Hello, I'm

Shuhao Pang

Call me Portia. Full-stack engineer with 5 years of end-to-end ownership across payment infrastructure, multi-tenant platform architecture, and cloud-native systems — progressing from Software Engineer to Senior in 3 years at a high-growth B2B SaaS company. Architected production systems from zero to one, including a multi-tenant membership platform and a high-availability payment infrastructure serving clients such as Statue of Liberty, Niagara Falls, Alcatraz, and San Diego Zoo.

Full-Stack Development Cloud Architecture Membership Platforms Payment Systems AWS Serverless React / Node.js / TypeScript

Work Experience

Building systems that matter

Senior Software Engineer

Anchor Operating System

Jan. 2024 - Present
  • Sole designer and implementer of a multi-tenant Membership Management System serving 10+ tourism properties, supporting 800K+ active memberships and over $100M in annual recurring revenue. Led the full lifecycle — requirements gathering, schema design, implementation, and zero-downtime production rollout via a versioned routing layer replacing the legacy system with full backward compatibility.
  • Designed an 8-entity single-table DynamoDB schema managing 7M+ records; utilized 3 GSIs and composite sort keys to support 5+ access patterns, achieving consistent single-digit millisecond (<10ms) query latency.
  • Implemented a 6-phase membership purchase pipeline handling new purchases, renewals, upgrades, and downgrades with deterministic action validation and automated benefit allocation.
  • Built a lazy-evaluation benefit system with configurable accrual rules and expiry-based recovery, eliminating 20+ daily heavy cron jobs and reducing database read load by ~40% while keeping balances always current.
  • Developed cryptographic card number generation using a Feistel cipher with Luhn check digits — globally unique without external coordination.
  • Built an event-driven async processing layer on SQS for purchase orchestration, report generation, and CRM integration.
  • Architected a high-availability payment platform integrating Stripe, Chase, and Authorize.net. Implemented idempotent webhook processing and automated fault-recovery, achieving 100% financial data consistency across distributed environments.
  • Owned and built a back-end automation engine for global subscription lifecycle management using AWS Lambda and SQS — eliminating 100% of manual payment failure intervention and supporting a 40–60% increase in transaction volume.
  • Designed a transaction integration layer consolidating fragmented booking flows into atomic, performant service calls, processing 100% of platform orders with improved throughput and stability at peak traffic.
  • Built a full-stack revenue management dashboard with real-time telemetry, guest analytics, and predictive forecasting — enabling engineering and finance to proactively detect bottlenecks and financial discrepancies.
  • Provisioned and maintained cloud infrastructure via Terraform across Lambda, DynamoDB, S3, and AppSync, ensuring reproducible, secure environments aligned with CNCF best practices.

Software Engineer II

Anchor Operating System

Jun. 2022 - Jan. 2024
  • Engineered a dynamic cart state-management engine enabling real-time API-driven modifications without disrupting the user session lifecycle. Reduced redundant compute cycles through optimized UI-to-API synchronization.
  • Led the design and delivery of comprehensive automated integration test suites for core API services and SDK components across multiple teams, validating end-to-end system reliability and maintaining 99.9% uptime for critical customer-facing flows.

Software Engineer

Anchor Operating System

Jul. 2021 - Jun. 2022
  • Designed and implemented a centralized itinerary bundling engine aggregating data for 100% of system-wide orders, ensuring consistency across multiple service modules and eliminating data fragmentation.
  • Built the automated integration testing framework adopted across core API services and SDK components — reducing regression risk and establishing the reliability baseline for platform-wide deployments.

Technical Skills

Tools and technologies I work with

Languages

JavaScript (ES6+) TypeScript Java SQL HTML CSS

Frontend

React Redux HTML5/CSS3 Responsive UI React Router GraphQL WebSockets

Backend & APIs

Node.js REST APIs GraphQL API Gateway Event-Driven Architecture Microservices

Data Modeling

DynamoDB Single-Table Design Multi-Tenant Architecture Schema Design

AWS Services

Lambda DynamoDB S3 SQS AppSync CloudWatch CloudFront SES

DevOps & Tools

Terraform CloudFormation Git GitHub Actions CI/CD Postman Integration Testing npm/yarn Webpack ESLint/Prettier Jira/Confluence

Side Projects

Fun experiments & explorations

🎮 Games Hub

Browser-based puzzle games • Sudoku with notes, hints & timer

Play Games →
JavaScript HTML/CSS Game Logic

✨ More projects on the way

Education & Certifications

Academic background and professional credentials

AWS Certified Cloud Practitioner

Amazon Web Services

2024

Professional Certification

Master of Science in Information Technology

California Lutheran University

2019 - 2021

Graduate Scholarship Recipient

Bachelor of Business Administration in Finance

BNU-HKBU United International College

2012 - 2016

Languages

Multilingual communication

English

Fluent

Mandarin Chinese

Native

Cantonese

Fluent

Get In Touch

Let's connect

I'm currently open to new opportunities and interesting projects. Whether you have a question or just want to say hi, feel free to reach out!

📧 Email Me 💻 GitHub 💼 LinkedIn