Heitor Xu

Senior Backend Development Engineer

Led backend development for hotel room sharing and flight ticket refund/change processes, coordinating over 10 teams and adding tens of millions in annual revenue. Implemented AI-assisted TDD practices, reducing online failure rate by 50%.

Backend DevelopmentProject ManagementAI Assisted Test Driven DevelopmentResource PlanningCross team Collaboration

Senior Backend Development Engineer

Senior Backend Development Engineer

Led backend development for hotel room-sharing and flight ticket refund/change projects, coordinating 10+ teams and adding tens of millions in annual revenue. Promoted AI-assisted TDD practices, reducing online failure rate by 50%.

Backend DevelopmentProject ManagementAI Assisted Test Driven DevelopmentResource PlanningCross team Collaboration

Senior Backend Development Engineer

Headed the information development team, coordinating requirements, scheduling, and risk management. Resolved performance issues such as market data freezes and improved system stability.

Project ManagementSystem StabilityPerformance OptimizationRisk Management

Senior Backend Development Engineer

Supported high concurrency for the 2018 FIFA World Cup user rights delivery system, achieving 1000+ TPS and 100% success rate. Led iterative development of the user center delivery system.

High Concurrency SystemsMicroservicesSystem DevelopmentPerformance EvaluationEmergency Response

Senior Backend Development Engineer

Senior Backend R&D Engineer

Led integration with third-party payment channels such as Alipay, WeChat, UnionPay, and Lakala. Designed and optimized core payment functions and resolved channel anomalies to ensure stability.

Payment IntegrationAlipayWeChat PayUnionPayLakalaSystem StabilitySystem Design

Senior Backend Development Engineer

Designed core architecture for next-generation call center product and improved technical framework. Overcame technical hurdles in UnionPay Call Center Upgrade Project, ensuring on-time delivery.

Architecture DesignFrameworkCall CenterUnionPayProblem SolvingTechnical LeadershipContact Center Systems

Senior Backend Development Engineer

Software Project Manager

Managed WeChat Banking Project lifecycle from development to maintenance, preparing technical solutions for tenders. Incubated WeChat marketing products, turning losses into profits with annual revenue of 2 million.

Client PresentationsProject ManagementWeChat DevelopmentProduct IncubationTender Preparation

Credit Client Manager

Promoted personal credit loan products, achieving top three team monthly performance and top five store ranking with zero overdue repayments. Provided product and process optimization suggestions that were adopted.

Credit ProductsSalesClient ManagementProcess Optimization