Participate in building a gym management system for American customers with a development team from Poland (3 members). Collaborate with the BA/business side to create a technical plan/solution. Apply best practices for the project, including Agile methodologies, Continuous Integration/Continuous Deployment, database replication, S3 cloud storage, and mobile auto-deployment. Manage the team effectively. Work on development, unit testing, test case creation, and release for both web and mobile platforms using technologies such as NodeJS, Angular, React Native, AWS, and EC2. Create, develop, and release mobile apps for both iOS and Android platforms to their respective app stores. Develop key features including Stripe and PayPal integration, recurring payments, booking functionality, and payment reporting.

Participated in the E-commerce product development process for Malaysian customers. Developed both the back-end and front-end components of the project. Applied best practices, including Agile methodologies, CI/CD, and multi-service architecture. Created, developed, and tested the web application before releasing it to production using NestJS and React. Developed key features such as Order processing, Payment integration, Promo management, and Inventory systems.

Participated in the development process of mobile applications. Connected mobile applications to various types of printers. Developed and tested mobile applications using Angular, Ionic, Java, and Swift. Customized plugin code in both Java and Swift to ensure compatibility and performance.

Participate in the Cloud POS application development process connected with Shopify, BigCommerce, etc. Participate in creating, developing, unit testing, and releasing front-end web applications using Angular, Ionic, and React. Develop logic for the back-end using PHP. Create a Single Page Application (SPA) for shoppers.

Participated in developing sales management applications. Worked on both Back-end and front-end using NodeJS, React, and Firebase Cloud. Conducted unit testing for various components. Developed a salary and commission calculation feature for the application.

Participated in developing outsourcing projects for European and American customers across various businesses, including e-commerce, ordering, and delivery. Worked on both Back-end and Front-end (Web & Mobile) technologies. Utilized technologies such as .NET, NodeJS, Angular, React, React Native, and Ionic. Built an application from scratch independently.