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Qi Zhang
Mid-level Software Engineer specializing in distributed systems and automation
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About
Engineer with experience at Flexport and Microsoft, focused on full-stack and backend platform work in complex workflow and permissions-heavy systems. They’ve shipped customer-facing Next.js/GraphQL features, improved PostgreSQL-backed authorization performance, and driven an event-driven SQS architecture change that improved throughput by ~20% and sped up new workflow development by ~30%.
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Key Strengths
- Full-stack TypeScript development across Next.js frontend and GraphQL/PostgreSQL backend
- Strong backend ownership of permissions and source-of-truth data models
- Architectural modernization from synchronous services to event-driven SQS workflows
- Production incident diagnosis and reliability improvement
- Performance optimization of auth-related PostgreSQL query patterns
- Designing scalable notification and configuration systems with conflict resolution
- Measured impact: 20% throughput improvement and 30% faster workflow development
- Reduced workflow failure rates by about 15% through validation, monitoring, and error handling
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