Tom Yuan
Personal Statement
I am a software engineer with 14+ years of experience, driven by a deep passion for writing elegant, maintainable, and efficient code. To me, programming is more than just a profession—it is an art form. I believe that well-crafted code should be as refined as a beautifully designed product: simple, expressive, and powerful.
As a polyglot developer, I have worked across a wide range of programming languages, from my early days with Shell, C++, and Python, to Java, Ruby, PHP, Go, JavaScript, TypeScript, Kotlin, Swift, Dart, and GDScript, and now exploring C#. I am constantly learning, always seeking new ways to expand my skill set and adapt to different technological landscapes.
In my daily development workflow, I leverage AI tools alongside traditional programming practices. While I find AI invaluable for accelerating development, I still engage in manual coding when AI-generated solutions become overly verbose or lack extensibility. Beyond coding assistance, I have built custom agents to streamline my work and personal productivity—including task management and calendar integration systems that connect various third-party services, similar to a simplified version of modern multi-agent platforms like Moltbot.
Looking ahead, I aim to continue refining my craft, embracing new challenges, and finding more ways to connect technology with creativity.
Education
Work Experience
- Developed GraphQL API for the Kindred mobile app.
- Integrated third-party services (Stripe, Sendbird, Twilio, Postmark).
- Built a notification framework to enhance user connections.
- Established a monorepo architecture for streamlined development.
- Redesigned CI/CD pipelines to improve deployment efficiency.
- Created a new app generator for rapid project setup.
Skills:
- TypeScript
- GraphQL/Apollo
- NestJS
- Prisma
- PostgreSQL
- React Native
- GitHub Actions
- Docker
- Datadog
- AWS
- Terraform
- CI/CD
- Developed Telematics features to boost user engagement through driving score rankings and social sharing.
- Built the React Native frontend with complex charts, animations, and forms.
- Designed and implemented the GraphQL backend using NestJS, Apollo, and TypeORM, supporting friend relationships and feed management.
Skills:
- TypeScript
- React Native
- GraphQL/Apollo
- NestJS
- TypeORM
- PostgreSQL
- Developed a dish recommendation system by matching user tags with dish data, improving ordering efficiency and payment conversion.
- Built a user portrait platform, unifying multi-dimensional data management and providing key insights for business operations.
- Designed a Spark-based data import and filtering framework, enabling large-scale user profiling.
- Developed a high-performance serialization library, improving compression by 40% and deserialization speed by 7.39x.
- Built a bitmap-based filtering service (Bitcube), reducing query time for 100M users from 1.7 hours to 4 minutes.
- Implemented routing + local caching, boosting profile query performance by 2.5x (24K QPS per machine).
Skills:
- Java
- Spring IoC
- MySQL
- Redis
- Kafka
- Spark
- Flink
- Elasticsearch
- Thrift
- Designed and implemented Order Details as a Service, enabling efficient order query and logical assembly.
- Developed a DAG framework, enhancing scalability, testability, and performance in complex data assembly.
- Built an Order Data Synchronization Platform for heterogeneous storage synchronization with flexible task configuration.
- Developed a web-based job configuration system, supporting incremental & full synchronization and reducing development time from 2 person-days to 0.5 person-day.
Skills:
- Java
- Spring IoC
- MySQL
- Redis
- Kafka
- Hadoop
- Elasticsearch
- Dubbo
- Developed the TongDun Anti-Fraud Engine, enabling multi-tenant rule configuration and risk assessment across industries like finance, e-commerce, social networking, and gaming.
- Built a distributed logging platform with a custom Java-based Logstash alternative, leveraging ELK (Elasticsearch, Logstash, Kibana) and Logback Kafka appender for improved performance.
- Developed a monitoring platform using InfluxDB for data storage and Grafana for visualization, supporting flexible rule configuration.
- Built a Go-based gateway system for centralized HTTP application management, streamlining deployment for nearly 100 applications.
Skills:
- Java
- Spring IoC
- Cassandra
- Redis
- Kafka
- Hadoop
- Elasticsearch
- Dubbo
- Go
Hangzhou Zhangkang Technology
- Developed the App backend, providing APIs for mobile clients and web applications.
- Created a scalable and flexible data model, enabling seamless business iteration and complex feature support.
Skills:
- Java
- Spring MVC
- MySQL
- Redis
- Developed offline big data processing for Taobao & Tmall search engines, providing essential data support.
- Maintained and optimized big data frameworks using Hadoop, HBase, Redis, and Hive.
- Optimized processing workflows, reducing overall task execution time by 50%.
Skills:
- Java
- Hadoop
- HBase
- Hive
- Redis
- MySQL
- Spring IoC