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.• Introduced a business/revenue incident framework, optimizing incident escalation and prioritization processes based on revenue impact.

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