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Software Engineer with 5+ years of experience designing, migrating, and optimizing full-stack applications across fintech and high-scale consumer platforms. I specialize in frontend architecture using React, Next.js, and TypeScript, delivering responsive, performant user interfaces and improving maintainability through large-scale refactoring. I have a strong foundation in API design and cloud/DevOps practices, and I work in Agile environments to deliver features within existing product ecosystems—resolving UI inconsistencies, improving performance metrics, and strengthening reliability with testing and observability.…Software Engineer with 5+ years of experience designing, migrating, and optimizing full-stack applications across fintech and high-scale consumer platforms. I specialize in frontend architecture using React, Next.js, and TypeScript, delivering responsive, performant user interfaces and improving maintainability through large-scale refactoring. I have a strong foundation in API design and cloud/DevOps practices, and I work in Agile environments to deliver features within existing product ecosystems—resolving UI inconsistencies, improving performance metrics, and strengthening reliability with testing and observability.

Yaswanth Bellam

Software Engineer, Full Stack Developer, Back-End Developer, +2

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Software Engineer with 5+ years of experience designing, migrating, and optimizing full-stack applications across fintech and high-scale consumer platforms. I specialize in frontend architecture using React, Next.js, and TypeScript, delivering responsive, performant user interfaces and improving maintainability through large-scale refactoring. I have a strong foundation in API design and cloud/DevOps practices, and I work in Agile environments to deliver features within existing product ecosystems—resolving UI inconsistencies, improving performance metrics, and strengthening reliability with testing and observability.…Software Engineer with 5+ years of experience designing, migrating, and optimizing full-stack applications across fintech and high-scale consumer platforms. I specialize in frontend architecture using React, Next.js, and TypeScript, delivering responsive, performant user interfaces and improving maintainability through large-scale refactoring. I have a strong foundation in API design and cloud/DevOps practices, and I work in Agile environments to deliver features within existing product ecosystems—resolving UI inconsistencies, improving performance metrics, and strengthening reliability with testing and observability.

Available to hire

Software Engineer with 5+ years of experience designing, migrating, and optimizing full-stack applications across fintech and high-scale consumer platforms. I specialize in frontend architecture using React, Next.js, and TypeScript, delivering responsive, performant user interfaces and improving maintainability through large-scale refactoring.

I have a strong foundation in API design and cloud/DevOps practices, and I work in Agile environments to deliver features within existing product ecosystems—resolving UI inconsistencies, improving performance metrics, and strengthening reliability with testing and observability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

Javanese

Advanced

Work Experience

Software Engineer at Uber

May 1, 2025 - April 30, 2026

Migrated a high-traffic internal dashboard from a legacy React SPA to Next.js 14 using incremental adoption with a webpack module federation wrapper to maintain feature parity across 120+ components with zero downtime. Built a shared TypeScript + Tailwind component library across 6 teams and improved UI consistency, reducing visual regression issues and handoff time. Optimized Core Web Vitals via SSR for critical pages, dynamic imports for non-essential widgets, and Next.js image optimization, improving LCP and CLS across most sessions. Refactored global state management from Redux to React Query and Context API to reduce boilerplate and initial-load CPU time. Implemented responsive design system with CSS Grid/Flexbox and a custom useMediaQuery hook to resolve layout inconsistencies across multiple screen sizes.

Software Engineer at HSBC

March 1, 2020 - July 31, 2024

Developed and maintained a transaction monitoring platform with React, TypeScript, and Java Spring Boot, enabling real-time visibility into millions of daily transactions. Rebuilt the frontend to support dynamic data tables and advanced filtering, improving analyst review speed. Refactored a 15k-line React monolith into reusable domain components, introduced Storybook, and increased unit test coverage substantially. Implemented OAuth2/JWT authentication with a legacy identity provider, including token refresh via an Axios interceptor, and reduced session-related support tickets. Built a WebSocket notification system for real-time alerts with thousands of concurrent connections, optimizing payload schema and ensuring smooth UX under high-volume events. Migrated the build pipeline from Webpack 4 to Vite and ESLint to reduce CI time and improve code quality checks pre-merge.