I will build a scalable mvp saas app from 0 to 1 using mern, nextjs, nestjs

H
harshgoel820
H
harshgoel820
Harsh Goel
5.0
5.0

About this gig

SaaS Builder | Startup MVP Expert | Admin Dashboard Specialist | Secure API Engineer


I build scalable, production-ready SaaS applications using Next.js, React, and NestJS, focused on performance, security, and clean architecture. From idea to launch, I help startups and businesses turn concepts into reliable, high-quality products.

I specialize in admin panels, analytics dashboards, and multi-tenant SaaS systems, with smooth filtering, reusable UI components, and modern UX. My backend systems follow API-first design, secure authentication, and role-based access control (RBAC) to ensure safety and scalability.


What I deliver:

Responsive frontend (Next.js / React)

Robust backend (NestJS / Node.js)

Secure auth & authorization

REST APIs with Swagger docs

MongoDB & scalable data models

Clean, modular, maintainable code


Advanced features:

Zod validation, React Hook Form, TanStack Query, shadcn/ui, jsPDF (PDFs & invoices), Zapier automations, Sentry error tracking, idempotent APIs, and Git-based quality checks.


If you need a startup MVP, admin dashboard, or full SaaS platform, I'll deliver a polished, scalable solution built with modern engineering best practices.

Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Harsh Goel

Harsh Goel

Full Stack Developer building web and mobile AI powered applications

5.0(11)
  • FromIndia
  • Member sinceOct 2022
  • Avg. response time1 hour
  • Last delivery3 months
  • Languages

    Hindi, Punjabi, English
• We are a team of 3 Full-Stack Developers building scalable, modern, AI-powered web applications • Experienced with Next.js, React, NestJS, and Node.js for robust frontend & backend development • Strong focus on performance, clean architecture, scalability, and maintainable code • Built AI-driven products, including RAG systems and intelligent chatbots for real-world use cases • Hands-on experience with DevOps, CI/CD pipelines, and AWS deployments • We believe in clear communication, practical solutions, structured development processes, and on-time delivery

My Portfolio

Reviews

3 reviews for this Gig
5.0

(3)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • S
    image-docs

    seotech5

    IN

    India

    5

    Harsh did an outstanding job and completed the project exactly according to my requirements. Communication was clear throughout the process and delivery was on time. I highly recommend Harsh, will work again in future.

    $100-$200

    Price

    2 months

    Duration

    Helpful?
    Yes
    No
  • N

    nyaruita

    KE

    Kenya

    5

    Working with Harsh was an absolute pleasure. As a Node.js developer, his attention to detail and technical expertise are top-tier. He isn’t just a developer who follows instructions; he actively adds ideas and value to the project, often suggesting better ways to optimize the backend. He works incredibly...

    $100-$200

    Price

    3 days

    Duration

    Helpful?
    Yes
    No
  • S
    image-docs

    seotech5

    IN

    India

    5

    It was a pleasure working with Harsh. We truly appreciate his timely delivery and attention to detail. Looking forward to working with him again in the future. Highly recommended for anyone seeking quality and dependable service. Thank you, Harsh, for the great collaboration!"

    Up to $50

    Price

    2 days

    Duration

    Helpful?
    Yes
    No
Reviews

3 reviews for this Gig
5.0

(3)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • S
    image-docs

    seotech5

    IN

    India

    5

    Harsh did an outstanding job and completed the project exactly according to my requirements. Communication was clear throughout the process and delivery was on time. I highly recommend Harsh, will work again in future.

    $100-$200

    Price

    2 months

    Duration

    Helpful?
    Yes
    No
  • N

    nyaruita

    KE

    Kenya

    5

    Working with Harsh was an absolute pleasure. As a Node.js developer, his attention to detail and technical expertise are top-tier. He isn’t just a developer who follows instructions; he actively adds ideas and value to the project, often suggesting better ways to optimize the backend. He works incredibly...

    $100-$200

    Price

    3 days

    Duration

    Helpful?
    Yes
    No
  • S
    image-docs

    seotech5

    IN

    India

    5

    It was a pleasure working with Harsh. We truly appreciate his timely delivery and attention to detail. Looking forward to working with him again in the future. Highly recommended for anyone seeking quality and dependable service. Thank you, Harsh, for the great collaboration!"

    Up to $50

    Price

    2 days

    Duration

    Helpful?
    Yes
    No