Nextvion Technologies Group

Crafting Digital Excellence

Building production-ready systems for startups and enterprises

Years Experience

10+

Production Projects

Industries

100%

Client Satisfaction

I’m a passionate Full Stack Developer with production experience building scalable systems for companies like UpTye, AIFL, Ignitio, Ignitia Ventures, and various startups across fintech, healthcare, and HR tech domains.

My expertise lies in architecting end-to-end solutions from designing databases and APIs to crafting pixel-perfect user interfaces. I specialize in building high-performance systems with modern tech stacks including MERN, Next.js, Flutter, and microservices architecture.

I'm driven by clean architecture, performance optimization, and delivering exceptional user experiences. Whether it's a complex HRMS platform, a real-time SaaS application, or a mobile app, I bring a product-first mindset to every project.

What I Bring to the Table

End-to-end system architecture & development

Performance optimization & scalability

Modern UX/UI implementation

Security-first approach with JWT & OAuth

Clean code & maintainable architecture

Real-time features with WebSockets & Redis

Production Projects

Real-world solutions built for startups and enterprises

UpTye Platform

Led development of a comprehensive business management platform with real-time analytics, team collaboration tools, and advanced project tracking.

Serving 500+ users with 99.9% uptime

Next.jsNode.jsMongoDBRedisAWS S3

Live Demo

Ignitia Ventures Platform

Startup incubation platform connecting investors with entrepreneurs, featuring pitch management, portfolio tracking, and investor matchmaking algorithms.

Facilitated $2M+ in funding connections

ReactNode.jsMongoDBWebSocketsStripe

Live Demo

Ignitio

Next.js-based healthcare management system with appointment scheduling, patient records, telemedicine integration, and real-time notifications.

Managing 1000+ patient records

Next.jsTypeScriptMySQLRedisTwilio API

Live Demo

Finance Tracker App

Personal finance management application with expense tracking, budget planning, investment portfolio monitoring, and AI-powered insights.

Helped users save $500K+ collectively

React NativeNode.jsMongoDBChart.jsRazorpay

Live Demo

HRMS System

Full-stack HRMS with attendance tracking, leave management, payroll processing, and employee performance analytics. Built with Flask backend and React Native mobile app.

Reduced HR processing time by 60%

FlaskReact NativePostgreSQLJWTDocker

Live Demo

Project Scanner Pro

Flutter-based mobile application for real-time project scanning, document management, and OCR capabilities with cloud synchronization.

10,000+ scans processed monthly

FlutterDartFirebaseML KitCloud Storage

Live Demo

5-Star Client Success Stories

Proven Track Record of Exceptional Results

100% job completion rate with 5-star ratings across all projects. Here's how I've helped businesses achieve their goals.

50+

Projects Completed

100%

Client Satisfaction

5.0★

Average Rating

85%

Repeat Clients

Technology

AI-Powered SaaS Platform

TechStartup Inc.

Budget

$25,000

Duration

3 months

Team

2 developers

Challenge

The client needed a scalable SaaS platform with AI-powered features that could handle rapid user growth while maintaining excellent performance.

Solution

Built a modern, serverless architecture using Next.js 14 with server-side rendering, integrated OpenAI API for intelligent features, and implemented Redis caching for optimal performance.

Technologies Used

Next.jsTypeScriptPostgreSQLAWSOpenAI API

<200ms

Response Time

4.9/5

User Satisfaction

40%

Cost Reduction

Lighthouse Score

"Manish delivered beyond expectations. The platform is lightning-fast, scales effortlessly, and our users love the AI features. Best investment we made!"

Sarah Johnson

CEO, TechStartup Inc.

Healthcare

Cross-Platform Mobile App

HealthCare Solutions

Budget

$18,000

Duration

2 months

Team

2 developers

Challenge

Healthcare provider needed a HIPAA-compliant mobile app for patient management with real-time communication features.

Solution

Developed a secure Flutter application with end-to-end encryption, real-time notifications, and offline-first architecture for reliability.

Technologies Used

FlutterFirebaseNode.jsMongoDBSocket.io

60 FPS

App Performance

A+

Security Score

0.01%

Crash Rate

1.2s

Load Time

"Working with Manish was a pleasure. He understood our compliance requirements and delivered a robust, secure application that our patients love."

