Hi, I'm Grayson Yang, a senior software engineer with over 10 years of experience building high-performance web applications. I specialize in both frontend and backend development and enjoy working with cutting-edge technologies like React, Python, and AWS. I’m passionate about creating seamless user experiences and scalable, efficient backend systems. I’ve been fortunate to lead projects that significantly improve user engagement and system performance, and I thrive in Agile environments where collaboration and continuous improvement are key. When I’m not coding, I enjoy mentoring teams and refining processes to boost productivity and quality.

Grayson Yang

Hi, I'm Grayson Yang, a senior software engineer with over 10 years of experience building high-performance web applications. I specialize in both frontend and backend development and enjoy working with cutting-edge technologies like React, Python, and AWS. I’m passionate about creating seamless user experiences and scalable, efficient backend systems. I’ve been fortunate to lead projects that significantly improve user engagement and system performance, and I thrive in Agile environments where collaboration and continuous improvement are key. When I’m not coding, I enjoy mentoring teams and refining processes to boost productivity and quality.

Available to hire

Hi, I’m Grayson Yang, a senior software engineer with over 10 years of experience building high-performance web applications. I specialize in both frontend and backend development and enjoy working with cutting-edge technologies like React, Python, and AWS. I’m passionate about creating seamless user experiences and scalable, efficient backend systems.

I’ve been fortunate to lead projects that significantly improve user engagement and system performance, and I thrive in Agile environments where collaboration and continuous improvement are key. When I’m not coding, I enjoy mentoring teams and refining processes to boost productivity and quality.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

