Hello, I am

Dunxingbao

Senior .NET Full Stack Developer

Senior .NET Full Stack Developer with 7+ years of experience specializing in WMS, ERP, and high-concurrency backend systems. Expert in Database Tuning (SQL Server/Oracle EBS) and Code Performance Optimization, with a proven track record of reducing core API latency from 30s to 3s. Currently exploring Web3 and Go backend development. Unique competitive edge in AI-Augmented Engineering leveraging tools like Cursor/Windsurf to boost development velocity by 300%+.

Download Resume

Professional Experience

Senior .NET Developer

Shenzhen Junlong Electronics Co., Ltd.

Mar 2023 — PresentShenzhen, China

Led the digital transformation of warehouse systems, focusing on mobile migration, gateway integration, and performance tuning.
1. PDA System Migration (WinCE to Android): Spearheaded the full-scale migration of the handheld terminal system from Windows CE to Native Android. Solved cross-platform hardware compatibility issues (Scanner/RFID) and optimized broadcast mechanisms, achieving 100% device compatibility and a 50% increase in scanning efficiency.
2. Enterprise API Gateway Integration: Architected a unified gateway layer using Tyk API Gateway to integrate internal WMS with external ecosystems (CATL/Ningde Times & Meituan). Implemented unified authentication and rate limiting, ensuring TP99 < 200ms for high-concurrency cross-system calls.
3. WMS Performance Tuning: Managed the full lifecycle of the WMS. Optimized heavy-load scenarios (Inbound/Outbound/Stocktaking) by tuning Oracle EBS stored procedures and SQL Server execution plans. Successfully reduced core report query time from 30s to 3s, resolving system congestion during peak hours.
4. Team Leadership: Established Code Review and Unit Test standards. Mentored 2 interns to become independent contributors within 3 months and facilitated the team's transition from Java to .NET stack.

RPA Developer / Senior Consultant

Deloitte Consulting (Shanghai)

Aug 2022 — Feb 2023Shanghai, China

Delivered enterprise automation solutions, combining RPA tools with custom C# high-performance components.
1. RPA Solution Delivery: Led the design and development of 10+ enterprise-level automated processes using iS-RPA and Selenium/XPath. Saved the client 300+ man-hours annually per high-frequency scenario.
2. C# Extension Development: Developed high-performance extension components (DLLs) using C# and Python to handle compute-intensive tasks (e.g., large Excel merging, PDF splitting, OCR), overcoming the performance limitations of native RPA scripts.
3. Standardization: Encapsulated a standardized API request template with unified authentication and retry mechanisms, covering the codebase with NUnit automated testing to ensure stability.

Intermediate .NET Developer

Shenzhen Zhenzhi Technology Co., Ltd.

Aug 2021 — Jun 2022Shenzhen, China

Focused on B2C ERP core modules, algorithm optimization, and legacy system modernization.
1. ERP Core Development: Responsible for the core backend of the B2C ERP, integrating APIs for Southeast Asian e commerce platforms like Lazada and Shopee.
2. Algorithm Optimization: Refactored nested loop logic using Hash Maps (Dictionaries), successfully reducing algorithm complexity from O(n²) to O(n).
3. Performance & Architecture: Optimized core report queries from 5s to 1s via index rebuilding. Migrated legacy XML-based configurations to a database-driven dynamic configuration service to enable hot-reloading.

Intermediate .NET Developer

Shenzhen Hongguo Software Co., Ltd.

Jun 2020 — Jun 2021Shenzhen, China

Handled high-volume data architecture for a Cross-border ERP system.
1. High-Volume Data Architecture: Developed an ERP system (Wish/eBay) handling 8 Million+ records per table. Designed a dynamic database sharding mechanism using dependency injection to alleviate single-point pressure.
2. Database Performance Governance: Analyzed SQL Server Execution Plans to resolve slow queries. Optimized indexes and rewrote SQL logic, improving query speeds by 70% (5s+ to <1s).
3. Smart Procurement Module: Led the development of the "Smart Procurement" algorithm, automating purchase suggestions based on sales forecasting, achieving a highly efficient "single-person closed-loop" workflow.

