- Revamped the current microservice system and achieved massive 60% improvement in reducing - development and maintenance costs.- Implemented automated pipelines using unit tests, end-to-end (E2E) tests, and performance tests, resulting in a 50% reduction in production downtimes.- Collaborated with other backend developers to document APIs, resulting in a streamlined onboarding process for new team members, reducing the expected duration from 20 to 14 days.

- Facilitated the hiring and onboarding of experienced developers onto the project, resulting in a 40% increase in productivity and expanding the team's capacity in collaboration with the co-founder and HR team.- Coordinated with project stakeholders to identify and document crucial changes and successfully managed project budgets to ensure timely delivery and optimize efficiency.

- Implemented a new item in the deployment pipeline to check API performance from the user perspective.- Actively tried to learn from senior developers and the manager to improve my work performance on the project.

- Cooperated with expert team to optimize app for registering statistics, resulting in a 50% increase in registered data and successful deployment of high-quality product.

- Worked closely with a cross-functional team to implement an optimized app flow, resulting in a 20% increase in efficiency for common tasks and significant time savings for users.