David Lee Email & Phone Number

Sunnyvale, Ca, Us

Newton, Ma, Us

• Background: Centrify/Idaptive/CyberArk is an Identity and Access Management company, which enables organizations to manage user accounts and on-prem/cloud applications in one central location.• Developed and maintained various projects related to OAuth2, OpenID Connect, SAML, JWT, WS-Trust, WS-Fed, Kerberos, MFA, IWA, ADFS, Active Directory, LDAP, SCIM.• Led the team with high profile projects: Workforce Password Management, Secure Web Sessions, Inbound Provisioning, etc.• Migrated our cloud infrastructure from Azure to AWS.• Containerized our services and deployed them in AWS EKS.• Resolved performance issues and technical debts related to Postgres, LDAP, Logging, etc.• Technologies: C#, ASP.NET, Azure, AWS, PostgreSQL, Redis, Git, Selenium, Windows Server

Newton, Ma, Us

Santa Clara, California, Us

Santa Clara, California, Us

San Francisco, California, Us

Mclean, Va, Us

• Summary: As a full stack developer in National Small Business team, my responsibility is to automate the Checking/Savings account opening process for small business owners.• Created microservice for machine learning project using Python, Flask, Apache, Docker, AWS, Jenkins.• Built a data scraper which fetches the business entity information from IRS and Department of State to complement missing information from business research firms such as LexisNexis.• Maintained account opening microservice built in Java, Spring Boot, Hibernate, JUnit, Mockito.• Became AWS Certified Solutions Architect, Developer, SysOps Administrator.

Santa Monica, Ca, Us

• Summary: Cornerstone provides HR management solution to 2,300+ companies worldwide (20.5 million users). As a full stack .NET developer in Extended Enterprise(Payment) team, I helped our clients purchase and manage online trainings.• Worked on most payment features since the inception of our team. Wrote code in all layers (DB, Business Logic, UI) for projects such as PayPal Integration, Training Recommendation, Coupon, Pricing, Refund, Anonymous Browsing, Deep Link, Training Unit(Cyber money), etc.• Designed and implemented microservices for pricing model using OWIN, Web API and NHibernate as a part of companywide initiative to break down monolithic codebase.• Improved code quality by introducing unit test frameworks in Unit Test Council, refactoring legacy code, writing unit/integration tests, and maintaining 70% code coverage for new projects.• Developed Shopping Cart and Checkout page as single page app for better user experience.• Reduced search response time from 10 minutes to 5 seconds in Manage Transaction page by tuning SQL.• Developed tools for customer support to analyze client issues and defects.• Non-technical accomplishments: mentored junior developers, wrote tech documentation and troubleshooting guide, conducted code review for our team’s check-ins, attended Scrum ceremonies

Santa Monica, Ca, Us

• Summary: LoanDNA provides mortgage solutions for pre-qualification, loan modification, and counseling. I worked as a full stack Java developer, primarily responsible for Front End development.• Designed and implemented generic web components which were leveraged throughout the system.• Implemented loan evaluation system using JBoss rules engine.• Integrated web services such as First American CREDCO, Zillow API and HopeNow.• Set up automation testing using Hudson, TestNG and Selenium.

Ms, Computer Science

Bs, Computer Science