Shashwat

Delivered full-stack development solutions for a startup, focusing on localization, user behavior analytics, and platform responsiveness to expand market reach and improve user experience.

• Implemented i18n for Thai language localization, increasing accessibility for Thai-speaking users and driving a 12% increase in new user signups from the Thai market.
• Integrated PostHog for comprehensive user journey tracking, providing critical insights into user behavior and enhancing product visibility for data-driven decisions.
• Resolved critical bugs to enhance platform responsiveness across multiple devices, ensuring a seamless user experience and improving overall reliability.

Led full-stack development initiatives for a leading EdTech platform, focusing on backend system design, API optimization, and robust UI configurations to enhance user experience and drive business growth.

• Engineered and deployed a backend-driven UI configuration system using Spring Boot, enabling dynamic, rule-based screen rendering via APIs and JSON, ensuring high reliability through extensive unit testing (JUnit 5, Mockito, MockMvc).
• Integrated PayPal and Stripe payment gateways, expanding user payment flexibility and preferences, which directly increased trial-to-paid conversions by 10-11% and uplifted total revenue by 8-9%.
• Automated Nginx configuration updates for country-specific rules by implementing S3 file modifications and redeployments, slashing manual update time from 2 hours to just 10 minutes.
• Optimized purchase page API response time by 62.5% (from 800ms to 300ms) through database bottleneck identification, indexing, and caching, significantly enhancing the checkout experience.
• Refactored core Java modules leveraging OOPs principles and design patterns, substantially improving code readability, scalability, and maintainability, and streamlining developer onboarding with high-level documentation.

Contributed to full-stack development, focusing on mobile app performance, backend architecture, and data collection to enhance user engagement and system efficiency.

• Boosted mobile app conversion rate by 10% through user journey analysis and leveraging Next.js for SEO with server-side rendering via Firebase Cloud Functions, significantly improving performance.
• Re-architected the backend from a monolithic codebase to a modular MVC structure, enhancing scalability and maintainability for future growth.
• Automated Firebase functions deployment and developed a JavaScript web scraper to efficiently extract data from 25 pages in a single request, streamlining data collection processes.

Developed a personal finance management application that automates transaction tracking from emails with custom categories and UPI-based payee identification.