District 1, HCMC.
Contact: Ms. Huyền
Zalo/Call: [protected info]
Mail: [protected info]
LinkedIn: [protected info]