Raj Bhayani

Full Stack Developer

SaaS, marketplaces, and payment systems
3roles
39skills

About

Senior Full Stack Engineer with 6+ years of experience building scalable SaaS products, real-time marketplaces, and high-volume payment systems.

Experience

Full Stack Developer

FixTman LLC

April 2024 – Present · Remote

Led development of a real-time handyman services marketplace serving 50 U.S. states. Engineered a Stripe Connect payment flow processing over $2M per month, including split payouts, dispute webhooks, and nightly reconciliation. Replaced a legacy polling-based job dispatch system with a real-time event-driven architecture using Socket.io and MongoDB change streams. Built and documented partner APIs for retailers such as Amazon with idempotency keys and zero-downtime reliability. Tech stack: TypeScript, Node.js, Express, MongoDB, React, Next.js, Socket.io, Stripe, AWS.

Full Stack Developer

Techsoftnet Solution

June 2022 – March 2024 · Remote

Designed and implemented a multi-tenant isolation model on MongoDB for a B2B SaaS product, enabling scalable user growth with zero downtime. Replaced unstable cron-based synchronization with a queue-driven worker system using BullMQ and Redis, including dead-letter queues and an automated replay UI for support teams. Tech stack: TypeScript, Node.js, Express, MongoDB, GraphQL, Socket.io, BullMQ, Redis.

Full Stack Developer

Capity Infotech

January 2020 – May 2022 · India

Architected and maintained 15+ MERN applications for diverse SMB clients. Scaled an e-commerce order pipeline to handle 2,000+ daily transactions with idempotency logic on checkout endpoints. Automated CI/CD pipelines using GitHub Actions, reducing deployment errors and enabling zero-downtime releases to EC2. Tech stack: JavaScript, Node.js, Express, MongoDB, React, Stripe, GitHub Actions, AWS.

Skills

JavaScriptTypeScriptHTMLCSSSCSSReactNext.jsReact QueryPlasmoApollo GraphQLTailwindCSSAgoraWebRTCStripeNode.jsExpressPrismaGraphQLTypeGraphQLtRPCSocket.ioFFmpegFirestoreMongoDBSupabaseRedisPostgreSQLAWSEC2S3LambdaSQSDockerNginxVPSGitHub ActionsOpenAI APILangChainpgvector