I will develop a custom full stack saas web app with authentication, user roles and API


About this gig
Build a Professional, Scalable & Secure SaaS Web Application
Looking for an experienced developer to transform your idea or existing source code into a modern SaaS platform?
You're in the right place.
I specialize in developing custom full-stack SaaS applications with clean architecture, secure authentication, role-based access control (RBAC), API integrations, admin dashboards, automation, and scalable backend systems.
Whether you already have source code, a UI design, a GitHub repository, or a partially completed project, I can enhance, customize, extend, or complete your application professionally.
Services I Offer
Full SaaS Web Application Development
Authentication Systems
- Email & Password Login
- Social Login
- Magic Links
- Multi-factor Authentication (MFA)
- Password Reset
- Session Management
Role-Based Access Control (RBAC)
- Super Admin
- Admin
- Manager
- Staff
- Customer
- Custom Roles & Permissions
API Integration
- REST APIs
- GraphQL APIs
- Third-party APIs
- AI APIs
- Payment APIs
- CRM Integrations
- Email Services
- SMS Services
- Maps
- Analytics
- Webhooks
Admin Dashboard Development
User Dashboard Development
Multi-Tenant SaaS Architecture
Database Design & Optimization
Subscription & Billing Integratio
Get to know Max Khalif
- FromIndia
- Member sinceFeb 2023
- Avg. response time3 hours
- Last delivery2 years
Languages
English, Hindi, Gujarati, German
FAQ
Can you work with my existing source code?
Yes. I can customize, refactor, optimize, debug, or extend your existing project. But will not gurantee, discuss with me before payment
Can you build a SaaS from scratch?
Absolutely. I can build the entire application from planning to deployment.
Which authentication systems do you support?
Email login, Google, GitHub, Microsoft, Apple, Magic Links, OTP, MFA, JWT, OAuth, Session Authentication and custom authentication.
Can you implement user roles?
Yes. I can implement complete Role-Based Access Control (RBAC) with custom permissions.
Which APIs can you integrate?
Almost any REST or GraphQL API including Stripe, PayPal, OpenAI, Gemini, CRM systems, payment gateways, email providers, SMS services, cloud storage, analytics, shipping providers, and custom APIs.. We will need the API from your end.
Can you integrate AI?
Yes. I can integrate AI chatbots, AI assistants, OpenAI, Gemini, Claude and other LLM APIs. Discuss before we Proceed
Can you deploy the project?
I will guide you through the deployment process and provide all the necessary instructions. I can assist with deployment on Vercel, Netlify, AWS, DigitalOcean, Azure, Render, Railway, VPS, or your preferred hosting provider, but the final deployment will be completed by you using your own hosting ac
Do you provide documentation?
Yes. Every project includes clean documentation for future maintenance.
Will my code remain confidential?
Absolutely. Your project and source code remain private and confidential.We will handover the source code and will delete all the files from our end after 15 days from completion
Should I contact you before ordering?
Yes. Please message me first so I can understand your requirements and recommend the best package.

