https://karensin.github.io/portfolio I'm a Frontend Developer based in San Francisco, California. I am passionate about creating simple, intuitive experiences that solve real user problems.
Experience
2023 — Now
2023 — Now
Palo Alto, California, United States
Drive development of core frontend features using Vue 3 and Vuex, including third-party notification integration, inbox functionality, a dynamic workflow builder, and customizable branding — improving user engagement and system performance.
Lead frontend development and serve as domain expert for the Productiv App Center, driving daily standups and sprint planning to enhance team alignment and execution.
Collaborate cross-functionally with design and product teams to define project goals, scope technical requirements, and align on timelines — enabling smooth implementation, improving customer satisfaction, and driving new revenue opportunities.
Own end-to-end release process, driving successful weekly customer deployments by proactively identifying, triaging, and resolving blockers — ensuring on-time releases and strengthening customer trust.
2021 — 2023
2021 — 2023
Palo Alto, California, United States
2020 — 2021
2020 — 2021
Lead frontend project developer on building the rebranded Flair airlines website and mobile apps with improved user experience and additional enhancement features.
Implemented features with SDK (Software Development Kit) that can be used across 777 partners portfolio airlines to support and provide a unified infrastructure for better management, reusability, optimized application for performance and scalability.
Managed our CMS (content management system) that allows clients to update flight route information, news and other information in real time.
Redesigned and implemented member service and inflight entertainment features for the mobile app using React Native and Mobx . New features such as international travel flights and member services are estimated to increase 30% in revenue and user usage.
Designed and implemented various front-end user interfaces and developed ideas, products, or features using React, Redux, Typescript to follow new developments and trends.
Collaborated with team members to establish objectives and design more functional, cohesive code to enhance the user experience.
Developed ideas for new programs, products, or features by monitoring industry developments and trends.
Analyzed and refactored existing source code for proprietary in-house systems
Ensured technical feasibility of UI/UX designs with designers and project managers
Compiled and analyzed data, processes, and code to troubleshoot problems and identify areas for improvement.
2018 — 2019
2018 — 2019
Enhanced data accuracy on Apple Maps by leading the data aggregation across multiple US map data sources: satellite imagery, apple street view photos, and user location data.
• implement new map features to identify potential map inaccuracies
• Road quality detection
• Street sign changes
• Road closures and alterations
• Built analytics dashboards with PostgreSQL , ArcGIS , and QGIS to report on traffic and road
alterations via large datasets
• Worked closely with designers on new map features which included planning out workflows on the delivery of the features to maximize discoverability, interface behaviors, and how information is being navigated and displayed.
2017 — 2018
UCSF mission bay
• Research on the correlation between high quantities of Cortical Inhibitory Neurons and High Rates of Autism Spectrum Disorder (ASD).
Education
University of California, Davis
Bachelor of Applied Science (B.A.Sc.)
2012 — 2016
Bloc