Angga Wijaya

• Designed and Developed whole project from Telerik Kendo UI to ReactJs, .Net
Core.
• Coded software updates and alterations based on detailed design
specifications.
• Liaised with back end developers, front end developers, quality assurance
testers, and CTO as needed.
• Improved and optimized in websites UI for seamless customer experience.
• Operated in an Agile environment in an efficient manner to achieve 100% of
project goals within or before stated deadlines.

• Led the full-stack migration of the HRMS platform from Telerik Kendo UI to React.js and .NET Core, improving system
modularity and boosting frontend rendering speed by 35%.
• Architected and implemented core feature enhancements for high-traffic modules, translating complex specifications into
scalable code that reduced server-side processing time by 20%.
• Collaborated cross-functionally with QA teams and the CTO to align technical deliverables, ensuring 100% feature
alignment with the product roadmap and reducing post-release bugs by 15%.
• Optimized web UI/UX components and state management, resulting in a 30% faster time-to-interactive and a more seamless
experience for 200 internal users.
• Executed development in an Agile environment, consistently achieving 100% of project milestones and delivering critical
features 2 weeks ahead of schedule for major quarterly releases.

• Engineered and optimized P-Insyst, a high-availability IoT monitoring solution for Pertamina; implemented real-time data
synchronization for fuel tank levels and nozzle telemetry, achieving 100% data integrity and end-to-end transaction accuracy.
• Architected core functionalities for a high-precision sales dashboard, enabling real-time monitoring of nozzle status and fuel
discharge volumes with low-latency data processing to support critical operational decision-making.
• Leveraged Agile/Scrum methodologies to orchestrate the software development life cycle (SDLC), streaming feature delivery
pipelines and significantly increasing team velocity while ensuring 100% on-time deployment for enterprise-grade features.

• Developed and enhanced custom internal web applications using ASP.NET Core, Angular Js, SQL Server.
• Analyzed requirements and implemented new functionalities to meet evolving business needs.
• Implemented REST APIs and optimized application performance.
• Conducted code reviews and system optimization, reducing operational costs by 15%.
• Assisted in preparing technical documentation and application specifications.
• Prepared technical documentation and supported UAT activities.

• Architected and led the migration of legacy monoliths to a microservices-based platform using ASP.NET Core on IIS, while
simultaneously refactoring backend systems to reduce technical debt by 40% and eliminating 6-hour maintenance windows
through high-availability rolling deployments.
• Designed and implemented scalable enterprise applications using ASP.NET and Angular, managing complex data
migrations between SQL Server and Oracle to ensure high availability and data integrity.
• Designed APIs and data access layer (EF Core, Dapper) that decreased average API response time by 42% and reduced
DB CPU utilization by 28% through query optimization and caching with Redis.
• Mentored 4 junior developers; instituted bi-weekly architecture reviews and .NET coding standards, resulting in a 35%
reduction in production defects and improved team velocity over 12 months.
• Optimized cross-platform system integration and stability, achieving a highly resilient architecture that maintained 99.9%
uptime across production environments.
• Enhanced User Interface (UI) by re-engineering navigation menus to be more intuitive, contributing to a 5% increase in
sales through improved user journey and engagement.
• Authored comprehensive technical documentation and collaborated across departments to lead system enhancements,
ensuring seamless knowledge transfer and cross-functional alignment.

• Led system analysis, application development, and production support for multiple enterprise systems
• Designed scalable applications using ASP.NET, C#, Kendo, Angular Js, SQL Server, Oracle
• Mentored junior developers, conducted design and code reviews
• Ensured system integration, stability, and performance across platforms
• Improved user interfaces by updating menus to be more intuitive, increasing sales by 5%
• Refactored legacy backend systems, reducing technical debt by 40%
• Fine-tuned SQL Server performance, increasing data processing efficiency by 20%
• Prepared technical documentation and supported system enhancements across departments.