- Built the first fetch pet marketplace app using React Native, Laravel, MySQL database. To reduce ads loading time and pet media quality, create new recycled list view using React Native bridge.
- Real time post updates feature with Firebase real time database.
- Live text chat, voice and video call on the WebRTC technology, Firebase real time database, push notification system.
- PayPal, Stripe, Skrill, Bank payment integration, and then cash pick up.
- Provided improvement ideas and beautiful design ideas for more user friendly product.

Technologies: TypeScript, React Native, Laravel, NodeJS, WebRTC, MySQL, Firebase real time database.

- Collaborated with teams to increase unit tests coverage from 50% to 80% to strengthen app reliability.
- Drove adoption of micro-frontend by breaking out of existing monolithic structures and raising awareness through evangelization and documentation.
- Resolved team’s tech debts, completed heavy tasks, and made positive contributions across teams.
- Applied consistent human-readable coding practices and 508 standards to provide better user accessibility.
- Provided regular support, training, and mentoring to fellow colleagues.

Technologies: JavaScript, React.js, Angular.js, Laravel, MySQL, MongoDB, PostgreSQL, gitlab/github CI/CD pipeline, Automated Testing, AWS, Agile project management (Jira, Trello, Tara.ai)

- Built social networks infrastructure like facebook.
- Finally improved old projects codebase quality by using turborepo.
- Restructured the daily closing routine to ensure all team members completed tasks on schedule.
- Incorporated feedback from customers and team members to streamline the social network conflict such as following, like, comments, share.

Technologies: PHP, CodeIgniter, WebScraping, React.js, Node.js, AWS lambda, EC2 Azure, MySQL

- Built four mobile radio streaming apps (Radio Host, Gdynia Radio…)
- Implemented new stream module using ExpoPlayer to improve audio quality and optimize data usage in background..
- To provide more user-friendly product, added auto start and sleep feature by specifying time
- Add visual board to show large amount of upcoming agenda and presenter with optimizing image quality fast.
- Implemented secure REST API collaborating with backend developer closely.
- Provided beautiful design ideas and advanced feature improvement.

Technologies: React Native, Flutter, Xamarin, Swagger, Jira

- Developed a dashboard for all the important metric reports using React and Node, MongoDB database to show key performance indicators, thus creating and analytical basis for decision making to increase overall performance.
- Worked with the development team of 20 members to create and integrate highly optimized solutions by following agile, test-driven development methodology.
- Introduced PayPal Braintree payment gateway for mobile application, boosting the payment ratio by 16%.
- Created automated personalized notifications for customers from past behavior & increased notification click rate by 15%.
- Awarded ‘Employee of the Month’ in January 2017 for introducing and developing new UI based customer engagement feature which leveraged 200% growth in engagement.

Technologies: Laravel, React.js, Node.js, AWS Lambda, MySQL, Jira