# Eden Yosef > Senior Software Engineer I at Spring Health Location: Wilmington, Delaware, United States Profile: https://flows.cv/eden I am a front end engineer who is interested in performance optimization, scalability, and clean code. I can also say I have handled the challenges to architecting features and identifying requirements for the backend API quite well. My passions inside the office often translate outside the office. I find myself continually learning about best practices in the tech sector. For fun, I also garden, cook and hike. If you’re interested in learning more about my experience or think I would be a good fit for your company, feel free to reach out to me via LinkedIn. ## Work Experience ### Senior Software Engineer I @ Spring Health Jan 2024 – Present | New York, New York, United States ### Software Engineer II @ Shogun Jan 2021 – Jan 2024 ✔ Contributed to user segmentation feature (targeted experiences) to enable businesses to target users by geolocation and rearchitected data dashboards for scalability. ✔ Implemented user flow improvements including authenticated sign-in flow, dashboard user interfaces and streamlined segment creation, which was flagged as a significant improvement that increased efficiency when the product team demoed segments to ICPs. ✔ Increased e2e test coverage by writing e2e tests in playwright for business-critical features to support automated smoke testing and facilitate continuous integration/continuous deployment. ✔ Managed an impactful A/B/C pricing experiment, investigating the impact of discounts (25% off) and lower pricing ($29/month) on subscription rates. Generated a significant 9% reduction in churn rate during a 10-day free trial. ✔ Managed A/B/C pricing experiment, to investigate how discounts and subscription plan pricing influence subscription rates. Winning cohort had an 8.27% increase in 24-hour trial ratio. Impacted company's pricing strategy. ✔ Led technical implementation of A/B experiment to optimize user funnel into marketing page, resulting in a 7% increase in trial rate, 4% increase in trial activation rate, and a 4% increase in install-to-activation. ✔ Developed a subscription bundling service feature to purchase ability to publish pages at scale, for scalable, no-code visual page building. ✔ Spearheaded a site manager feature that enabled version control for ecommerce stores, supporting asynchronous store deployments for users with globally distributed teams. ✔ Contributed to the shogun CLI developer tool, enabling internal and external developers to compile, build and run ecommerce stores partnered with Shogun. ✔ Mentored junior engineers on code guidelines, product development and UX/UI best practices. ### Software Engineer @ Shogun Jan 2020 – Jan 2021 ✔ Led a CMS (content-management system) sorting feature that enabled populating CMS content into templates, sorting content by date, limiting results and including or excluding draft content. As a result, 100% of users could dynamically integrate CMS data. ✔ Orchestrated cross-functional collaboration among product, design, engineering, and data teams. ✔ Identified and resolved critical constraints and product requirements by facilitating asynchronous and synchronous discussions to prioritize time-to-value. ✔ Spearheaded the development of an innovative drag-and-drop form control prototype, utilizing mocked data, types, and hooks. This scaffolded front-end architecture and provided clear insights into back-end API requirements to ensure parallel execution of engineering tickets. ✔ Advocated for maintainability and best practices by writing a spike on the model-view-model architectural pattern and how to leverage it in the frontend codebase. ✔ Advocated for guidelines on feature flag usage, leading to a lightning talk on feature flagging, update to company code guidelines and implementation of feature flag best practices. ✔ Analyzed frontend architecture needs, goals, and risks; championed the adoption of the MVVM approach, resulting in a seamless transition and enhanced development efficiency; visualized the new structure using a detailed Miro diagram. Led to incremental adoption within the frontend codebase and stabilized integration tests. ### Associate Application Developer, Front-End @ Blue Raster Jan 2019 – Jan 2020 ✔ Created geospatial apps for clients including DC Office of Zoning (DCOZ), National Geographic, World Resource Institute (WRI), New York Botanical Garden (NYBG) & Coast Community College District (CCCD) ✔ Created geospatial apps for clients including DC Office of Zoning (DCOZ), National Geographic, World Resource Institute (WRI) and New York Botanical Garden (NYBG) ✔ Developed all features for the mobile-first NYBG app such as filter, share, search, map layers, and more ✔ Re-architected the use of redux-toolkit to maintain separation of concerns for NYBG ✔ Built features for GFW MapBuilder including print, map coordinates, share, search and measure distance ✔ Developed features for the mobile-first, DCOZ app including the left panel and search bar ✔ Supported the 4.x ArcGIS JS API upgrade in the WRI GFW MapBuilder rewrite & DCOZ rewrite ✔ Presented on polyfill, test driven development, software development methodologies and TypeScript to the engineering team to disseminate knowledge on best practices ✔ Built interactive, geospatial apps with the ArcGIS JavaScript API which visualized client data to build user engagement and support the client’s mission Workshop: AWS Networking Fundamentals, AWS Online Summit 2020 Udemy certification: The Software Development Process Udemy certification: UML and Object-Oriented Design Technical Skills: React, Redux, TypeScript, JavaScript, HTML, Cascading Style Sheets (CSS) ### Web Developer @ HWC Jan 2018 – Jan 2019 ✔ Implemented content updates on Drupalv8.6.1 ✔ Tested workflow and user permissions on Drupalv8.6.1 ✔ Redesigned a blog for a client with PHP, HTML, and CSS to support rebranding project & marketing goals ✔ Implement TDD & BDD on an existing React/GraphQL app via Jest & Enzyme to enhance test coverage Certification: Google Analytics Individual Qualification Udemy Certification: React: Mastering Test Driven Development Technical Skills: JavaScript, Jest, Enzyme, Drupal, HTML, Cascading Style Sheets (CSS) ### Student @ Flatiron School Jan 2018 – Jan 2018 ✔ Took online courses in Ruby, HTML, Cascading Style Sheets (CSS), SQL, Rack, Sinatra, Rails, Javascript, React & Redux ✔ Past projects: https://github.com/eyosef ✔ Technical blog: http://edensenait.com/ ✔ Award: Women Take Tech Scholarship ### Program Coordinator @ Education Org Jan 2016 – Jan 2017 ✔ Coordinated education events and webinars on education policy for 15 - 100+ attendees ✔ Drafted and monitored program budgets/expenditures to prevent and report overspending ✔ Acted as liaison for members and event attendees regarding registration, airfare & lodging ✔ Distributed and collected survey data to track webinar/meeting feedback ### Development Administrator @ non-profit membership association Jan 2016 – Jan 2016 ✔ Managed membership tracking maintaining department records and providing weekly updates ✔ Created a Prospect Profile Library to centralize and systematize prospect member research ✔ Acted as a liaison to members regarding membership dues, conventions and requests to join AAJ ✔ Crafted informational materials for internal use to increase departmental efficiency ✔ Wrote a 75-page manual detailing the processes to track membership dues and use the CRM ✔ Compiled a department guide for interns, with resources/guidelines for a successful internship ✔ Exuded customer service providing membership support regarding registration, airfare and conventions ## Education ### Master's Degree in International Political Economy University of Kent Jan 2014 – Jan 2015 ### Undergraduate in Political Science and Government Rutgers University Jan 2010 – Jan 2014 ## Contact & Social - LinkedIn: https://linkedin.com/in/edenmesfun --- Source: https://flows.cv/eden JSON Resume: https://flows.cv/eden/resume.json Last updated: 2026-03-22