Sean Yudhistira

• Developed and maintained a RESTful API, enabling secure and efficient data transfer between front-end and back-end systems, optimizing performance and security.
• Refactored existing codebase by implementing caching layers, reducing database query costs and improving overall system scalability.
• Collaborated with product teams to align project timelines and engineering efforts, ensuring smooth coordination and on-time delivery.

At PT. SINBAD KARYA PERDAGANGAN, responsibility was held as a Back End Engineer for the Supplier Squad, which oversees multiple Sinbad products. Key contributions include:

• Deputy Tech Lead: Assisted tech leads by coordinating with the squad, mentoring junior developers, and facilitating communication with external teams during their absence or busy periods.
• Code Refactoring: Improved the reliability, scalability, and maintainability of legacy code through structured refactoring.
• Database Optimization: Enhanced application performance by optimizing database queries, resulting in a 20% reduction in response times.
• Unit Test: Implemented unit test, increasing code coverage to 80% and reducing production issues by 20%.
• API Development: Developed a RESTful API with response times consistently under 100 milliseconds.

During my full year working at PT Pegadaian, the things that my team and I have achieved are as follows,

• Hand over Back end mobile application from vendor (using PHP programin language CI framework)
• Deliver Fixing Major Bugs product GOD(Pawn on Demand Step 1) (using PHP programing language CI framework)
• Deliver Mega project GOLD CARD(Pegadaian Credit Card). (Using go programing language)
• Refactored legacy code to improve reliability, scalability and maintainability

• Developed an agile software development methodology with a focus on iterative delivery and continuous improvement
• Conducted code reviews and mentored junior developers to improve code quality and ensure adherence to best practices
• Resolved conflicts between team members, creating a positive working environment
• Conducted regular meetings and provided feedback to enhance team productivity and motivation

As long as I work at Bhinneka.com I have responsibilities in maintaining applications, creating new modules, integrating with vendors or other modules, teaching clients about new modules that have been created, and solving user problems with incorrect input or system errors. caused by bugs, or human error.

In this Projects i use Navision programing language, which is similar with .Net

• Configured an ERP system with custom settings and parameters to meet business requirements
• Assisted in the selection and implementation of a new ERP system that improved business processes