Senior Backend Software Engineer
On-siteHangzhou, Zhejiang, China
Job Summary
Design, develop, test, and maintain backend services, APIs, data models, and integration layers for semiconductor equipment software. Build reliable backend capabilities for web application workflows, including request handling, validation, persistence, error handling, and service orchestration. Collaborate with frontend engineers to define clear contracts and work with product, QA, and infrastructure partners to translate requirements into solutions. Troubleshoot complex issues across application, data, and runtime boundaries while writing unit and integration tests. Conduct code reviews focused on API design and maintainability, mentor junior engineers, and support CI/CD and production practices. Full-time role in Hangzhou, CHN; 20% travel required.
Required Qualifications
- Bachelor's degree or above in Computer Science, Software Engineering, Electrical Engineering, Automation, Applied Mathematics, or a related field
- 7+ years of relevant software engineering experience
- Strong hands-on backend development experience using Python or similar programming languages
- Experience designing and implementing RESTful APIs or backend services for production applications
- Solid understanding of object-oriented programming, modular design, clean code, and maintainable architecture
- Experience with Docker, Kubernetes, Linux, cloud platforms, observability, logging, monitoring, or scalable system design
- Experience with relational or NoSQL databases and reliable data access patterns
- Experience with unit testing, integration testing, debugging, Git-based workflows, code review, and CI/CD
- Ability to analyze requirements, clarify ambiguity, evaluate trade-offs, and deliver solutions independently
- Strong communication and collaboration skills across engineering, product, QA, and infrastructure teams
Desired Qualifications
- Experience with backend frameworks such as FastAPI, Flask, Django, or similar technologies
- Experience building backend services for complex web applications, enterprise applications, engineering software, or data-driven platforms
- Experience with API contract design, schema validation, versioning, and backward-compatible API evolution
- Experience with asynchronous processing, long-running tasks, workflow orchestration, or distributed systems
- Experience with performance profiling, troubleshooting, query optimization, or backend reliability improvements
- Experience mentoring engineers or leading backend design discussions
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