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I am a full stack software engineer who thrives in dynamic, fast-paced environments. I bring adaptability, strong problem-solving skills, and a collaborative mindset to every project. My experience spans frontend, backend, and cloud-enabled services, with a track record of delivering features, improving performance, and ensuring reliable production systems through testing, monitoring, and incident resolution.…I am a full stack software engineer who thrives in dynamic, fast-paced environments. I bring adaptability, strong problem-solving skills, and a collaborative mindset to every project. My experience spans frontend, backend, and cloud-enabled services, with a track record of delivering features, improving performance, and ensuring reliable production systems through testing, monitoring, and incident resolution.

Sia Yi Heng

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I am a full stack software engineer who thrives in dynamic, fast-paced environments. I bring adaptability, strong problem-solving skills, and a collaborative mindset to every project. My experience spans frontend, backend, and cloud-enabled services, with a track record of delivering features, improving performance, and ensuring reliable production systems through testing, monitoring, and incident resolution.…I am a full stack software engineer who thrives in dynamic, fast-paced environments. I bring adaptability, strong problem-solving skills, and a collaborative mindset to every project. My experience spans frontend, backend, and cloud-enabled services, with a track record of delivering features, improving performance, and ensuring reliable production systems through testing, monitoring, and incident resolution.

Available to hire

I am a full stack software engineer who thrives in dynamic, fast-paced environments. I bring adaptability, strong problem-solving skills, and a collaborative mindset to every project.

My experience spans frontend, backend, and cloud-enabled services, with a track record of delivering features, improving performance, and ensuring reliable production systems through testing, monitoring, and incident resolution.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Japanese

Advanced

Work Experience

Full Stack Software Engineer at Keysight Technologies Malaysia Sdn. Bhd.

March 1, 2025 - Present

Delivered 3 production modules and enhanced 4 complex modules, improving system scalability and usability by 33-37%. Optimized Java Spring backend, Angular frontend, and SQL database performance, reducing memory usage by 25%. Implemented AWS CloudFront security, HTML-based content customization, PDF workflows, and email integrations, improving delivery reliability by 30%. Acted as DevOps gatekeeper for production incidents, resolving global scheduler time-zone issues. Completed 130+ Jira tickets, cutting cycle time by 33-37% and improving overall process TAT by 36% through automation.

Software Engineer Intern at Cyber Village Sdn. Bhd.

August 1, 2021 - January 31, 2022

Contributed to backend and frontend tasks during internship, gaining exposure to full-stack development and Agile practices.

Full Stack Software Engineer at ModeFair Sdn. Bhd.

April 1, 2023 - February 28, 2025

Optimized database queries and developed secure RESTful APIs, improving system response by 40% and data processing efficiency by 30%; enabled WhatsApp and email integrations. Resolved 150+ critical production issues and conducted 100+ code reviews, improving system stability and reducing downtime by 25%, while enhancing overall code quality.