Developed backend systems for an employee work scheduling website. Implemented APIs to visualize work schedules, vacations, daily and hourly staffing levels. Optimized work schedules by analyzing data for overstaffed and understaffed time slots, enabling efficient scheduling for the following month. Collaborated with front-end developers and project managers to ensure effective work scheduling solutions.

Developed backend systems for a mobile app to assist warehouse employees in inventory management. Implemented barcode scanning functionality to retrieve product information and compare order quantities with received quantities. Ensured real-time data synchronization and accuracy for efficient inventory verification. Collaborated with mobile developers and warehouse managers to provide seamless inventory management solutions.

Developed backend systems for a digital marketing platform to collect and manage user campaign data. Implemented APIs to gather user information and campaign details, providing insights for optimizing marketing strategies. Synchronized data from Salesforce, implemented Lambda functions and optimized performance with caching and query tuning.

Developed a personal project to create a small social media website for sharing photos and interacting with others. Implemented user authentication, profile management, photo uploading, and commenting features.

Developed and maintained backend systems for a health declaration and data management website for employees. Designed and implemented secure and efficient databases, and integrated APIs to support frontend functionalities. Ensured data security and compliance with regulations. Collaborated with front-end developers and stakeholders to deliver robust health management solutions.

Developed backend systems for a website to manage all employee Android devices in the company. Implemented APIs to sync settings between the website and mobile app, allowing management to restrict access to certain apps and disable camera functionality across all apps on employee devices. Ensured secure and efficient communication between the website and mobile devices. Collaborated with mobile developers and IT administrators to provide comprehensive device management solutions.

Designed and developed APIs to manage inventory, handle customer orders.

Collaborated with front-end developers and supply chain managers to deliver effective cost management solutions.

Synchronized data from data files on AWS S3 and optimized performance with caching and query tuning.