English
Fluent

Work Experience

Senior Software Engineer at Funsize
June 7, 2022 - April 30, 2025
Led the development of dynamic, user-friendly web applications with React.js, Next.js, and Firebase, engaging 10000+ daily users and improving user retention by 15% through optimized performance and UX. Designed and implemented backend solutions with Python, creating highly efficient data processing and batch jobs that reduced processing time by 40% and improved overall system speed and scalability. Architected and maintained AWS infrastructure (EC2, S3, Lambda), ensuring 99.9% uptime during high traffic times, supporting seamless user experiences during maximum user load. Built real-time features using Python and Firebase, enabling instant data updates and secure authentication, which improved session time by 25% and boosted overall user engagement. Automated data syncing between internal services and external APIs using Python scripts, reducing manual data entry errors and improving system integration speed by 30%. Developed robust background tasks with Python, streamlining asynchronous operations and improving backend efficiency by 40%. Worked closely with design teams to create mobile-first, ADA-compliant interfaces, driving a 20% increase in user retention and improving accessibility for users with disabilities. Conducted code reviews and led mentoring sessions, fostering a collaborative environment that resulted in a 25% increase in team productivity and consistent delivery of high-quality solutions.
Senior Web Developer at Pivofy
May 31, 2022 - July 22, 2025
Developed and deployed scalable eCommerce platforms with React.js, Ruby on Rails, and PHP, handling over $500K in monthly sales. Leveraged Python for developing microservices that improved system performance by 25%. Led migration from monolithic systems to microservices using Docker, AWS Lambda, and Python, reducing release cycles by 60%. Built automated CI/CD pipelines with AWS CodePipeline and GitHub Actions, decreasing manual errors and downtime by 40%. Developed comprehensive testing frameworks to automate testing and monitoring, cutting manual efforts by 40%. Collaborated closely with cross-functional teams to deliver features with a 98% on-time success rate. Integrated third-party systems, enhancing cross-platform data synchronization by 30%. Optimized platform scalability and performance, improving load times by 20% and increasing user satisfaction.
Senior Full-Stack Developer at Zibtek
March 31, 2019 - July 22, 2025
Built data-driven dashboards using React, Next.js, and Express.js, improving operational efficiency by 25%. Developed scalable backend services and RESTful APIs managing over 1M monthly requests with minimal downtime using Node.js, PHP, and .NET Core. Created modular frontend libraries in TypeScript and JavaScript, reducing time to market by 20%. Optimized CI/CD pipelines with GitLab and Jenkins, increasing test coverage by 35% and reducing production errors. Integrated microservices architecture to enhance backend scalability. Worked with cross-functional teams to deliver high-quality features, achieving a 95% sprint goal completion. Developed custom analytics tools that boosted team efficiency by 30%.
Front-End Developer at DockYard
September 29, 2016 - July 21, 2025
Built responsive and interactive UIs in React, Angular, and Vue.js for fintech and healthcare platforms, improving user engagement for 50,000+ users. Integrated backend APIs in Elixir and Ruby on Rails, optimizing page load times by 25%. Designed scalable, reusable component libraries in Angular and Ember.js, reducing development time for new features by 20%. Developed and maintained automated frontend testing frameworks, reducing regression bugs by 30%. Optimized frontend performance for mobile and desktop platforms, reducing load times by 15%.
Senior Software Engineer at Funsize
April 30, 2025 - July 22, 2025
Led development of user-friendly web applications using React.js, Next.js, and Firebase engaging over 10,000 daily users and improving retention by 15%. Designed backend solutions with Python that improved processing speed by 40%. Architected and maintained AWS infrastructure ensuring 99.9% uptime during peak traffic. Built real-time features enhancing session time by 25%. Automated data syncing, reducing errors by 30%. Mentored team members, increasing productivity by 25% while driving mobile-first, ADA-compliant UI improvements.
Senior Web Developer at Pivofy
May 31, 2022 - July 22, 2025
Developed scalable eCommerce platforms with React.js, Ruby on Rails, and PHP achieving over $500K in monthly sales. Created Python microservices enhancing authentication and order management, improving response times by 25%. Led migration to microservices using Docker and AWS Lambda, reducing release cycles by 60%. Built automated CI/CD pipelines reducing downtime by 40%. Implemented third-party integrations improving cross-platform data sync by 30%, and optimized platform performance increasing load speed and user satisfaction.
Senior Full-Stack Developer at Zibtek
March 31, 2019 - July 22, 2025
Built data-driven dashboards using React, Next.js, and Express.js improving operational efficiency by 25%. Developed scalable backend services and RESTful APIs managing over 1M monthly requests. Created modular frontend libraries boosting time to market by 20%. Optimized CI/CD pipelines increasing test coverage by 35% and reducing errors. Integrated microservices architecture improving backend scalability, and developed analytics tools that enhanced team efficiency by 30%.
Front-End Developer at DockYard
September 30, 2016 - July 22, 2025
Built responsive and interactive UIs in React, Angular, and Vue.js for fintech and healthcare platforms serving 50,000+ users. Integrated backend APIs to optimize load times by 25%. Designed reusable component libraries and automated frontend testing frameworks reducing development time and regression bugs. Enhanced front-end performance across mobile and desktop platforms.
Senior Software Engineer at Funsize
April 30, 2025 - July 22, 2025
