Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am a senior software engineer with over 20 years of full-stack experience, specializing in the .NET ecosystem to deliver robust, scalable, high-performance solutions across real estate, healthcare, logistics, and e-commerce. My work spans from system architecture through cloud deployments, with a strong focus on performance optimization, clean code, and agile delivery. I also bring deep front-end experience with React, Vue, Angular, and back-end mastery with ASP.NET Core, .NET, SQL Server, and microservices. I collaborate closely with product managers and QA to translate business goals into reliable software, while continuously improving CI/CD, testing, and documentation. I bridge technical and business goals, driving innovation while maintaining a disciplined approach to code quality and maintainability. My background includes migrating legacy systems to scalable cloud-native architectures, delivering responsive, component-driven UIs, and shaping multi-region data platforms. I enjoy mentoring teams, embracing new technologies, and delivering high-quality software that meets regulatory and operational requirements.…I am a senior software engineer with over 20 years of full-stack experience, specializing in the .NET ecosystem to deliver robust, scalable, high-performance solutions across real estate, healthcare, logistics, and e-commerce. My work spans from system architecture through cloud deployments, with a strong focus on performance optimization, clean code, and agile delivery. I also bring deep front-end experience with React, Vue, Angular, and back-end mastery with ASP.NET Core, .NET, SQL Server, and microservices. I collaborate closely with product managers and QA to translate business goals into reliable software, while continuously improving CI/CD, testing, and documentation. I bridge technical and business goals, driving innovation while maintaining a disciplined approach to code quality and maintainability. My background includes migrating legacy systems to scalable cloud-native architectures, delivering responsive, component-driven UIs, and shaping multi-region data platforms. I enjoy mentoring teams, embracing new technologies, and delivering high-quality software that meets regulatory and operational requirements.

Pengxin Fan

Full Stack Developer, Web Developer, Front-End Developer, +2





I am a senior software engineer with over 20 years of full-stack experience, specializing in the .NET ecosystem to deliver robust, scalable, high-performance solutions across real estate, healthcare, logistics, and e-commerce. My work spans from system architecture through cloud deployments, with a strong focus on performance optimization, clean code, and agile delivery. I also bring deep front-end experience with React, Vue, Angular, and back-end mastery with ASP.NET Core, .NET, SQL Server, and microservices. I collaborate closely with product managers and QA to translate business goals into reliable software, while continuously improving CI/CD, testing, and documentation. I bridge technical and business goals, driving innovation while maintaining a disciplined approach to code quality and maintainability. My background includes migrating legacy systems to scalable cloud-native architectures, delivering responsive, component-driven UIs, and shaping multi-region data platforms. I enjoy mentoring teams, embracing new technologies, and delivering high-quality software that meets regulatory and operational requirements.…I am a senior software engineer with over 20 years of full-stack experience, specializing in the .NET ecosystem to deliver robust, scalable, high-performance solutions across real estate, healthcare, logistics, and e-commerce. My work spans from system architecture through cloud deployments, with a strong focus on performance optimization, clean code, and agile delivery. I also bring deep front-end experience with React, Vue, Angular, and back-end mastery with ASP.NET Core, .NET, SQL Server, and microservices. I collaborate closely with product managers and QA to translate business goals into reliable software, while continuously improving CI/CD, testing, and documentation. I bridge technical and business goals, driving innovation while maintaining a disciplined approach to code quality and maintainability. My background includes migrating legacy systems to scalable cloud-native architectures, delivering responsive, component-driven UIs, and shaping multi-region data platforms. I enjoy mentoring teams, embracing new technologies, and delivering high-quality software that meets regulatory and operational requirements.

Available to hire

I am a senior software engineer with over 20 years of full-stack experience, specializing in the .NET ecosystem to deliver robust, scalable, high-performance solutions across real estate, healthcare, logistics, and e-commerce. My work spans from system architecture through cloud deployments, with a strong focus on performance optimization, clean code, and agile delivery. I also bring deep front-end experience with React, Vue, Angular, and back-end mastery with ASP.NET Core, .NET, SQL Server, and microservices. I collaborate closely with product managers and QA to translate business goals into reliable software, while continuously improving CI/CD, testing, and documentation.

