# Yuriy Tolstykh > Senior Web/Full-stack Software Engineer Location: San Jose, California, United States Profile: https://flows.cv/yuriytolstykh Full Stack Software Engineer in San Jose/Bay Area. I'm passionate about web and front-end technologies. Please include your company location when you reach out. ## Work Experience ### Senior Software Engineer @ Mixpanel Jan 2024 – Jan 2025 | Remote • Led warehouse connectors project, allowing customers to connect Databricks, Redshift, BigQuery, and Snowflake warehouses to Mixpanel to import data. I was responsible for the full stack implementation: MySQL, Python/Django server, and React web frontend. • The warehouse connectors project brings in 7% of our total revenue with over 5000 successful event imports. • Worked closely with infrastructure engineers, product, and design to scope and implement new features. ### Senior Software Engineer @ Affirm Jan 2021 – Jan 2023 • Built the brand new savings account experience on web, adding millions of dollars in assets. • Created a promotion module to offer incentives to our customers, increasing gross merchandise volume by an average of 26%. • Significantly reduced tech debt and code complexity, separating data logic from view logic using custom React hooks. Added ESLint and TypeScript checks to run in pull requests. • Led a team of 3 engineers, building new internal tools together to help remediate issues for 200k customers onboarded to rewards programs. Authored tech specs, provided estimates, wrote and reviewed code, reported regular project updates, and ran user acceptance testing. • Worked closely with product and design to build four web projects on the main shop feed that generates 30% of the company revenue. ### Senior Software Engineer @ Shape Security Jan 2019 – Jan 2020 | Santa Clara, CA • Created and maintained a React-based style and component library adopted by three different products. • Introduced product and engineering lifecycle processes, like design docs, standardized code reviews, standups, and retrospectives. • Added error logging to three products that provided visibility into issues in production. • Provided the solution for and successfully integrated internal web-based IDE product into a customer facing config manager. • Worked closely with eng managers and recruiting to revamp the recruiting process. • Mentored four junior engineers. ### Senior Software Engineer @ Manifold Technology Jan 2018 – Jan 2019 | Sunnyvale, CA • Responsible for the entire web front-end - from styling to deployment. • Built and maintained scalable web applications, including commodities exchange app, platform for connecting influencers and content-creators, and a merchant portal for a rewards program. • Implemented the front-end workflow, style guide, linters, and deployment process. • Ensured product quality with automated unit tests and integration tests. • Acted as a consumer advocate when working with product and design to deliver high quality user experience. ### Full Stack Software Engineer @ Wealthfront Inc. Jan 2014 – Jan 2017 | Redwood City, CA Part of the web team. • Built the college savings accounts product in a team of 4, and launched it on schedule, adding millions of dollars in investments in just the first month. • Led and successfully launched advanced indexing project establishing new best practices and expanding core functionality, providing custom client experience at different tiers. This increased the number of clients at higher tiers. • Improved the signup flow based on data analysis increasing traffic by 14%. • Implemented multiple new features, working closely with product, design, and data teams. • Created internal dashboards tracking key metrics for each experiment I implemented, that were used to drive business decisions. • Helped create and maintain the style guide repository used across multiple projects. • Wrote internal tools, libraries, and infrastructure increasing developer productivity. • Developed and calibrated the new analytical web interview, and became the primary and only interviewer conducting over 30 interviews. ### Application Support Engineer @ Epic Jan 2012 – Jan 2014 • Software Development: Redesigned and maintained tools for data transfer from internal to customer environments. Automated internal processes using Windows scripting language. Developed 40 documented fixes and enhancements in Epic 2014 release (top 5 in a team of 90). Part of the internationalization team. • Business Intelligence: Successfully built and maintained customer-facing KPI reports using SAP business objects and Crystal reports for optimizing OR management. • Project Management: Optimized materials management and charging performance for perioperative services. Imported thousands of preference cards into live production environments. Set up KPI and SCIP reports for OR managers. Localization manager for the Russian translation team of 10. • Customer Support: Work closely with three large healthcare organizations to provide quality technical software support, identify customers’ needs and objectives in order to design, develop, and implement best solutions, troubleshoot issues, and gather resources for escalations. ### Mathematics Instructor @ Heald College Jan 2010 – Jan 2011 | Hayward, CA ## Education ### Web development App Academy ### MS in Mathematics CSU East Bay ### BS in Mathematics California State University - East Bay ## Contact & Social - LinkedIn: https://linkedin.com/in/yuriy-tolstykh-2310802 --- Source: https://flows.cv/yuriytolstykh JSON Resume: https://flows.cv/yuriytolstykh/resume.json Last updated: 2026-03-22