Work & campus

Smart-parking / smart-community / digital-asset custody SaaS company · AI Full-stack EngineerCurrent

• Three SaaS product lines share one account, tenancy, permission and payment foundation, serving six roles — driver, guard, lot operator, property manager, asset owner and tenant; one order and one billing rule must stay coherent across four clients
• Shipped core backend paths inside a Spring Boot 2 multi-module monolith (~170 controllers, 1,400+ Java files): monthly renewal, self-service space-management fees, temporary-parking toggle, payment-record aggregation and callback period extension, with the API contract handed to all four clients
• Payment overhaul: unified six entry points — temporary exit, monthly renewal, reservations, space-management fees and more — from redirecting to the Lakala cashier into in-app WeChat Pay (main-scan), handling validity extension on callback, channel-accurate status queries, zero-amount orders and distributed locks, with old and new channels coexisting per lot for a gradual cutover
• Custody loop end to end: rent / deposit / service / property / space-management fees in one order at signing, split by contract on callback; renewal extends the original expiry; move-out passes review before the deposit refund fires; split recipients and ratios configured in the console, and every settled amount traces back to contract, order and payment record
• Worked across the resident mini program (uni-app, 390 pages, 5 subpackages): home rebuild, monthly-pass lookup and renewal, vehicle certification, Lakala main-scan migration, unified session-expiry handling; moved 1,152 KB of static assets to OSS and recompressed to clear the 2,048 KB package limit
• Built admin-console screens on the Vue 2 console (190+ pages): gatehouse video and barrier permissions, real-time lane notifications, monthly-pass validity, merged arrears payment, split-recipient and deposit-refund review, with permissions delivered by role
• Multi-tenant security: phone numbers unique per account domain, cross-tenant and cross-level access limits, four-dimensional authorization (identity × role × app center × tenant), duplicate-plate interception across users
• Delivery and quality: every requirement starts with a design doc whose claims point at a `file:line`, every change ends with static checks and explicit activation prerequisites; 179 regression cases cover API / web / mini program, write results back to Yunxiao and file defects automatically
• AI engineering: two toolchains — Modao design-source ingestion (MCP server) and Yunxiao-driven automated regression — wired into daily delivery, so reviews, integration and regression leave executable artifacts rather than chat logs

Shangrao Yajie Construction Engineering Co., Ltd. · Operations Development Engineer

• Handled daily operations and secondary development of the internal business system (Spring Boot + Vue)
• Wrote scripts to automate routine ops tasks and boost efficiency
• Participated in API integration and data report development for business analytics
• Monitored system performance, diagnosed and resolved lag issues to keep the system stable

School of Mathematics & Computer Science · BSc

• Transferred into CS Class 223 in Feb 2024; graduated June 2026
• Core courses: Data Structures, Computer Networks, Database Systems, OS, Software Engineering