[자유양식]
1. Please introduce your backend development experience.
I have extensive experience in backend system development and optimization, particularly in handling high-traffic environments.
One of my notable experiences includes participating in the development of core APIs for a service handling millions of monthly users and tens of millions of monthly requests. I optimized data retrieval performance on a heavily trafficked main page by improving database queries and resolving bottlenecks under specific conditions.
Additionally, I have designed and implemented authentication and authorization features for large-scale infrastructure environments. This involved enhancing system security and effectively managing complex user permission structures.
These experiences have equipped me with the skills to design and operate stable, scalable systems in challenging environments.
2. Describe a problem you solved related to high-traffic systems and the results achieved.
Handling high traffic requires a focus on both performance optimization and system reliability.
In one project, I developed functionality for processing user-specific data in real-time. Since caching alone was insufficient, I combined real-time data queries with caching strategies to minimize performance bottlenecks. This involved identifying bottlenecks in database queries, analyzing execution plans, and optimizing query performance. As a result, I significantly improved data retrieval speed while maintaining system stability.
This experience demonstrated my ability to address the challenges of traffic handling and performance improvement effectively. It also reinforced my capability to deliver measurable performance enhancements while ensuring service stability.
3. Share an experience where you used algorithms and data structures to solve a problem.
I have frequently utilized algorithms and data structures to solve complex problems efficiently.
For example, in a project that involved analyzing user behavior to provide personalized data, I designed aggregation tables and sorting algorithms to meet intricate conditions. This enabled the system to deliver data quickly and accurately, even under diverse sorting criteria and constraints.
In another project, I implemented secure authentication and authorization systems using hashing algorithms. I also optimized data structures for efficient storage and retrieval, ensuring both performance and security. These experiences highlight my ability to tackle complex challenges by designing effective algorithms and optimizing data structures.
