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Senior software engineer with 6+ years of experience building scalable product systems across frontend and full-stack environments. Strong expertise in React, TypeScript, Next.js, frontend & backend architecture, and performance optimization, with hands-on experience in Node.js, PostgreSQL, MongoDB, AWS, and API-driven systems. Experienced in designing scalable architectures, real-time systems, and AI-powered workflows—delivering end-to-end enterprise and high-scale consumer products with a strong product engineering mindset focused on ownership, usability, and measurable impact.…Senior software engineer with 6+ years of experience building scalable product systems across frontend and full-stack environments. Strong expertise in React, TypeScript, Next.js, frontend & backend architecture, and performance optimization, with hands-on experience in Node.js, PostgreSQL, MongoDB, AWS, and API-driven systems. Experienced in designing scalable architectures, real-time systems, and AI-powered workflows—delivering end-to-end enterprise and high-scale consumer products with a strong product engineering mindset focused on ownership, usability, and measurable impact.

Ujjwal Singh

Front-End Developer, Web Developer, UI Designer, +5

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Senior software engineer with 6+ years of experience building scalable product systems across frontend and full-stack environments. Strong expertise in React, TypeScript, Next.js, frontend & backend architecture, and performance optimization, with hands-on experience in Node.js, PostgreSQL, MongoDB, AWS, and API-driven systems. Experienced in designing scalable architectures, real-time systems, and AI-powered workflows—delivering end-to-end enterprise and high-scale consumer products with a strong product engineering mindset focused on ownership, usability, and measurable impact.…Senior software engineer with 6+ years of experience building scalable product systems across frontend and full-stack environments. Strong expertise in React, TypeScript, Next.js, frontend & backend architecture, and performance optimization, with hands-on experience in Node.js, PostgreSQL, MongoDB, AWS, and API-driven systems. Experienced in designing scalable architectures, real-time systems, and AI-powered workflows—delivering end-to-end enterprise and high-scale consumer products with a strong product engineering mindset focused on ownership, usability, and measurable impact.

Available to hire

Senior software engineer with 6+ years of experience building scalable product systems across frontend and full-stack environments. Strong expertise in React, TypeScript, Next.js, frontend & backend architecture, and performance optimization, with hands-on experience in Node.js, PostgreSQL, MongoDB, AWS, and API-driven systems.

Experienced in designing scalable architectures, real-time systems, and AI-powered workflows—delivering end-to-end enterprise and high-scale consumer products with a strong product engineering mindset focused on ownership, usability, and measurable impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Hindi

Intermediate

Work Experience

Senior Software Engineer at Papaya Global

February 2, 2024 - Present

Led React + TypeScript frontend architecture across multiple projects, driving technical decisions, mentoring engineers, and improving frontend scalability. Built AI-powered support platform integrating frontend workflows, APIs, and automation for 40K+ users, reducing support workload by ~95%. Architected and scaled a micro frontend platform (15+ applications) using Module Federation, enabling independent deployments and improved engineering scalability. Built high-performance real-time chat system handling 10K+ messages with optimized rendering and scalable frontend patterns. Built internal frontend libraries including event-driven systems and declarative analytics to improve scalability and developer productivity.

Senior Frontend Engineer (SDE 2) at Papaya Global

February 1, 2024 - Present

Led frontend development across multiple projects, mentored engineers, and drove architecture decisions across teams in India. Built AI-powered support platform for 40K+ users, reducing ticket load by approximately 95%. Implemented a real-time chat system (10K+ messages) with optimized rendering. Migrated from Angular to React to improve maintainability and developer productivity.

Cash Flow

February 2, 2023 - February 1, 2024

Designed organization-wide micro frontend architecture using Single-SPA. Led Angular to React migration to improve maintainability and developer productivity. Built scalable enterprise finance/payment workflows and internal platform features for business users. Reduced page load time by ~25% and built reusable component systems using Storybook.

Software Development Engineer II at Cash Flo

February 2, 2023 - February 2, 2024

Led React + TypeScript frontend architecture across multiple projects, driving technical decisions, mentoring engineers, and improving frontend scalability. Built internal tooling and reusable components to accelerate development across teams.

Software Engineer at PharmEasy

October 1, 2021 - January 31, 2023

Developed critical homepage and checkout experiences serving ~1M+ daily users. Reduced redundant API calls by ~30% improving performance and UX.

Software Engineer at Shop X (10i Commerce)

January 1, 2021 - September 1, 2021

Built and optimized micro frontend-based retail applications and consumer-facing web views. Improved performance and reliability of frontend systems.

Software Engineer at ShopX (10i Commerce)

January 1, 2021 - September 30, 2021

Built and optimized micro frontend-based retailer applications and consumer-facing web views. Improved performance and reliability of frontend systems.

Software Development Engineer I at Rento Mojo

February 1, 2020 - January 31, 2021

Built backend services using Fastify and LoopBack for internal tools and operational workflows. Contributed to internal tools and admin systems.

Intern at Rento Mjojo

August 1, 2019 - January 1, 2021

Built CX dashboard (React + NestJS) used by 500+ agents. Built backend APIs and internal services using Fastify and LoopBack for operational workflows and admin tooling. Contributed to internal tools and admin systems.

Intern at Rento Mojo

August 1, 2019 - January 31, 2020

Built CX dashboard (React + NestJS) used by 500+ agents.

Frontend Development Intern at Olca academy

November 1, 2018 - January 1, 2019

Built responsive UI components using HTML, CSS, and JavaScript. Gained early frontend experience and web fundamentals.

Frontend Development Intern at Olcademy

November 1, 2018 - January 31, 2019

Built responsive UI components using HTML, CSS, and JavaScript; gained early frontend experience and web fundamentals.