Hana Lee Email & Phone Number

Redmond, WA, US

San Francisco, California, US

• Leading backend and frontend teams for a health tech startup.
• Leading a team of 7 engineers, achieving a 90% goal completion rate across four quarters through effective project execution and mentorship.
• Coordinate with product and engineering teams to streamline the commercial and billing platforms, fulfilling 95% of deal desk requests.
• Direct IPO readiness efforts, ensuring data integrity and control implementation by collaborating with product, engineering, and finance teams.
• Drive Operational Excellence, resulting in zero P1-P3 incidents across six quarters and proactively preventing four P1 incidents.
• Partner with cross-functional teams to refine data processes, supporting readiness assessments and strategic decision-making.

San Francisco, California, US

• Lead engineer transitioning monolithic billing systems to scalable, event-driven architectures.Technical Leadership
• Spearheaded the decomposition of a monolithic billing system, improving system performance and operational efficiency.
• Designed a new billing platform, significantly enhancing scalability and system observability.
• Led cross-team initiatives, including automating Netsuite invoicing, saving over 26 hours permonth and improving billing accuracy.Technical Expertise and Collaboration
• Developed a configuration-based discount framework, reducing support time by 90% and saving the RCM team over 33 hours monthly.
• Designed a new configuration service, decreasing engineering operational time by 90% for new client setups.

Seattle, Washington, US

• Backend engineer responsible for developing, maintaining and optimizing services.
• Developed backend solutions using Ruby, Clojure, MongoDB, and PostgreSQL, enhancing contentdistribution reliability and system performance.
• Implemented pagination and health checks, optimizing performance and improving continuous development processes.
• Mentored junior developers, contributing to their career development and technical growth.
• Reduced errors in content distribution jobs to zero, improving overall system stability.
• Enhanced system performance by implementing advanced delegation logic and monitoring tools.

Seattle, Washington, US

• Responsible for developing backend services and ensuring compliance across product suites.
• Designed user permissions modules and 3rd-party integrations, improving access control andservice interoperability.
• Developed backend solutions using Ruby on Rails and MySQL, streamlining service operations.
• Led testing procedure documentation, reducing communication time with QA teams andimproving product quality.

San Francisco, California, US

• Developed custom SDK to improve ability for 3rd party developers to integrate with CloudPassage API using Python, Pytest, Travis-CI, reducing lines of scripts for integrating service by 93%.
• Implemented CI for deployments in Jenkins, Docker, Travis-CI and Code Climate, optimizing development release cycle by 50% while improving product quality through minimizing human error.
• Built scalable and secured automation performance testing environment using AWS (S3, EBS), Ansible, and Ruby Minitest, detecting 40% more bugs than manual testing and reducing testing time by 65%.

Master Of Science, Information System Engineering

Master Of Arts (M.A.), Economics

Bachelor Of Arts (B.A.), Economics