Danny L. Email & Phone Number

Sacramento, California, US

• Architected and implemented a secure, stable and resilient serverless reverse proxy that effectively forwards 60M+ of webhook requests per day, ensuring 0 data loss and robust handling of burst traffic (1k req/s)
• Participated in the design of an ETL (Extract, Transform, Load) data pipeline that continuously streams data from MySQL Aurora RDS to Redshift, maintaining 0 data loss over a period of six months
• Contributed to the design and implementation of a Proof of Concept (PoC) for migrating the frontend from a legacy monorepo to Vercel CDN, while accommodating the requirements of a white-label website
• Built and deployed AWS infrastructure using Terraform Cloud, to effectively manage and orchestrate resources while ensuring scalability, reliability, and high availability
• Engaged in troubleshooting activities across databases, servers, and networks as part of daily responsibilities

San Francisco, California, US

• Migrated GraphQL backend API infrastructure, including application servers, elasticache, CI/CD, etc, from a single AWS elastic beanstalk environment to multiple AWS ECS environments with 0 downtime
• Migrated hyrecar.com domain registrar and all DNS records from NameCheap to AWS Route53 with 0 downtime
• Built GitLab k8s CICD pipeline, which includes build, unit tests, integration tests and deployment, for repositories that follow trunk base development workflow
• Enhanced local k8s continuous development environment by introducing and implementing Skaffold, which resulted a 28% increase in development velocity
• Implemented SSL certificate pinning and AWS WAF on the IdP and introduced PKCE (proof key for code exchange) to prevent man-in-the-middle attack on iOS and Android applications.
• Deployed and participated in design of GraphQL Apollo Federation of 20+ microservices in a secured AWS environment

San Francisco, California, US

• Redesigned and rebuilt the entire serverless git repository, including application code refactoring, folder structure reorganization, new CICD pipeline, migration from Serverless Event Gateway to AWS API Event Gateway.
• Detected an AWS breach before it brings destructive impacts, and implemented AWS GuardDuty to better safeguard our cloud environment.
• Redesigned AWS VPC network infrastructure, implemented VPC Endpoints, and migrated S3 buckets to a different region to save thousands of dollars for 100TB+ file transfers per month
• Built and deployed a docker application in ECS Fargate that performed live health check on critical path services; sent data streams into Kafka which then consumed by ksqlDB to calculate uptime and MTTR

San Francisco, California, US

• Designed and wrote 7 serverless lambda functions process thousands of late rentals and orchestrate them using step functions with zero error rate for 3+ years
• Participated in the GraphQL Apollo Federation migration from a single graph schema
• Designed, built and deployed Salesforce microservice architecture that subscribes to MySQL CDC events and updates the CRM dashboards for all customers in a near real time manner
• Built a web server to solved the anonymously authentication problem between the company’s Auth0 service and Zendesk service, whereas Zendesk only support HS256 JWT signature and Auth0 uses RS256

Bachelor'S Degree, Double Major, B.S Civil Engineering & B.S Economics

Advanced Software Engineering Immersive