shawnzhong
Senior Backend Engineer
Senior Backend Engineer with 15+ years of experience building scalable backend systems, payment platforms, and distributed architectures using Go and Java. Experienced in Kafka, PostgreSQL, Redis, Docker, and event-driven systems, with hands-on blockchain and DeFi projects. I'm looking for remote Senior Backend, Platform, Infrastructure, or Web3 Backend Engineering roles where I can build high-performance, reliable systems and contribute to products at scale.
Experience: 4 years
Yearly salary: $60,000
Hourly rate: $35
Nationality: 🇨🇳 China
Residency: 🇹🇼 Taiwan
Experience
Web3 Backend Developer
AllScale | NFT Marketplace 2023 - 2023
Participated in a decentralized NFT marketplace supporting multi-chain NFT minting, trading, auctions, and cross-chain NFT bridging; peak daily trading volume reached 500 ETH with 50K+ users.
Java Developer / PM
Sandpay Network Service Development Co., Ltd. 2017 - 2023
Led development and project management for core payment systems, supporting market-facing third-party payment scenarios including WeChat Pay and Alipay QR-code payment integrations.
Java Developer / PM
Hongcheng Computer Systems Co., Ltd. 2010 - 2017
Participated in the Shanghai Telecom Business Navigator system, enabling single sign-on, system interoperability, and enterprise information services for platform customers.
Java Developer / PM
Hongcheng Computer Systems Co., Ltd. 2010 - 2017
Participated in the Shanghai Telecom Business Navigator system, enabling single sign-on, system interoperability, and enterprise information services for platform customers. Worked on an MVC three-tier architecture using Struts 1.2, Ajax, SpringMVC, XML, iBatis, Oracle, SQL Server, and Web Service integration with telecom CRM and accounting systems. Handled feature development from JSP front-end pages to business logic and database processing, and also supported database maintenance, system release, requirements collection, requirements confirmation, and acceptance delivery. Communicated with customers on business details, promoted project initiation, translated business requirements into deliverable features, and accumulated large-scale enterprise integration and cloud resource deployment experience.
Java Developer
iSo Stone, Nanjing 2009 - 2010
Worked onsite with Huawei on BPO / IPCC call-center business process outsourcing systems, helping enterprises build call-center teams by purchasing platform services and resources.
Java Developer
iSoftStone, Nanjing 2009 - 2010
Worked onsite with Huawei on BPO / IPCC call-center business process outsourcing systems, helping enterprises build call-center teams by purchasing platform services and resources. Developed Java applications using Dojo, jQuery, Struts2, Spring transaction control, and Huawei's internal data-processing framework. Worked in an MVC three-tier development model across front-end, business logic, and database functions; clarified requirements with team leaders and colleagues, wrote code, and contributed design suggestions.
Skills
java
postgres
solidity
sql
golang
english