.NET Developer

Nanjing Jianpu Software Co., Ltd.

Jun 2018 — Jun 2020Nanjing, China

Developed Engineering Management Platforms with IoT and visualization features.
1. Engineering Platform: Developed Contract and Payment modules handling complex financial logic (Prepayments/Retention Money) using ASP.NET MVC + WCF + EF.
2. IoT & Visualization: Integrated RFID hardware for asset tracking. Innovative implementation of 2.5D interactive floor plans using Canvas + SVG, allowing drill-down interactions for a 47-story building asset monitoring system.

Skills & Technologies

Expert

Advanced

Intermediate

skills.dotnet

C# 10/11/12Expert · 7y

.NET 6/7/8Expert · 5y

ASP.NET CoreExpert · 5y

ASP.NET MVCExpert · 7y

Web API / RESTfulExpert · 6y

BlazorIntermediate · 2y

WCF / gRPCAdvanced · 4y

SignalRAdvanced · 3y

skills.csharp

LINQ / LambdaExpert · 7y

Async/Await / TPLExpert · 6y

Reflection / Expression TreesAdvanced · 5y

Generics / CovarianceExpert · 6y

Dependency InjectionExpert · 5y

Design Patterns (GoF)Expert · 6y

Memory Management / Span<T>Advanced · 3y

Source GeneratorsIntermediate · 2y

skills.orm

Entity Framework CoreExpert · 5y

Entity Framework 6Expert · 7y

DapperExpert · 5y

ADO.NETExpert · 7y

Repository PatternExpert · 6y

Unit of WorkExpert · 5y

CQRS / MediatRAdvanced · 3y

skills.database

SQL Server 2016-2022Expert · 7y

T-SQL / Stored ProceduresExpert · 7y

Oracle EBS / PL-SQLAdvanced · 3y

Query OptimizationExpert · 6y

Execution Plan AnalysisExpert · 6y

Index TuningExpert · 6y

Redis / CachingAdvanced · 4y

Database ShardingAdvanced · 3y

skills.microsoft

Visual Studio 2022Expert · 7y

Azure DevOpsAdvanced · 4y

NuGet Package ManagementExpert · 6y

MSBuild / dotnet CLIAdvanced · 5y

Windows ServicesAdvanced · 5y

IIS / KestrelAdvanced · 6y

PowerShellIntermediate · 4y

skills.testing

xUnit / NUnitExpert · 5y

Moq / NSubstituteAdvanced · 4y

Integration TestingAdvanced · 4y

Code ReviewExpert · 5y

SonarQubeIntermediate · 3y

Performance ProfilingAdvanced · 4y

skills.mobile

Native Android (Java/Kotlin)Advanced · 3y

PDA Industrial DevelopmentExpert · 4y

RFID/Scanner SDKAdvanced · 4y

Windows CE MigrationExpert · 2y

Xamarin / MAUIIntermediate · 2y

skills.devops

Microservices ArchitectureAdvanced · 3y

Domain-Driven DesignAdvanced · 3y

Tyk / Ocelot API GatewayAdvanced · 2y

Docker / ContainersAdvanced · 3y

CI/CD PipelinesAdvanced · 4y

RabbitMQ / Message QueueIntermediate · 2y

Linux / NginxIntermediate · 3y

Tools & Others

Cursor / Windsurf AIExpert · 2y

Prompt EngineeringAdvanced · 2y

Go (Learning)Intermediate · 1y

Web3 / BlockchainIntermediate · 1y

Python (RPA/Automation)Intermediate · 3y

Git / GitHubExpert · 7y

Agile / Scrum / JIRAAdvanced · 5y

Education & Certifications

Hunan University of Technology

Bachelor in Computer Science and Technology

January 2024

Yongzhou Vocational and Technical College

Vocational Education in Computer Application Technology

January 2019

Get In Touch

I'm currently open to remote opportunities. Feel free to reach out!

1301385382gjts@gmail.com

Phone

+86 138-7473-5053

Location

Shenzhen, China (Remote)

Available for remote work worldwide

LinkedIn GitHub