I bridge technical and business goals, driving innovation while maintaining a disciplined approach to code quality and maintainability. My background includes migrating legacy systems to scalable cloud-native architectures, delivering responsive, component-driven UIs, and shaping multi-region data platforms. I enjoy mentoring teams, embracing new technologies, and delivering high-quality software that meets regulatory and operational requirements.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Senior Software Engineer (Permanent) - Lead Full-Stack Developer at Bright Logic Ltd

July 1, 2024 - Present

Led the end-to-end modernization of a flagship real estate CRM, migrating from a legacy VB.NET WinForms desktop app to a cloud-based web platform. Implemented a front-end in Vue.js with DevExtreme, backed by ASP.NET Core 6+ APIs on Azure. Applied SOLID, DRY, Repository, and Factory patterns to produce a maintainable, production-ready codebase. Achieved a 60% improvement in dashboard load times through asynchronous data fetching and server-side paging. Modernized CI/CD pipelines with GitHub Actions and Azure DevOps to improve deployment reliability, and introduced minimal APIs and hot reload for faster development. Ensured comprehensive unit and integration testing using xUnit, MSTest, Moq, and Playwright.

Senior Software Engineer at Sensium Health care Ltd

November 1, 2018 - May 1, 2024

Developed API-driven backend using ASP.NET Core consumed by React frontends and mobile clients. Built high-throughput clinical data systems with SQL Server, Dapper/EF Core, RabbitMQ, and Docker; orchestrated via Kubernetes. Automated CI/CD pipelines with Azure DevOps and enforced test coverage using xUnit, MSTest, Moq, NSubstitute, and Playwright. Delivered containerized microservices and asynchronous messaging for resilience and scalability across multi-region deployments, partnering closely with product managers and QA in Agile sprints.

Senior Software Developer at Car Delivery Network Ltd

January 1, 2017 - January 1, 2018

Developed VIN Dispatch and VIN Deliver logistics web applications using C#, Service Stack APIs, AngularJS, and SQL Server. Enhanced job management and delivery tracking with scalable RESTful APIs built on ASP.NET Web API and responsive UI. Migrated functionality to modern ASP.NET 4.5+ features to improve performance and maintainability.

Software Developer at Timber Ltd

January 1, 2012 - January 1, 2017

Built e-commerce and intranet applications, including Timber Products Web App and Timber Customer Survey, using C#, ASP.NET MVC, AngularJS, and SQL Server. Delivered dynamic, user-friendly interfaces with jQuery, AJAX, and Bootstrap while improving performance and reliability.

Software Developer at Capita Software Service

January 1, 2007 - January 1, 2012

Developed e-commerce and HR applications, such as Resource Manager and Online Student Service, using C#, ASP.NET, and SQL Server. Implemented web and Windows apps with AJAX, LINQ, and XML; improved user experience and operational efficiency. Employed SOLID, DRY, Repository, and Dependency Injection patterns.

Web / Software Developer / DBO at John Ruskin College

March 1, 2006 - July 1, 2007

Web/Software Developer / DBO: Built and maintained an Electrical Attendance System (EAM) for teachers; designed ER diagrams and data flows; implemented student success and reporting modules for intranet and web-based systems using ASP.NET, C#, AJAX, and SQL Server.

Web / Software Developer at Entia Systems, Inc.

February 1, 2004 - August 1, 2005

Web/Software Developer: Designed a Dynamic Web Page Generator and Customer Payment Processing for eSienta Systems, Inc. (ESI), improving clerical processes and productivity by about 20%. Implemented secure login and robust data handling for online payments and reporting.

Intern Project at Southern University and A&M College

January 1, 2002 - January 1, 2004

Part-time Web-based Library Management System: implemented a searchable catalog, inventory tracking, loan/return workflows, and security for librarian access; contributed to data modeling and UI.

Education

M.S. in Computer Science & Electrical Engineering at Southern University and A&M College (USA)

January 11, 2030 - December 1, 2002

B.S. in Computer Science at Yangtze University, China

January 11, 2030 - September 1, 1991

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Healthcare, Transportation & Logistics, Real Estate & Construction, Education, Professional Services, Retail, Media & Entertainment