Leong Chee Wei, Kelvin - Mobile Lead
A seasoned Mobile Lead with over 16 years of experience architecting, implementing, and managing software products across backend systems and mobile platforms (Native iOS, Android, Flutter). My journey from Java Developer to Mobile Lead has been defined by a passion for robust, scalable technology and empowering teams. I excel at setting technical direction, managing cross-functional and international teams (KL, China, Penang), and delivering complex apps to global markets, including China's unique ecosystem. I am driven by the challenge of turning business objectives into high-quality, user-centric applications and fostering environments where engineers grow and succeed.
Technical Expertise
A comprehensive toolkit built over 16+ years of solving real-world problems in mobile tech
Technical Leadership & Strategy
Defining architecture and technology roadmaps to align with business goals and ensure scalable, maintainable solutions.
Team Management & Development
Building, mentoring, and leading high-performing engineering teams across different locations and specializations.
Full-Cycle Project Delivery
Owning the entire app lifecycle from planning and development to store deployment and compliance.
Technologies & Platforms
Hands-on expertise with a wide array of modern mobile and backend technologies.
AI Agent Systems & Automation
Designing, building, and operating AI agent systems — from prompt engineering and tool orchestration to multi-agent delegation, memory architectures, and production deployment.
Professional Journey
From Developer to Lead — A path of growing responsibility in mobile architecture and team leadership
iOS Lead
DLHA Tech Sdn Bhd
Developed iOS application and managed end-to-end App Store submission process.
- Led solo migration of Flutter codebase to native SwiftUI with MVI architecture within 4 weeks, leveraging Claude AI for code generation, peer review, and refactoring — delivering ISO-standard compliant, maintainable iOS application.
Mobile Lead
TOGL Technology Sdn Bhd
Leading mobile strategy and teams for apps across Google, Apple, and China-specific app stores.
- Launched new e-commerce app 'RewardsLink' within 3 months.
- Reorganized and led Native iOS, Android, Flutter, and Mini Program teams for KL and China.
- Managed integrations with key Chinese third-party services (Alipay, ByteDance, NetEase, Engagelab, 凡泰小程序，数美, 七牛).
- Initiate daily and weekly task allocation, problem monitoring, practice and propose solutions that need improvement.
- Evaluate and select appropriate technologies, frameworks, and tools that will enhance app performance, maintainability, and scalability.
- Promote a collaborative environment where team members can share ideas, challenge each other constructively, and work towards common goals.
Mobile Lead
PG.Mall
Lead the mobile development for PGmall's consumer and seller applications.
- Revamped and developed the new PGmall Android app within 4 months.
- Built and trained an Android team from Ionic-based developers.
- Managed app deployments on Google Play, Apple App Store, and Huawei AppGallery.
- Evaluate and select appropriate technologies, frameworks, and tools that will enhance app performance, maintainability, and scalability.
- Promote a collaborative environment where team members can share ideas, challenge each other constructively, and work towards common goals.
Mobile Application Lead
Cooper Group Technology
Spearheaded mobile app development for financial and utility applications.
- Developed and launched multiple apps: FDXCap, Manzhaos, and Cooper Authy.
- Established team KPIs and managed end-to-end development processes.
- Reported directly to the CTO and coordinated all internal mobile projects.
Mobile Team Lead
Grace Generation Information Technology
Led iOS development for a suite of products including community, e-commerce, and internal platforms.
- Manage Android/iOS project development team, requirements analysis, database design, architecture design, interface design, schedule control, testing, etc.
- Negotiate development needs with other departments and formulate corresponding issues
- Research decompilation technology, hook program, to meet the specified requirements
- Program encryption research, prevent illegal users brushing, brush tasks, etc.
iOS Mobile Lead
Silverlake Mobility Ecosystem Technology
Led iOS development for a suite of products including community, social networking and internal platforms.
- Shipped 'Hi-Hive Community' app, published on the Apple App Store.
- Contributed to in-house mobile application development platform (S-MADP).
- Developed mission-critical systems for airline crew and insurance reporting.
Application Developer & Senior Application Developer
Financial Link Sdn Bhd
Led iOS development for a suite of products including community, e-commerce, and internal platforms.
- Six years of working experience mainly in web based web services engine, integration, controller & mobile application development.
- Participate in customer meetings on project status and design review.
- Participate in the development of product requirements and specification
- Facilitate risk analysis activities.
- Perform verification and validation testing of application software.
- Analytical Minded: able to think, observe data, remember and basing on these activities, resolve problem.
- Big-picture perception of a software: able to understand an impact for further enchantment or design on application flow.
- Teamwork: able to work with a team
- Multitasking: able to handle multiple project in time
- Time management: able to manage time and complete the task assigned
Featured Projects & Apps
A showcase of published applications delivered for global markets
RewardsLink
RewardsLink is an app described as a "revolutionary global reward social platform." It combines shopping, payment services, and community features into one ecosystem. It serves as the consumer-facing companion to the RewardsLink Business app (for merchants).
RewardsLink Business
RewardsLink Business is an app designed as a dedicated management tool for merchants who are part of the RewardsLink platform. Its core purpose is to help business owners streamline operations and make data-driven decisions through an intuitive interface.
Yippi
An entertainment-focused social messaging app with beauty camera features and secret messages.
PGMall & PGMall Seller
PGMall is a shopping app that positions itself as Malaysia's No.1 local online shopping platform. It operates as a two-sided marketplace, connecting a wide range of sellers with shoppers looking for diverse products.
Mobile Number Portability (MNP) - DiGi Malaysia
This process lets you take your existing number to a new network provider.
Get In Touch
Feel free to reach out for collaborations or just a friendly chat