Mr. Sun
GitHub
Professional Summary
Seasoned Software Architect and Tech Leader with 20+ years of experience in .NET web development, system architecture, and cloud solutions. Expertise in full-stack development, DevOps, and SaaS solutions. Proven track record in leading teams, driving innovation, and optimizing system performance.
Core Competencies
✅ Software Architecture & Cloud Solutions (AWS)
✅ Full-Stack Development (C#, React, Node.js, Python)
✅ DevOps & CI/CD Automation (AWS CodePipeline, Jenkins, Docker)
✅ Team Leadership & Technical Mentorship
✅ System Integration & Performance Optimization
Technical Skills
- Programming: C#, JavaScript/TypeScript, Python, Java, SQL
- Web: ASP.NET Core, React.js, Redux, HTML5/CSS, REST APIs
- Cloud: AWS (Lambda, EC2, S3, DynamoDB, SAM, CloudFormation)
- Databases: MS SQL Server, MongoDB, Redis, PostgreSql, Oracle, MySQL
- Tools: Git, Jira, Docker, Jenkins, Postman, VSCode,
- Methodologies: Agile, Scrum, TDD, CI/CD, SOLID, Design Patterns
- AI/ML: NLP, LLM, RAG, HuggingFace, OpenAI, Google colab, MS Copilot Studio
Professional Experience
iPipeline, Inc. (A Roper Technologies Company), PA
Lead Developer / Solution Architect, R&D | April 2013 – Present
- Led a team of 6 developers and 2 QA engineers, managing and building 40+ applications (legacy and new).
- Architected and deployed multiple AWS serverless solutions, reducing operational costs.
- Designed and implemented blue-green deployment strategy, reducing downtime and release risks.
🚀 Key Projects:
- Quote AI Agent: Developed a NLP-powered prototype using LLMs and prompt engineering for Quote Web UI.
- Calc-Engine AWS Serverless Solution: Migrated the quote engine to AWS SAM, integrated CI/CD with GitHub and AWS CodePipeline, improving quote speed by 70%.
- iSolve Quoting Solution: Led the development of iPipeline’s first cloud-native application using AWS (EC2, S3, Lambda, API Gateway, DynamoDB, SQS, CloudFormation, CodePipeline).
- Quote Client & Web API: Built a SPA using React.js, Redux, .NET Core, Docker, deployed with Blue-Green deployment.
- Next-Gen Quote Engine (CalcStorm): Developed a Node.js-based engine using React.js, MongoDB, JWT, and Webpack.
- Auth/PingFederate Integration: Implemented SAML & OAuth authentication solutions for iPipeline applications.
Comcast Corp (Consultant via Turnberry Solutions), PA
Senior .NET Lead Developer | Sep 2012 – Apr 2013
- Designed, developed, and maintained .NET (C#) web applications.
- Led the CI/CD pipeline implementation, reducing deployment time.
🚀 Key Projects:
- Café: Developed a widget-based customer management GUI using .NET MVC3 & jQuery.
- Auto Deployment Solution: Built a Windows Service & Web GUI for automated deployments.
Kemper Corporation, PA
Senior Web Application Developer | May 2010 – Aug 2012
- Designed and maintained .NET web applications with mobile app & API integrations.
- Led a source control & auto-build deployment revolution, improving development efficiency.
🚀 Key Projects:
- New Policy Holder Service: Built with ASP.NET 4 & MVC3, optimizing user experience and policy processing.
- UDILibrary (3-Tier Architecture): Refactored using IoC & WCF, improving modularity.
Broadview Networks, PA
Web Application Developer | Apr 2003 – May 2010
- Independently designed and developed multiple internal web applications to optimize efficiency.
- Developed applications across MS SQL Server, Oracle, MySQL.
- Built J2EE/JSP-based solutions.
🚀 Key Projects:
- Billing Management Web GUI: Architected using ASP.NET 3.5 & MVC Frameworks.
- Jeopardy Reporting & Management GUI: Developed using ASP.NET 2.0, C#, JavaScript, nHibernate, SQL Server.
Open Source Projects
🚀Chinese Characters Recognition App for Students learning Chinese language | July 2023 - Present
- Developed and donated a web application to the Mainline Chinese Culture Center for community use.
- Built using JavaScript, HTML (responsive design), PHP, and MySQL.
- Enhanced functionality by integrating the Google Dictionary API and Hugging Face OpenAI API with an LLM model.
- Open-sourced the project and mentored multiple high school and college students, guiding their contributions.
🚀Minecraft-Python | 2019-2020
- Created a tutorial on learning Python through Minecraft, making programming more engaging and interactive.
- Developed multiple Minecraft plugins using Python, enhancing gameplay and customization.
Certifications & Education
🏆 Sun Certified Programmer for Java 2
🏆 OCA Oracle 9i DBA Certification (SQL)
🏆 Software Engineering Certificate – Villanova University
🎓 Master of Computer Science, Villanova University, PA (GPA: 3.85/4.00)