Betty Li
Flushing
Summary
Senior Software Engineer with experience building scalable backend systems, designing API architectures, and leading technical delivery across multi-team projects. Strong background in distributed systems, event-driven pipelines, subscription and billing workflows, and payments integrations. Recognized for driving architectural decisions, mentoring engineers, improving reliability, and contributing to long-term platform modernization.
Overview
25
25
years of professional experience
Work History
Senior Software Engineer
Weight Watchers International
01.2021 - 04.2025
- Designed and implemented backend architectures supporting subscription lifecycle management, distributed processing workflows, and large-scale API platforms.
- Led technical discovery, system design, and integration planning for complex multi-team initiatives, ensuring architectural consistency and clarity.
- Built event-driven pipelines using modern streaming technologies, increasing scalability, performance, and system reliability.
- Developed secure payment workflows including tokenization, authentication, settlement, and regulatory compliance support.
- Served as a technical lead within the team, guiding engineers through design decisions, code reviews, backlog refinement, and best practices.
- Mentored junior and mid-level engineers, improving code quality, architectural understanding, and debugging proficiency across the team.
- Strengthened platform observability and reliability through distributed tracing, validation improvements, dependency upgrades, and CI/CD enhancements.
- Collaborated cross-functionally with product managers, QA, operations, and partner teams to drive successful end-to-end feature delivery.
- Led production issue investigations and implemented durable solutions to prevent recurrence across core systems.
Software Engineer
Weight Watchers International
01.2009 - 12.2020
- Built and maintained backend services and APIs supporting global membership, billing, and account systems.
- Modernized legacy data ingestion and processing pipelines into cloud-compatible architectures, improving performance and stability.
- Resolved recurring billing and payment edge cases, enhancing accuracy and user satisfaction across markets.
- Worked closely with engineering, QA, and product teams on backend integrations, troubleshooting, and performance improvements.
- Delivered long-term fixes and architectural cleanups to address root causes of production issues.
Web Developer
WeightWatcher.com
04.2001 - 12.2008
- Developed front-end and mid-tier features for web applications using ASP.NET, VB.NET, HTML, and CSS.
- Built UI components for membership, content, and internal tools, contributing to early digital platform growth.
- Conducted Oracle-based debugging, data analysis, and application troubleshooting.
- Provided production support and collaborated with designers, QA, and backend engineers to ship stable product updates.
Web Developer
Etensity, Inc.
12.1999 - 03.2001
- Built web user interfaces for client applications using HTML and classic ASP.
- Delivered front-end components for multiple consulting engagements, including an early e-commerce wedding registry system.
- Partnered with designers and backend developers to deliver polished and reliable user interfaces.
Education
Bachelor of Arts - Psychology
New York University
New York (City), NY06-1992
Skills
- Backend Engineering: Nodejs, REST APIs, Microservices, Postgres
- Architecture: Distributed systems, Event-driven processing, Kafka/Kinesis
- Payments & Billing: Tokenization, authorization, recurring billing, PCI, PSD2
- Subscriptions: Lifecycle logic, activation flows, webhook processing
- Cloud & DevOps: AWS, Docker, GitHub Actions, CI/CD, Observability
- Collaboration & Leadership: Technical discovery, mentoring, cross-team alignment, code review
- Frontend/Legacy: ASPNET, VBNET, HTML, CSS, Oracle
Timeline
Senior Software Engineer
Weight Watchers International
01.2021 - 04.2025
Software Engineer
Weight Watchers International
01.2009 - 12.2020
Web Developer
WeightWatcher.com
04.2001 - 12.2008
Web Developer
Etensity, Inc.
12.1999 - 03.2001
Bachelor of Arts - Psychology
New York University