后端工程师 (Kotlin)

Job Description

We are seeking a senior Kotlin backend engineer to join our team. As a backend engineer, you will be responsible for designing, developing, and optimizing backend services to support high-traffic and high-performance applications.

Responsibilities

• Backend Development: Design, develop, and optimize backend APIs and services using Kotlin (or Java).
• Architecture Design: Participate in system architecture design to ensure code quality, scalability, and high performance.
• Database Management: Optimize SQL/NoSQL databases to improve data access efficiency.
• API Design and Development: Develop RESTful or gRPC APIs to integrate with frontend and mobile teams.
• Microservices and Cloud Deployment: Develop scalable microservices architecture and deploy using Docker, Kubernetes, AWS/GCP.
• Performance Optimization: Identify and resolve system performance bottlenecks to improve application efficiency.
• Testing and Code Quality: Write unit tests, integration tests to ensure code stability.
• Cross-Team Collaboration: Work closely with frontend engineers, product managers, QA teams to drive product delivery.

Requirements

• 3+ years of experience in Kotlin or Java backend development, familiar with Spring Boot, Ktor, or similar frameworks.
• Familiar with PostgreSQL, MySQL, MongoDB, or Redis for database management and optimization.
• Familiar with RESTful API, GraphQL, or gRPC design and development.
• Familiar with microservices architecture, Docker, Kubernetes, and cloud deployment (AWS, GCP, or Azure).
• Familiar with multi-threading, asynchronous programming, and message queues (Kafka, RabbitMQ) for performance optimization.
• Good English communication skills to collaborate with international teams.
• Currently residing in Shenzhen or surrounding areas, with regular office work and occasional trips to Hong Kong.

Preferred Skills

• Experience with high-concurrency and large-scale system development.
• Understanding of DevOps, CI/CD pipelines to drive automation deployment and operations.
• Experience with distributed systems or data architecture design.
• Contributions to open-source projects or personal technical blogs.