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vinny vinny

@vinnyvinny

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Software Engineer building reliable backends, payments, AI, and developer platforms.

Australia

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What I'm looking for

I want to build production-grade backends for payments and developer platforms, with AI features that ship reliably. I care about 幂等、可观测性和可重试设计, and I’m excited to own end-to-end delivery with a collaborative team.

I’m a Software Engineer with 3+ years of研发经验, focused on building reliable back-end systems—from payment infrastructure to developer platforms and AI-enabled products. I enjoy taking systems from 0 to 1 and delivering上线级、可运行的能力.

In my current role, I研发了 Cregis Payment Engine，覆盖 checkout/payment 流程、支付会话状态流转、交易事件处理、商户 Webhook 与开发者 API. I built reliability mechanisms such as 幂等控制、单调状态流转、可重试 worker、事件持久化与运行可观测性，来降低重复处理与支付状态遗漏风险.

I also expanded developer experience by building Cregis Developer Center, including SDK/API Reference、Webhook 行为、错误码与中英文文档，以及商户接入流程. On the AI side, I developed Anydocs Ask, a本地优先 RAG/Q&A助手 with BGE-M3, SQLite + sqlite-vec, Anthropic LLMs, SSE streaming, and Ask/MCP integration, backed by evaluation loops for检索质量与引用准确性.

Previously at the University of Technology Sydney, I led real-time flood forecasting and 3D visualization, integrating AI inference services with Deck.gl 3D geospatial rendering. I built FastAPI/WebSocket 异步后端服务 and optimized PyTorch pipelines (about 40% faster), then designed a Vue 3/TypeScript interactive UI and ETL pipelines for实时更新.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Cregis

Feb 2025 - Present (1 year 5 months)

Developed the Cregis Payment Engine backend, covering checkout/payment flows, payment session state transitions, transaction event handling, merchant webhooks, and developer APIs. Implemented reliable payment event processing with idempotency, monotonic state transitions, retryable workers, persistence, and observability; built a Developer Center and an RAG/Q&A assistant with SSE streaming and an

Payment Processing Checkout Flow Webhooks Developer APIs Observability RAG Q&A SSE Anthropic LLMs BGE M3 Sqlite Vec MCP

研究软件开发工程师

University of Technology Sydney

Mar 2023 - Jan 2025 (1 year 10 months)

Led development of a real-time flood forecasting and 3D visualization platform, integrating AI inference services with Deck.gl 3D geospatial rendering. Built FastAPI/WebSocket asynchronous backend services and improved a PyTorch prediction pipeline; developed a Vue 3/TypeScript interactive map and ETL workflows for real-time simulation updates.

Real Time Predictions 3D Rendering Deck.Gl fastAPI WebSockets Asynchronous PyTorch TypeScript ETL

软件工程实习生

H2X Engineering

Jul 2022 - Jan 2023 (6 months)

Implemented authentication and organization migration features for an enterprise engineering platform using Vue.js and Node.js. Resolved AWS Lambda timeout issues and developed a heatmap visualization module to help engineers identify design defects faster.

Vue.Js Node.Js Development Authentication AWS Lambda Heatmaps

IronixPay

Designed and built a payment gateway system including hosted checkout, a merchant backend, JavaScript SDK, webhook delivery, and on-chain event handling. Implemented HD wallet address allocation, on-chain payment detection, transactional outbox, ledger balances, idempotency controls, retry workers, recovery loops, and AML screening.

Rust Axum SeaORM PostgreSQL TypeScript Docker Payment Gateways SDK Webhooks HDWallet Transactional Outboxes Ledger Balances Retry AML Chain Monitoring

Weilan SaaS

Built a deployed multi-tenant vertical SaaS platform for car film shop operations, covering lead allocation, CRM, quotes, appointments, work orders, payments, warranty cards, notifications, and web/admin tooling with mobile workflows. Implemented role permissions, audit logs, idempotent action APIs, file uploads, data dashboards, and customer-facing public links to support end-to-end operations.

Python fastAPI PostgreSQL TypeScript Docker CRM Scheduling Work Orders Payments Warranty Management Notifications Audit Logs Upload Dashboarding Customer Public Links

Education

Degrees, certifications, and relevant coursework

University of Technology Sydney

Master of Information Technology, Information Technology

2021 - 2023

Grade: High Distinction (HD)

Master of Information Technology at UTS, graduating with High Distinction (HD) and receiving the Dr. Chau Chak Wing Scholarship.

Shanghai University of Science and Technology

Manufacturing Systems Engineering

2016 - 2020

Grade: GPA Top 1% (1/58), 推免资格

Bachelor's-level study in Manufacturing Systems Engineering, achieving a GPA ranked Top 1% (1/58) and obtaining a recommendation for graduate admission (推免资格).