William Nguyen — Portfolio

Career

Experience

IT Operations Specialist

Proofpoint · Sunnyvale, CA

Feb 2026 – Present

Engineered an enterprise-wide Copilot IT Agent deployed to over 7,000 employees, reducing the IT helpdesk ticketing queue by 40% through intelligent ticket deflection and AI-driven self-service resolution.
Migrated the firm's internal knowledge base from Atlassian Confluence to SharePoint and restructured its architecture for optimized Copilot RAG integration, improving AI retrieval accuracy and content discoverability.
Designed and deployed custom GPT models and AI agents across multiple business units, enabling personalized AI workflows tailored to each team's operations.
Leveraged Microsoft Power Platform to govern agent usage, manage compute budgets, and build automated deployment pipelines for AI solutions.

Microsoft Azure Copilot Studio ChatGPT Claude Power Platform Power Automate Power Apps SharePoint Jira

Information Technology Intern

Proofpoint · Sunnyvale, CA

Sep 2025 – Feb 2026

Resolved over 150 IT support tickets per week on average, maintaining a lifetime CSAT score of 4.9/5.
Managed company-wide device lifecycle using Intune and Jamf, including provisioning, managing, and troubleshooting for Windows and macOS endpoints.
Conducted new hire IT onboarding orientation for all new hires at the Sunnyvale headquarters location.
Supported the AV team in a large-scale town hall for over 7,000 employees by managing microphone setups, Zoom configurations, and audio checks.

Microsoft 365 Microsoft Azure Okta GlobalProtect VPN Active Directory Intune Jamf AssetSonar Jira

Digital Transformation Intern

Petrinovich Pugh & Co., LLP · San Jose, CA

Apr 2023 – Feb 2024

Built and deployed Power Automate & Power Apps workflows and automated accounting forms adopted by 80%+ of firm accountants, eliminating manual redundant processes.
Led firm-wide accounting software migrations; personally migrated 50+ accountants including managing partners with zero billing disruption.
Onboarded and offboarded 40+ staff across all levels; managed Active Directory user provisioning and access control.

Power Automate Power Apps Microsoft Azure Active Directory ConnectWise QuickBooks

Work

Projects

Active

X-Ray Medical Diagnosis Predictor

Multi-label CNN pipeline using PyTorch to classify lung diseases from chest X-rays, trained on over 120,000 images spanning 30,000+ unique patients. Benchmarked multiple architectures and deployed an interactive Streamlit web app for real-time predictions.

Built various multi-label CNN models using PyTorch to classify lung diseases from over 120,000 chest X-rays spanning over 30,000 patients.
Benchmarked ResNet18, DenseNet121, custom CNN, and MLP models for multi-label classification, identifying the highest-performing architecture for lung disease detection.
Utilized Streamlit to develop a web app enabling users to select models and input X-ray images for real-time disease predictions.

Python PyTorch CNN Streamlit

Toolkit

Skills

AI / Automation

Microsoft Copilot Studio ChatGPT Claude Suite Power Automate Power Apps Power Platform LLM Integration Prompt Engineering Agentic Workflows Enterprise AI Deployment RAG Architecture

IT Operations

Hardware Provisioning Software Deployment User Account Management Active Directory Asset Management MDM Intune Jamf Okta Microsoft Azure SharePoint Jira