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You will get SaaS OAuth Integration Setup | API Authentication & Secure Login

Varun J.Status: Offline
Varun J. Varun J.
4.7
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Varun, priced and ready to go.
Varun J.Status: Offline
Varun J. Varun J.
4.7
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Varun, priced and ready to go.

Project details

I provide secure OAuth integration and API authentication setup for SaaS and web applications. From OAuth provider configuration and developer portal setup to token flow and secure login implementation, I help ensure a smooth, reliable, and production-ready authentication setup.
Programming Languages
HTML & CSS, JavaScript, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security
What's included
Service Tiers Starter
$200
Standard
$500
Advanced
$1,000
Delivery Time 2 days 4 days 6 days
Number of Revisions
123
Number of Pages
111
Design Customization
-
-
-
Content Upload
-
-
-
Responsive Design
-
-
-
Source Code
4.7
29 reviews
83% Complete
(24)
10% Complete
(3)
7% Complete
(2)
1% Complete
(0)
1% Complete
(0)

HM

Harun M.
5.00
Jun 14, 2026
Fix bugs in Next.js + Supabase SaaS (Auth, API, State issues)

SN

Sage N.
5.00
Nov 12, 2025
Education WebApp - Full Stack Development Varun is a fantastic developer. Daily updates were provided, always focused on product driven development, and successfully executed the project. Will consider Varun in the future.

RN

Ronny A N.
5.00
Oct 1, 2024
MS SQL Server Migration Specialist with .NET Development Skills Very skilled developer with great values and collaboration skills.

RN

Ronny A N.
5.00
Jun 25, 2024
MS SQL Server Migration Specialist with .NET Development Skills Very skilled, cooperative and a nice person

DS

David S.
5.00
Apr 30, 2024
Svelte based business locating website Excellent Svelte developer, reasonably priced and great attention to detail
Varun J.Status: Offline

About Varun

Varun J.Status: Offline
SaaS Developer | Fullstack SaaS Developer_React, Next.js & JavaScript
100% Job Success
4.7  (29 reviews)
Panchkula, India - 10:34 am local time
I am a Full Stack SaaS Developer specializing in building scalable, subscription-based SaaS products from concept to launch. I help startups, founders, and businesses transform ideas into production-ready software using React, Next.js, JavaScript, TypeScript, Node.js, PostgreSQL, MongoDB, AWS, and modern cloud technologies.

Over the years, I have helped companies build SaaS applications, customer portals, CRM systems, ERP platforms, marketplaces, AI-powered products, internal business tools, membership platforms, and workflow automation solutions. My expertise covers the complete SaaS development lifecycle from product architecture and MVP development to scaling, optimization, and long-term maintenance.

Whether you're looking to build a new SaaS product, modernize an existing platform, create a customer-facing dashboard, implement subscription billing, or develop a complex multi-tenant application, I can help deliver a secure, scalable, and user-friendly solution.

𝗦𝗮𝗮𝗦 & 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲:

✓ SaaS Product Development
✓ Full Stack Development
✓ Multi-Tenant SaaS Architecture
✓ MVP Development for Startups
✓ B2B SaaS Platforms
✓ B2C SaaS Applications
✓ Enterprise Software Development
✓ Customer Portals & Self-Service Platforms
✓ Subscription-Based Applications
✓ Stripe Billing & Payment Integrations
✓ REST API & GraphQL Development
✓ Authentication & Authorization Systems
✓ Role-Based Access Control (RBAC)
✓ Admin Dashboards & Analytics Platforms
✓ CRM & ERP Development
✓ Workflow Automation Platforms
✓ AI SaaS Applications
✓ API Integrations & Third-Party Services
✓ Database Architecture & Optimization
✓ Cloud Deployment & DevOps
✓ Performance Optimization & Scalability

𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀:

React.js • Next.js • JavaScript • TypeScript • Node.js • Express.js • NestJS • PostgreSQL • MongoDB • MySQL • Prisma • Supabase • Firebase • AWS • Vercel • Docker • Redis • Tailwind CSS • Material UI • Stripe • OpenAI API • Anthropic Claude API • REST APIs • GraphQL

I focus on building software that not only works but is designed for growth, scalability, maintainability, and business success. My goal is to become a long-term technology partner for startups and businesses looking to build world-class SaaS products.

𝗦𝗲𝗮𝗿𝗰𝗵 𝗺𝗲 𝘂𝘀𝗶𝗻𝗴 𝗸𝗲𝘆𝘄𝗼𝗿𝗱𝘀:

SaaS Developer, Full Stack SaaS Developer, SaaS Application Developer, SAAS Only, SAAS Development, React Developer, Next.js Developer, JavaScript Developer, TypeScript Developer, Node.js Developer, SaaS Architect, Startup MVP Developer, Software Engineer, Web Application Developer, Product Developer, CRM Developer, ERP Developer, Dashboard Developer, Multi-Tenant SaaS Developer, Subscription Platform Developer, Stripe Integration Expert, API Integration Developer, AI SaaS Developer, Cloud Application Developer, B2B SaaS Developer, SaaS Product Engineer, Full Stack Engineer.

Steps for completing your project

After purchasing the project, send requirements so Varun can start the project.

Delivery time starts when Varun receives requirements from you.

Varun works on your project following the steps below.

Revisions may occur after the delivery date.

Requirements Review

Review OAuth provider requirements, application stack, and developer portal/API access shared by the client.

OAuth Configuration

Configure OAuth provider, redirect URIs, scopes, authentication flow, and required API settings.

Review the work, release payment, and leave feedback to Varun.