Responsibilities: * Work with the scrum team to ensure that the solution is properly delivered as per expected. * Guarantee the quality of the source code, for all developments under your responsibility. * Perform unit testing, and contributes to integration testing, functional testing and UAT. * Contribute to improve Norms and Processes, and development techniques. * Perform troubleshooting and resolving of production issues. * Mentor and coach team members. * Do knowledge sharing among the team from time to time. * Documenting required document for further knowledge sharing.   Qualifications: * Bachelor’s degree in Computer Science, Information Technology or equivalent. * Having 1-7 years of hands-on experience developing and implementing mobile applications * Experience in mobile web development using React Native * Familiar with HTML/CSS/JavaScript * Knowledge and/or experience in Android / iOS development * Good understanding of UI/UX concepts for mobile devices. * Familiar with publishing of beta app through TestFlight / HockeyApp. * Experience in local testing using Maestro, Appium for native app testing tools. * Experience in developing applications for the financial markets and brokerage operations is a plus. * Good command of English * Familiar with Agile methodology * Willing to become full-stack developer in the future   What you will get from ATA IT : * 14 days’ vacation in first year * Health insurance for staff & families * Life insurance  * Dental fee for staff & families * Provident fund * Monetary Assistance (Childbirth, Funeral, Basket Visit) * Annual Party * Monthly Activities- Staff Birthday & Company Activities * Annual Health Check * Multi-national company with flexible working hours, but professional company culture * Hybrid Work from Home Policy