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vinaykumar4200

Vinay kumar

@vinaykumar4200

TAGLINE: Full Stack Web Developer Nodejs Nextjs SaaS Architect

India
Inglese, Hindi
Alcune informazioni sono riportate in lingua inglese.
Chi sono
I'm Vinay Kumar, a Full Stack Web & Mobile Developer with 5+ years of experience shipping production apps — including backend systems for a live crypto exchange handling real transactions. I work across React, Next.js, React Native, Node.js, and Tailwind CSS: frontend UI, backend APIs, auth, databases, and deployment. Security and reliability come first for me, not as an afterthought. I take full ownership of projects end-to-end and communicate clearly at every stage, so you always know exactly where your product stands. Let's build something reliable.... Continua a leggere

Competenze

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vinaykumar4200
Vinay kumar
offline • 
Tempo di risposta medio: 1 ora

Consulta i miei servizi

Applicazioni web full stack
I will build nextjs reactjs and fullstack custom saas applications
A partire da5 USD / progettoMaggiori dettagli
Correzione di bug
I will fix bugs in nodejs reactjs nextjs and performance optimization
A partire da15 USD / progettoMaggiori dettagli

Portfolio

Esperienza lavorativa

Freelancing_Career

Lead Full Stack Developer

Freelancing Career • Lavoratore autonomo

Dec 2023 - Present • 2 yrs 8 mos

Led design and maintenance of live production applications. Responsibilities: Architected and maintained full-stack applications in active production use Led technical decisions on system design, scalability, and code structure Built and maintained REST APIs and backend services using Node.js Developed responsive, performant frontend interfaces with React/Next.js Managed deployment pipelines and monitored live application health Coordinated with stakeholders to translate business requirements into technical solutions

MERN Stack Developer

NXTGEN • Full time

Sep 2021 - Dec 2023 • 2 yrs 3 mos

Product-based company. Designed and secured the backend for BITDENEX, a live cryptocurrency exchange platform accessible via browser and mobile. Responsibilities: Designed and implemented secure backend architecture for a live financial trading platform Built authentication, authorization, and transaction-handling systems for a crypto exchange Developed and maintained REST APIs powering both web and mobile clients Implemented security best practices for handling sensitive financial data Worked with MongoDB for scalable data storage and retrieval Collaborated with frontend and mobile teams to ensure consistent cross-platform functionality