日立能源是全球技术领导者，致力于构建清洁能源系统，共享低碳美好未来。我们服务于电力、工业、交通、数据中心和基础设施领域的客户，并携手客户与合作伙伴，通过数字化加速能源转型进程，助力实现碳中和的未来。
我们在全球90个国家拥有超过45,000名员工，他们每天都充满目标感地工作，并且利用各自的不同背景打破墨守陈规。我们诚邀你加入我们的全球团队，共同坚守这一简单而深刻的理念：多元化+协作=创新的关键。
- Design, write, and optimize PostgreSQL queries including:
- Stored functions
- Triggers
- Views
- Complex joins and window functions
- High-performance queries
- Optimize PostgreSQL performance through:
- Index tuning
- Query plan analysis
- Partitioning (when needed)
- Build backend services using C# .NET and Python, integrating with PostgreSQL.
- Develop and maintain GraphQL APIs using Hasura connected to PostgreSQL.
- Apply strong transaction handling, error control, and concurrency management.
- Build both REST and GraphQL endpoints with proper validations and structured responses.
- Maintain database schemas, table designs, and relational structures.
- Troubleshoot issues related to:
- PostgreSQL performance
- Hasura metadata or GraphQL behavior
- Backend API logic
- Write unit tests, integration tests, and database tests.
- Document SQL routines, backend logic, and GraphQL schema structures.
| 地点 | Chennai, Tamil Nadu, India |
| 工作类型 | Full time |
| 经验 | Experienced |
| 工作职能 | Engineering & Science |
| 合同 | Regular |
| 发布日期 | 2026-04-30 |
| 参考编号 | R0127537 |
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