Dr. Michael Chen

Director, HealthCare Solutions

Retail

Full Stack E-Commerce Platform

E-Commerce Global

Budget

$30,000

Duration

4 months

Team

3 developers

Challenge

Large-scale e-commerce platform needed to handle high traffic during sales events while maintaining fast checkout experience.

Solution

Implemented microservices architecture with load balancing, Redis caching, and optimized database queries. Integrated Stripe for seamless payments.

Technologies Used

ReactNode.jsMongoDBRedisAWSStripe

1.5s

Page Speed

8.5%

Conversion Rate

65%

Cart Recovery

SEO Score

"Our revenue tripled after launching this platform. Manish's expertise in scaling and performance optimization was invaluable. Highly recommended!"

Robert Williams

CTO, E-Commerce Global

User Engagement & UX Focus

Creating exceptional experiences through technical excellence

Performance Optimization

Lightning-fast load times with code splitting and lazy loading

< 2s load time

SEO Ready

Server-side rendering and metadata optimization for search engines

95+ SEO score

Responsive Design

Pixel-perfect interfaces across all devices and screen sizes

100% mobile-first

Caching Strategy

Redis integration for blazing-fast data retrieval and API responses

10x faster queries

Auth Systems

Secure authentication with JWT, OAuth, and role-based access control

Bank-grade security

Smooth Animations

Delightful micro-interactions and transitions using Motion

60 FPS animations

Real-time Features

WebSocket integration for live updates and collaborative features

Instant sync

User-First Workflows

Intuitive UX design with accessibility and usability in focus

WCAG compliant

Every line of code is crafted with performance, security, and user experience in mind.

5.0 Perfect Rating

Client Success Stories

Real feedback from clients who trusted us with their projects on Freelancer.com

"Go to person for website development, very good at Next.JS. Manish has explained me in detail about the pro and cons of Next.js and delivered the project on time. Great working with him and would like to hire him again. Thank you."

Dr.I Vishnupriya

Founder and CEO Ignitio

Project

Ignitio "The company’s official platform,"

Freelancer.com

"Best developer I've worked with! Created a beautiful Webiste and mobile app with Next.js and React Native. The code quality is exceptional and communication was excellent throughout."

Dr Aishwarya

Founder, Chiro-wellness

Project

Chiro-wellness Website and Mobile App

Freelancer.com

"Incredible expertise in full stack development. Our web platform is fast, scalable, and exactly what we envisioned. The attention to detail is remarkable!"

Arvind Kajaria

CEO, Ignitia Ventures

Project

Full Stack Platform

Freelancer.com

"Exceptional problem solver. Integrated complex cloud architecture seamlessly. The performance improvements were beyond our expectations. Highly recommended!"

David Kim

CTO, DataFlow Systems

Project

Cloud Infrastructure

Freelancer.com

Want to be our next success story?

Start Your Project

Let's Build Something
Powerful Together

Have a project in mind? Let's discuss how we can work together

Available for freelance & full-time opportunities

manishkumardev1307@gmail.com

Phone

+91 7547004600

Location

India

Connect with me

Why work with me?

✓Fast turnaround & reliable communication
✓Production-ready, scalable code
✓Modern tech stack expertise

Building Scalable,High-PerformanceDigital Products

Proven Track Record of Excellence

Crafting Digital Excellence

What I Bring to the Table

Skills & Expertise

Frontend

Backend

Mobile Apps

Database & Cloud

Tools & APIs

CMS & E-commerce

Production Projects

UpTye Platform

Ignitia Ventures Platform

Ignitio

Finance Tracker App

HRMS System

Project Scanner Pro

Proven Track Record of Exceptional Results

AI-Powered SaaS Platform

Challenge

Solution

Technologies Used

Cross-Platform Mobile App

Challenge

Solution

Technologies Used

Full Stack E-Commerce Platform

Challenge

Solution

Technologies Used

User Engagement & UX Focus

Performance Optimization

SEO Ready

Responsive Design

Caching Strategy

Auth Systems

Smooth Animations

Real-time Features

User-First Workflows

Client Success Stories

Let's Build Something Extraordinary

Let's Build SomethingPowerful Together

Connect with me

Why work with me?

Building Scalable,
High-Performance
Digital Products

Proven Track Record of
Excellence

Let's Build Something
Powerful Together