Bilingual; Mandarin) Senior Database Engineer; DBA)

Position: Bilingual (Mandarin) Senior Database Engineer (DBA)
If you are a Bilingual (English/Mandarin) Senior Database Engineer (DBA) and want to join a growing, tech-savvy E-Commerce company with a dynamic team then apply now! This Jobot Job is hosted by:
Jennifer Thomas Are you a fit? Easy Apply now by clicking the "Quick Apply" button and sending us your resume. Salary: $135,000 - $155,000 per year A bit about us:
We are a tech-enabled last mile delivery provider that specializes in connecting ecommerce shippers to their customers through fast and reliable delivery services. We offer next-day and 2-day delivery options tailored for retailers, marketplaces, and direct-to-consumer brands, along with seamless integration for logistics providers and 3PLs. Our focus is on technical innovation, our company ensures real-time tracking, SMS updates, and cost-effective solutions to enhance the delivery experience.

Our services cover over 11,000 zip codes across the U.S. and Canada, reaching a population of 175 million customers. Why join us? Competitive Compensation Growth role Full Benefits, including 401K Growing Tech-Focused Company PTO and Holiday Pay Job Details We are a fast-growing cross-border logistics technology company with business spanning global multi-region warehousing, real-time shipment tracking, cross-border customs data exchange, and logistics financial settlement.

The company processes large volumes of shipment tracking updates, order queries, warehouse operations, financial settlement, and customer data access requests every day. Database stability, data consistency, backup and recovery, access permission control, and data security compliance are core requirements. We are looking for an experienced Bilingual (English/Mandarin) DBA expert to join us in building a stable, secure, and auditable data infrastructure.

** We will sponsor a candidate for this role.
** Responsibilities ad Duties:
Core Database Operations:
Responsible for high-availability deployment, daily monitoring, backup and recovery, and troubleshooting of the company's MySQL, Ocean Base, Redis, MongoDB, and Oracle databases. Large-Scale Migration & Upgrades:
Lead TB-level online database migrations across data centers and across clouds, such as Azure / AWS, version upgrades, and data archiving projects, ensuring zero business interruption and zero data loss. Performance Optimization & Stability:
Analyze slow queries and design appropriate indexes; optimize Redis cache hit rate and MongoDB aggregation pipeline performance; resolve high-concurrency bottlenecks such as logistics trajectory write peaks and inventory deduction. Architecture Design & Standards:
Participate in business database schema reviews; develop sharding solutions, such as Sharding Sphere / Proxy, and read-write separation solutions; refine DBA operations SOPs and full-lifecycle data governance. Automation & Cost Management:
Develop automated operations tools, including backup verification, health inspection, and capacity forecasting. Collaborative Support:
Work with development and operations teams to diagnose and fix database-related issues for the logistics order system, POS / DMS, real-time dashboards, and more. Education/Requirements:
Bachelor's degree or above in a computer-related major, with 5+ years of DBA experience, including at least 3 years of DBA experience in large-scale online production environments with average daily QPS  10,000. Deep MySQL expertise: familiar with InnoDB internals, GTID replication, Orchestrator high availability, and hands-on sharding experience. Redis proficiency: familiar with 5+ data structures, persistence mechanisms such as RDB / AOF, cluster scaling, hot-key governance, and big-key governance.

Oracle familiarity: daily operations and performance…