You will get a fully functioning SaaS MVP with backend, API & payments
Project details
If you’re building a SaaS or startup and need a real MVP with proper backend architecture, I can help.
I specialize in building production-ready MVPs that include backend logic, database design, authentication, API integrations, and optional Stripe or Paystack payments. My focus is structure, scalability, and clean deployment — not just getting something online.
Many founders build a frontend first using templates or AI tools, then realize they need solid backend systems to support users, payments, and data. That’s where I come in.
You’ll get:
• Clear technical scope before development begins
• Secure backend + database setup
• Clean API integrations
• Cloud deployment configuration
• Structured build process with milestones
I work best with founders who:
• Can clearly define their 3–5 core launch features
• Understand MVP means focused version one
• Want a stable foundation for growth
If you’re ready to launch properly — let’s build it right.
I specialize in building production-ready MVPs that include backend logic, database design, authentication, API integrations, and optional Stripe or Paystack payments. My focus is structure, scalability, and clean deployment — not just getting something online.
Many founders build a frontend first using templates or AI tools, then realize they need solid backend systems to support users, payments, and data. That’s where I come in.
You’ll get:
• Clear technical scope before development begins
• Secure backend + database setup
• Clean API integrations
• Cloud deployment configuration
• Structured build process with milestones
I work best with founders who:
• Can clearly define their 3–5 core launch features
• Understand MVP means focused version one
• Want a stable foundation for growth
If you’re ready to launch properly — let’s build it right.
Programming Languages
HTML & CSS, JavaScript, PythonWhat's included
| Service Tiers |
Starter
$300
|
Standard
$800
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 10 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 3 | 5 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Frequently asked questions
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ST
Sean T.
Feb 7, 2025
Wix Expert Needed For Rush Job Today Fixing a Wix site
DN
Dustin N.
Feb 6, 2025
Need a 3DS credit/ debit Card payment gateway created and implemented on my website. FORCED 3DS!!!
TA
Tyler A.
Dec 7, 2024
Debug Windows Python app built with Cursor
I enjoyed working with Xavier on my project. They were professional, communicative, and delivered great results. I highly recommend them! I've met lots of global freelancers over 15 years and it has been a pleasure working with Xavier. Take the opportunity, if you can!
SS
Sammy S.
Nov 30, 2024
Create event registration form for website
Although we ended up not competing this particular project by mutual agreement, I'm giving him a 5-star rating for a great attitude and being easy to work with.
About Xavier
Backend & SaaS MVP Developer | Stripe & API Integration
38%
Job Success
Durham, United States - 6:34 pm local time
I build backend-powered SaaS MVPs and production-ready web applications with clean architecture, secure authentication, API integrations, and payment systems (Stripe / Paystack).
If you’ve built a frontend but need real backend structure — or you’re a non-technical founder ready to launch properly — I help turn ideas into stable, scalable systems.
I focus on foundations first:
• Backend logic and database design
• Secure auth and user flows
• API integrations and automation
• Payment integration (Stripe, 3DS, Paystack)
• Cloud deployment and production setup
I don’t just “make it work.” I build it in a way that can scale.
⸻
What I Specialize In
• SaaS MVP builds (v1 with clear scope)
• Stripe / Paystack payment integrations
• Webhook debugging and API fixes
• Backend architecture for AI-powered apps
• Deployment to Railway, Vercel, and cloud platforms
I’ve implemented 3DS-secure payment gateways, debugged backend systems built with AI tools, and structured MVPs from scratch for founders preparing to launch.
⸻
Working With Me
• Structured scope before development starts
• Clear timelines and milestone-based builds
• Transparent communication
• Source code always included
I work best with founders who understand that MVP means focused version one — not a full product on day one.
⸻
Getting Started
Send:
• A short product summary
• 3–5 core launch features
• Timeline expectations
I’ll outline a clear technical approach and next steps.
Let’s build it right from the foundation.
— Xavier
Steps for completing your project
After purchasing the project, send requirements so Xavier can start the project.
Delivery time starts when Xavier receives requirements from you.
Xavier works on your project following the steps below.
Revisions may occur after the delivery date.
Scope & Architecture Planning
Confirm requirements, define core features, design database structure, and finalize technical approach.
Backend & Core Feature Development
Build backend logic, authentication, APIs, and core MVP functionality.