I will web app development, saas software developer, full stack website,react next js

Z
zainkmalik
Z
zainkmalik
Zain Malik

Level 2

5.0
5.0

Gig Summary

What people loved about this freelancer

About this gig

Looking for a software developer to build your SaaS product, custom web app development or a full stack website? Our team builds fast, scalable products with React, Next JS, Node.js and PostgreSQL.


What you get:

  • SaaS development with auth, user roles, Stripe subscriptions and admin panels
  • Web app development for dashboards, client portals and internal tools
  • Full stack website with backend, database, APIs and deployment
  • Frontend in React and Next JS, responsive, SEO-ready and built from your Figma
  • Frontend fixes and upgrades for existing React apps


How we work:

  1. You share your SaaS idea or requirements
  2. We lock scope and flag risks before the build starts
  3. Milestone delivery with regular demos
  4. Launch on Vercel or AWS, optimized for Next JS, plus post-launch support


Why clients choose us:

  • Software developer team with 10+ years serving US, UK and EU clients
  • In-house QA and UI/UX on every web app development and full stack website project
  • Clean Frontend code and full handover. You own everything.


Message us before ordering. Our lead software developer will review your project and recommend the right package.

Get to know Zain Malik

Zain Malik

Senior Full Stack AI Developer AI Driven SaaS and Enterprise Custom Systems

5.0(76)

Level 2

  • FromPakistan
  • Member sinceSep 2025
  • Avg. response time2 hours
  • Last delivery4 days
  • Languages

    English, Spanish, French
AI Solutions Architect with 12+ years of experience building scalable, production-ready systems. I lead an in-house team of dedicated developers delivering custom software solutions, AI-driven applications, mobile app development, intelligent automation, SaaS platforms, and enterprise systems. We handle full-cycle development — architecture, web and mobile apps, backend systems, APIs, cloud infrastructure, integrations, and deployment. Experienced in multi-tenant platforms, AI integration, workflow automation, and complex business logic. Let’s build something powerful.

My Portfolio

Reviews

22 reviews for this Gig
5.0

(22)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • R

    rebecasaunders

    US

    United States

    5

    Really happy with the work. I had a long list of ideas, and he helped me focus on the feature that mattered most. He understood the requirements, handled the date logic perfectly, and delivered ahead of schedule. The app feels much more useful now. Great experience and highly recommended!

    $50

    Price

    3 days

    Duration

    Helpful?
    Yes
    No
  • J
    image-docs

    josephhammondd

    GB

    United Kingdom

    5

    Dark mode reset to light on every reload. Fixed fast persists now for both guests and logged-in users (follows me across devices), no flash on load. Clear communication, no wasted words, and he explained the cause plainly (the choice was never being saved). Delivered a day early, and about money, it was great value. Highly recommended.

    $50

    Price

    4 days

    Duration

    Helpful?
    Yes
    No
  • H
    image-docs

    hollyhkerr

    FR

    France

    5

    Our van hire quote calculator had been charging a day short on every short booking and we'd no idea how long it had been happening. He worked out the pattern from four examples I gave him before he'd even seen the code, then found it was a single missing line in one branch of the pricing. Communication...

    $50

    Price

    3 days

    Duration

    Helpful?
    Yes
    No
  • B
    image-docs

    benjaminnturner

    AU

    Australia

    5

    Really impressed with Zain’s work. He understood the issue quickly, explained everything clearly, and kept me updated throughout. I especially appreciated how he took the time to educate me instead of just fixing the problem. He delivered early, was easy to work with, and provided great value. Would definitely recommend him.

    $50

    Price

    4 days

    Duration

    Helpful?
    Yes
    No
  • M
    image-docs

    marvelamasonn

    US

    United States

    5

    Came in thinking this was a tiny fix and found out our search had a security hole I had no idea about. It was explained clearly without making me feel dumb, the scope stayed exactly what we agreed, and it even caught bad data in our SKUs. Super responsive, finished early, and handled the barcode scanner...

    $50

    Price

    3 days

    Duration

    Helpful?
    Yes
    No
Reviews

22 reviews for this Gig
5.0

(22)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • R

    rebecasaunders

    US

    United States

    5

    Really happy with the work. I had a long list of ideas, and he helped me focus on the feature that mattered most. He understood the requirements, handled the date logic perfectly, and delivered ahead of schedule. The app feels much more useful now. Great experience and highly recommended!

    $50

    Price

    3 days

    Duration

    Helpful?
    Yes
    No
  • J
    image-docs

    josephhammondd

    GB

    United Kingdom

    5

    Dark mode reset to light on every reload. Fixed fast persists now for both guests and logged-in users (follows me across devices), no flash on load. Clear communication, no wasted words, and he explained the cause plainly (the choice was never being saved). Delivered a day early, and about money, it was great value. Highly recommended.

    $50

    Price

    4 days

    Duration

    Helpful?
    Yes
    No
  • H
    image-docs

    hollyhkerr

    FR

    France

    5

    Our van hire quote calculator had been charging a day short on every short booking and we'd no idea how long it had been happening. He worked out the pattern from four examples I gave him before he'd even seen the code, then found it was a single missing line in one branch of the pricing. Communication...

    $50

    Price

    3 days

    Duration

    Helpful?
    Yes
    No
  • B
    image-docs

    benjaminnturner

    AU

    Australia

    5

    Really impressed with Zain’s work. He understood the issue quickly, explained everything clearly, and kept me updated throughout. I especially appreciated how he took the time to educate me instead of just fixing the problem. He delivered early, was easy to work with, and provided great value. Would definitely recommend him.

    $50

    Price

    4 days

    Duration

    Helpful?
    Yes
    No
  • M
    image-docs

    marvelamasonn

    US

    United States

    5

    Came in thinking this was a tiny fix and found out our search had a security hole I had no idea about. It was explained clearly without making me feel dumb, the scope stayed exactly what we agreed, and it even caught bad data in our SKUs. Super responsive, finished early, and handled the barcode scanner...

    $50

    Price

    3 days

    Duration

    Helpful?
    Yes
    No