Led the development of dynamic, user-friendly web applications with React.js, Next.js, and Firebase, engaging 10,000+ daily users and improving user retention by 15% through optimized performance and UX. Designed and implemented backend solutions with Python, creating efficient data processing and batch jobs that reduced processing time by 40%. Architected and maintained AWS infrastructure ensuring 99.9% uptime during high traffic times. Built real-time features using Python and Firebase, boosting session time by 25%. Automated data syncing between services and external APIs with Python scripts, improving system integration speed by 30%. Developed robust background tasks enhancing backend efficiency by 40%. Collaborated on mobile-first, ADA-compliant interfaces, increasing user retention by 20%. Conducted code reviews and mentoring, boosting team productivity by 25%.
Senior Web Developer at Pivofy
May 31, 2022 - July 22, 2025
Developed and deployed scalable eCommerce platforms with React.js, Ruby on Rails, and PHP, managing over $500K in monthly sales. Leveraged Python microservices for authentication, order management, and data processing, improving system performance by 25%. Led migration from monolithic legacy systems to microservices using Docker, AWS Lambda, and Python, reducing release cycle times by 60%. Built and maintained automated CI/CD pipelines with AWS CodePipeline and GitHub Actions, reducing errors and downtime by 40%. Developed automated testing frameworks with Python, cutting manual work by 40%. Integrated third-party payment gateways and CRM systems improving cross-platform data synchronization by 30%. Optimized platform scalability and performance boosting load times by 20%.
Senior Full-Stack Developer at Zibtek
March 31, 2019 - July 22, 2025
Built data-driven dashboards using React, Next.js, and Express.js improving operational efficiency by 25%. Developed scalable backend services and RESTful APIs in Node.js, PHP, and .NET Core handling over 1M monthly requests. Created modular frontend libraries in TypeScript and JavaScript reducing time to market for new features by 20%. Optimized CI/CD pipelines with GitLab and Jenkins, increasing test coverage by 35%. Integrated microservices architecture improving backend flexibility and scalability. Delivered high-quality features with 95% sprint goal completion. Developed custom analytics tools to track application performance, improving team efficiency by 30%.
Front-End Developer at DockYard
September 30, 2016 - July 22, 2025
Built responsive and interactive UIs in React, Angular, and Vue.js for fintech and healthcare platforms serving 50,000+ users. Integrated backend APIs in Elixir and Ruby on Rails, optimizing page load times by 25%. Designed scalable, reusable component libraries in Angular and Ember.js reducing development time by 20%. Developed and maintained automated testing frameworks reducing regression bugs by 30%. Optimized front-end performance for mobile and desktop platforms reducing load times by 15%.
Senior Software Engineer at Funsize
April 30, 2025 - July 25, 2025
Led the development of dynamic, user-friendly web applications with React.js, Next.js, and Firebase, engaging 10,000+ daily users and improving user retention by 15%. Designed and implemented backend solutions with Python, reducing processing time by 40%. Architected and maintained AWS infrastructure ensuring 99.9% uptime during high traffic. Built real-time features using Python and Firebase, boosting user engagement by 25%. Automated data syncing between internal services and external APIs, improving integration speed by 30%. Developed robust background tasks, increasing backend efficiency by 40%. Worked closely with design teams to create mobile-first, ADA-compliant interfaces, driving a 20% increase in user retention. Conducted code reviews and led mentoring sessions, raising team productivity by 25%.
Senior Web Developer at Pivofy
May 31, 2022 - July 25, 2025
Developed and deployed scalable eCommerce platforms with React.js, Ruby on Rails, and PHP, processing $500K+ in monthly sales. Used Python to develop microservices improving system response times by 25%. Led migration from monolithic legacy systems to microservices using Docker, AWS Lambda, and Python, reducing release cycle times by 60%. Built and maintained automated CI/CD pipelines, cutting errors and downtime by 40%. Developed testing frameworks automating testing and data migration, reducing manual work by 40%. Implemented third-party integrations enhancing cross-platform synchronization by 30%. Optimized platform scalability and performance, improving load times by 20% and user satisfaction.
Senior Full-Stack Developer at Zibtek
March 31, 2019 - July 25, 2025
Built data-driven dashboards with React, Next.js, and Express.js, enhancing operational efficiency by 25%. Developed scalable backend services and RESTful APIs handling over 1M monthly requests. Created modular frontend libraries using TypeScript and JavaScript, reducing time to market by 20%. Optimized CI/CD pipelines with GitLab and Jenkins, increasing test coverage by 35%. Integrated microservices architecture for backend scalability. Collaborated with cross-functional teams achieving 95% sprint goal completion. Developed custom analytics tools improving team efficiency by 30%.
Front-End Developer at DockYard
September 30, 2016 - July 25, 2025
Built responsive and interactive UIs using React, Angular, and Vue.js for fintech and healthcare platforms serving 50,000+ users. Integrated backend APIs built with Elixir and Ruby on Rails, optimizing frontend performance and page load times by 25%. Designed reusable component libraries in Angular and Ember.js, cutting development time for new features by 20%. Developed and maintained automated testing frameworks reducing regression bugs by 30%. Enhanced front-end performance for mobile and desktop, reducing load times by 15%.

Education

Bachelor of Science at National University of Singapore
September 1, 2010 - August 31, 2014
Bachelor of Science at National University of Singapore
September 1, 2010 - August 31, 2014
Bachelor of Science at National University of Singapore
September 1, 2010 - August 31, 2014
Bachelor of Science at National University of Singapore
September 1, 2010 - August 31, 2014

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services, Healthcare, Retail, Media & Entertainment