Xiaoquan Sun
Frederick
Summary
Software developer with a Master's degree in Computer Science and over 3 years of experience delivering healthcare-related applications. Proficient in SQL, .NET, database-driven development, and Power BI, with a strong foundation in system design, reporting logic, and data analytics. Adept at collaborating with cross-functional teams to develop scalable solutions, enhance data integrity, and streamline workflows. Certified in Google Advanced Data Analytics, with a strong commitment to deliver reliable, well-documented systems through clear communication and thoughtful implementation.
Overview
3
3
years of professional experience
Work History
Application Developer
FEI Systems
Columbia, MD
02.2018 - 07.2020
- Developed and maintained healthcare enterprise software for AmeriHealth MCO, supporting the LTSS system using .NET (C#, ASP.NET), SQL Server, and PostgreSQL in an Agile environment. Utilized Object-Oriented Design (OOD) principles to create scalable, maintainable code, incorporating best practices for design.
- Collaborated with cross-functional teams, including database engineers and business stakeholders, to build data reports, execute data imports/exports, and support daily ETL operations. Contributed to system architecture decisions with a focus on Service-Oriented Architecture (SOA) and integration of RESTful services.
- Created and maintained comprehensive system documentation and custom internal reports, improving data accuracy, reducing manual lookup time, and ensuring alignment with business needs. Applied Domain-Driven Design (DDD) principles to model complex business logic and facilitate clear communication across teams.
- Designed and implemented a role-based access control module in ASP.NET Core to enforce secure access to protected API endpoints. Assigned user roles dynamically and created corresponding JSON configuration files to define role-specific permissions. Integrated role management into the system deployment workflow, enabling multiple user types with tailored access levels.
- Participated in the full Software Development Life Cycle (SDLC), including requirements gathering, design, coding, testing (including unit and integration tests), release planning, and ongoing support. Employed Test-Driven Development (TDD) and version control (Git) to ensure code quality and collaboration within the team.
Graduate Assistant
Towson University
Baltimore, MD
01.2017 - 05.2017
- Led lab sessions and tutoring for undergraduate students in C++, supporting academic success and technical comprehension.
- Assisted in creating instructional materials, grading assignments, and improving student engagement.
Education
Master of Science - Computer And Information Science
Towson University
Baltimore, MD05-2017
Bachelor of Science - Computer Science and Technology
Qingdao Technological University
Shandong, China, China07-2014
Skills
- Programming Languages: SQL, C#NET, C/C, VBNET, HTML, CSS, JavaScript, R(Statistics)
- Programming & Development Tools: SQL Server (2008/2016), Visual Studio (2013/2015), Power BI, Microsoft 365(M365):
- SharePoint Online(SPO): Configure and maintain SPO sites and site contents including Document libraries, Lists, Pages, and Content type, etc Establish and maintain permissions for users and groups from site to item level Provide user guides and instruction manuals for new features or processes
- OneDrive: Troubleshoot user permission issues and restore a deleted OneDrive site
- Microsoft Teams: Create new team and integrate with SPO and other M365 apps
- Power Automate (Flow): Send email to a specific approver, approvers in a SPO list, multiple people in SPO Person column, or members of a SPO group
Timeline
Application Developer
FEI Systems
02.2018 - 07.2020
Graduate Assistant
Towson University
01.2017 - 05.2017
Bachelor of Science - Computer Science and Technology
Qingdao Technological University
Master of Science - Computer And Information Science
Towson University