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Elizabeth Xu
Entry-Level Software Engineer specializing in ML/NLP and security
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About
Early-career engineer (internship background) who built a production-style notes product using Next.js App Router with Server Components/Server Actions and a Postgres-backed analytics model. Demonstrates strong performance and reliability instincts—measured DB latency improvements via indexing and cursor pagination, plus durable orchestration with Temporal using idempotency and deterministic workflows.
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Key Strengths
- Shipped full-stack Next.js feature end-to-end using Server Components and Server Actions with direct DB access
- Database performance tuning with measurable improvement (indexing reduced query time ~100ms to ~30ms)
- Scalability-minded data access patterns (cursor pagination, payload reduction, avoiding unnecessary re-renders)
- Strong Postgres schema design (normalized tables, constraints, composite/partial indexes) aligned to query patterns
- Validates DB optimizations with EXPLAIN ANALYZE and production monitoring
- Built durable multi-step workflows with Temporal (retries, idempotency via constraints/keys/upserts, deterministic execution, versioning/replay)
- Production-quality practices: risk-based testing strategy plus logging/metrics/tracing/alerts tied to user impact
- UX/perceived-performance improvements (instant UI updates, loading/disabled states to prevent duplicate writes, clear empty states)
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