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I’m a Full Stack Engineer with a strong background in building high-impact mobile and web applications for fast-moving companies. Over the past four years, I’ve led the design and deployment of the Blueberry app, streamlining order management for 500+ small businesses, integrated PayPal payments to drive 60% higher transaction volume, and managed Docker + AWS CI/CD pipelines to accelerate releases by 35%. Previously at uParcel, I engineered backend services with Java Spring Boot on AWS to support 1,000+ daily delivery requests, implemented Redis caching to improve API speed by 40%, and built a React logistics dashboard for real-time tracking. Earlier in my career at AEJOU and UIC, I developed Flutter IoT apps and React dashboards for smart micro-farming and HR systems, cutting manual processes by up to 40%. What sets me apart is my ability to bridge mobile, backend, and DevOps skills to deliver measurable improvements in performance, scalability, and user experience. I’m passionate about using technology to streamline operations, improve customer experiences, and scale businesses sustainably.…I’m a Full Stack Engineer with a strong background in building high-impact mobile and web applications for fast-moving companies. Over the past four years, I’ve led the design and deployment of the Blueberry app, streamlining order management for 500+ small businesses, integrated PayPal payments to drive 60% higher transaction volume, and managed Docker + AWS CI/CD pipelines to accelerate releases by 35%. Previously at uParcel, I engineered backend services with Java Spring Boot on AWS to support 1,000+ daily delivery requests, implemented Redis caching to improve API speed by 40%, and built a React logistics dashboard for real-time tracking. Earlier in my career at AEJOU and UIC, I developed Flutter IoT apps and React dashboards for smart micro-farming and HR systems, cutting manual processes by up to 40%. What sets me apart is my ability to bridge mobile, backend, and DevOps skills to deliver measurable improvements in performance, scalability, and user experience. I’m passionate about using technology to streamline operations, improve customer experiences, and scale businesses sustainably.

Ang Quan Xing

Developer, App Developer, Full Stack Developer

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I’m a Full Stack Engineer with a strong background in building high-impact mobile and web applications for fast-moving companies. Over the past four years, I’ve led the design and deployment of the Blueberry app, streamlining order management for 500+ small businesses, integrated PayPal payments to drive 60% higher transaction volume, and managed Docker + AWS CI/CD pipelines to accelerate releases by 35%. Previously at uParcel, I engineered backend services with Java Spring Boot on AWS to support 1,000+ daily delivery requests, implemented Redis caching to improve API speed by 40%, and built a React logistics dashboard for real-time tracking. Earlier in my career at AEJOU and UIC, I developed Flutter IoT apps and React dashboards for smart micro-farming and HR systems, cutting manual processes by up to 40%. What sets me apart is my ability to bridge mobile, backend, and DevOps skills to deliver measurable improvements in performance, scalability, and user experience. I’m passionate about using technology to streamline operations, improve customer experiences, and scale businesses sustainably.…I’m a Full Stack Engineer with a strong background in building high-impact mobile and web applications for fast-moving companies. Over the past four years, I’ve led the design and deployment of the Blueberry app, streamlining order management for 500+ small businesses, integrated PayPal payments to drive 60% higher transaction volume, and managed Docker + AWS CI/CD pipelines to accelerate releases by 35%. Previously at uParcel, I engineered backend services with Java Spring Boot on AWS to support 1,000+ daily delivery requests, implemented Redis caching to improve API speed by 40%, and built a React logistics dashboard for real-time tracking. Earlier in my career at AEJOU and UIC, I developed Flutter IoT apps and React dashboards for smart micro-farming and HR systems, cutting manual processes by up to 40%. What sets me apart is my ability to bridge mobile, backend, and DevOps skills to deliver measurable improvements in performance, scalability, and user experience. I’m passionate about using technology to streamline operations, improve customer experiences, and scale businesses sustainably.

Available to hire

I’m a Full Stack Engineer with a strong background in building high-impact mobile and web applications for fast-moving companies. Over the past four years, I’ve led the design and deployment of the Blueberry app, streamlining order management for 500+ small businesses, integrated PayPal payments to drive 60% higher transaction volume, and managed Docker + AWS CI/CD pipelines to accelerate releases by 35%.

Previously at uParcel, I engineered backend services with Java Spring Boot on AWS to support 1,000+ daily delivery requests, implemented Redis caching to improve API speed by 40%, and built a React logistics dashboard for real-time tracking. Earlier in my career at AEJOU and UIC, I developed Flutter IoT apps and React dashboards for smart micro-farming and HR systems, cutting manual processes by up to 40%.

What sets me apart is my ability to bridge mobile, backend, and DevOps skills to deliver measurable improvements in performance, scalability, and user experience. I’m passionate about using technology to streamline operations, improve customer experiences, and scale businesses sustainably.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Javanese

Advanced

Work Experience

Software Engineer at Blueberry CO

July 1, 2024 - September 12, 2025

Led the design and deployment of the Flutter Blueberry app, increasing order processing efficiency by 40% for over 500 small businesses. Integrated PayPal payment processing, driving a 60% growth in transaction volume and onboarding 250+ new users within three months. Managed CI/CD pipelines with Docker and AWS, accelerating feature release cycles by 35% and ensuring less downtime deployments.

Full Stack Engineer at uParcel – Same Day Delivery Tech

April 1, 2024 - September 12, 2025

Engineered and deployed backend services using Java (Spring Boot) on AWS, reducing delivery assignment latency by 30% and supporting over 1,000 daily delivery requests. Dockerized Spring Boot application and Redis caching, cutting deployment times by 50% and improving API response speed by 40%. Built and launched a React-based logistics dashboard with Test-Driven Development (TDD), enabling real-time tracking for 100+ delivery drivers and enhancing operational visibility.

Software Engineer at AEJOU PTE LTD

August 1, 2023 - September 12, 2025

Developed and optimized cross-platform mobile applications using Flutter, integrating smart IoT features to support over 50 connected devices with 90% uptime. Integrated cross-platform Bluetooth functionality using Flutter plugins and platform channels, enabling seamless wireless communication with IoT devices, reducing pairing latency by 50% and improving overall connection reliability. Built a React admin dashboard, enabling real-time monitoring and management of IoT devices, and reducing manual configuration time by 40%.

Full Stack Engineer at UIC Asian Computer Services PTE LTD

August 1, 2021 - September 12, 2025

Revamped HR systems using Java (Spring Boot), reducing manual processing time by 25% and improving employee self-service satisfaction scores by 15%. Developed and deployed mobile applications with Flutter, increasing user accessibility and adoption rate by 35% across internal staff. Integrated Kafka for real-time log streaming and data tracking, enabling faster issue detection and reducing incident resolution time by 20%.