Explorar las categorías
Explora
Fiverr Pro
Español
$
USD
Yihong Z.
@david_zhai
Backend Reliability Engineer, Idempotent Webhooks, ETL and LLM Evals
Alemania
Inglés, Chino, Alemán
Sobre mí
I'm a backend engineer who fixes the failures that cost money: duplicate webhook charges, ETL jobs that drop or double rows, and LLM features that hallucinate in production.
What sets me apart: every service is backed by a public demo with tests and CI on my GitHub, so you can see proof before you order.
I work on:
- Exactly-once webhooks and payment idempotency
- Idempotent ETL and migrations that reconcile to the cent
- LLM eval harnesses that catch hallucinations
- Scheduling optimization with OR-Tools
Rescue jobs start with a paid diagnosis. I keep scope tight and ship tested code.
Habilidades
Yihong Z.
desconectado •
Revisa mis servicios
API e integraciones
I will build a reliable stripe or authorize net webhook integration
revisión de código
I will do a secure code review of your ai generated web app with a fix report
