# Tiffany Luu > Senior Software Engineer at Marqeta, Inc Location: San Francisco Bay Area, United States Profile: https://flows.cv/tiffanyluu Full-Stack Engineer with 5+ years of experience building scalable, high-performance web applications using React, Java, and AWS. I can work across the whole stack to deliver end-to-end features — from designing responsive, user-centric interfaces to developing reliable backend systems, implementing CI/CD pipelines, automating infrastructure, and enabling robust observability for fast, safe deployments. Languages: JavaScript, Java, Python, SQL Frameworks: React, Spring Boot, GraphQL Tools & Platforms: AWS, Git, Terraform, CI/CD, Datadog ## Work Experience ### Senior Software Engineer @ Marqeta Jan 2024 – Present • Re-architected a monolithic NGINX-hosted web application into a distributed architecture using AWS CloudFront and API gateway. This included provisioning the new infrastructure with Terraform, updating CI/CD pipelines, refactoring application routing to the edge service, and configuring CORS policies—resulting in improved global availability, scalability, and fault tolerance. • Migrated GraphQL service from ECS to Kubernetes, enabling scalable, observable, and resilient deployments • Implemented automated CI/CD pipelines for QA releases with health-gated checks and rollback mechanisms, reducing deployment risk and accelerating release velocity • Built REST APIs with Java Spring Boot to support white-label banking operations, handling account management and credit/debit transaction workflows • Implemented Datadog monitoring and proactive alerts via Terraform to track application performance, detect anomalies, and reduce mean time to recovery ### Software Engineer II @ Marqeta Jan 2022 – Jan 2024 • Built an environment switcher component with React in the Marqeta dashboard to route API calls between sandbox and production, enabling in-dashboard sandbox access and improving customer onboarding velocity • Rebuilt user access management for a web application by creating React forms and permission logic in GraphQL to enable flexible granular role management across the web application. • Developed a responsive, pixel-perfect React interface for the Marqeta status page, providing intuitive, real-time visibility into the health of multiple products and services ### Software Engineer I @ Marqeta Jan 2021 – Jan 2022 ### Software Engineer Intern @ Marqeta Jan 2021 – Jan 2021 ### Jr. Frontend Developer @ Caraway Home Jan 2021 – Jan 2021 • Rebuilt home, product, and landing pages using Shopify Liquid and CSS to match design specifications, ensuring cross-browser compatibility and fully responsive designs • Integrated Vue.js with Shopify to provide dynamic product descriptions and image galleries ## Education ### Bachelor's degree in Psychobiology UCLA Jan 2016 – Jan 2020 ## Contact & Social - LinkedIn: https://linkedin.com/in/tiffany-luu0 --- Source: https://flows.cv/tiffanyluu JSON Resume: https://flows.cv/tiffanyluu/resume.json Last updated: 2026-03-23