Johnny Xu

Experience

• 

  China Telecom Corporation Limited

  Nov 2015 - Feb 2016

  Intern
• 

  Optus

  Apr 2017 - Nov 2022

  • Developed APIs to expose network platform capabilities, integrated platforms with business for customer-driven products, and streamlined web applications for automation.• Collaborated with cross-functional teams across business units to execute platform integrations, delivering innovative products (including Optus Pause, Mobile Turbocharge, Network Pulse which are all available via My Optus app) that enhanced the customer experience and set new standards for excellence.• Implemented reliable solutions to automate repetitive tasks, leading to significant time and cost savings. Show less

  • Senior Software Engineer

    Jul 2021 - Nov 2022

  • Software Engineer

    Apr 2019 - Jul 2021

  • Graduate Program

    Apr 2017 - Mar 2019
• 

  Freely

  Nov 2022 - Nov 2023

  Senior Backend Engineer

  • Developed Nodejs applications on AWS for web and mobile apps, focusing on backend functionalities.• Designed data models and integrated APIs to support seamless user experiences.• Collaborated with cross-functional teams to ensure efficient project delivery and implementation.

• 

  PressPay

  Jan 2024 - now

  Senior Software Engineer

  • Design and implement system architecture for PressPay, focusing on full stack development and data engineering, based on AWS serverless technologies.• Develop applications by adopting micro-services and event-driven architectures to achieve high system scalability and performance.• Develop a data lakehouse to enable advanced analytics and unlock valuable business insights.• Leverage Infrastructure as Code (IaC) principles to automate deployment processes and improve system reliability. Show less