# Kihaen Baik > Senior Frontend Engineer Location: New York City Metropolitan Area, United States Profile: https://flows.cv/kihaen The best projects I've been on, often inspired me to be more creative in problem solving, supporting initiatives to research and explore the best options available to the market. I pride myself in being better each day, and providing the best solution to suit the needs of the project. I emphasis simplicity in design and code, in an agile environment we emphasize the ability to adapt and change. Taking ownership of a code base has taught me that, readability of code should be self evident to the intentions of the developer. It's important to me that i am developing new and robust solutions to your problems that stands the test of time. ## Work Experience ### Software Engineer @ Unknown Jan 2024 – Present | New York City Metropolitan Area ### Sr. Frontend Engineer @ Reflexivity Jan 2023 – Jan 2024 | New York City Metropolitan Area Designed and implemented financial indicator graphs using D3.js with canvas and SVG, asset overview screens, stock screeners and other tools to analyze and visualize trends in equities, stocks, currencies, and other financial assets • Delivered LLM based prompt screens and supporting components that allowed users to interact with our unique financial based model, allowing users to navigate our application and create new tooling templates from questions asked. • Developed comprehensive unit and integration tests using Jest and React Testing Library in Typescript to ensure high code coverage and relia‑ bility throughout a fast paced test driven development. • Streamlined development by creating UI components for our design systems in collaboration with the UX team to fit UI/UX best practices, supported by Storybook stories to showcase different states and edge cases and tests. • Integrated Typescript with Zod type checking and API queries with React Query for robust type validation and caching for efficient data fetching and improving test development. • Worked closely with other senior engineers to swiftly develop and divide back‑end and front‑end tasks for new goals and initiatives, track progress, and ensure timely follow‑ups in an Agile environment • Built optimally rendering components that integrated WebSockets from real‑time data sources, and managed global states with zustand for effective state management ### Senior Software Engineer @ nTop Jan 2021 – Jan 2023 | New York, United States Developed and deployed various permission dashboards and visualization tooling to progress business initiatives and scale. Resulting in contract renewals, and increased confidence in our licenses that drove ARR to over 50% • Designed and deployed cloud based licensing UI in which thousands of organizations directly utilized to interact with the tooling we had avail‑ able; as well as administrative dashboards used internally to help support these organizations. • Revised the architecture and lead the refactor of our main licensing application written in React Redux by introducing middle‑wares such as Sagas, reducer optimizations, dynamically generated action creators which significantly decreased our page load times by over 50%. • Led and fast‑tracked projects through their life‑cycle filling in gaps, presenting prototypes, gathering specifications from product/UX, breaking down engineering tasks and mentoring juniors allowing us to achieve KPIs in smaller time frames, and address tech debt. • Developed a self sign‑up journey to which personalized content and tutorials could be provided, this brought on 30% more web traffic to the licensing application and saw 50% increase in retention. ### Software Engineer @ nTop Jan 2020 – Jan 2021 | New York City Metropolitan Area Collaborated on many redesigns including the support website, working with UX designers on Figma specifications to make content responsive, cross functionally communicating with the directors, product managers and engineers in the process. • Introduced headless testing with React Testing Library, unit testing with Jest and CI/CD integration of Cypress achieving over 95% coverage • Lead the initiative to re‑purpose multiple dashboards and granting customers tables and visualized data using D3and revising pre‑existing endpoints to service the updated UI. • Reorganized the code‑base to better utilize react hooks, created consistency around error handling and reduced SASS code by 60%. Resolving 40% of the tech debt in the process. ### Software Engineer @ Cummins Inc. Jan 2017 – Jan 2020 | United States Contributed to the development of IOT management dashboard with React and Redux, integrating AWS amplify library and adopting Redux state management into React. • Demonstrated proficiency in front‑end technologies such as React and JavaScript, applying best practices and mentoring more junior engineers. • Developed micro‑services on AWS Lambda working with SES Emails and invoked parallel lambdas to verify and parse data queries from both S3 and RDS. This minimized the time users had to wait to receive verification emails. • Worked with international team to enhance the styling of our application, by introducing SASS, communicating over different time‑zones to identify inconsistencies and coordinating over Jira tickets. • Refactored styles and components to be more reusable, by introducing code‑splitting / chunking into web‑pack. Reducing the compiled build by over 30%. ## Education ### Bachelor's degree in Computer Science Queens College ## Contact & Social - LinkedIn: https://linkedin.com/in/kihaen-baik --- Source: https://flows.cv/kihaen JSON Resume: https://flows.cv/kihaen/resume.json Last updated: 2026-03-29