Need NextJS Developer.

I'm seeking an experienced NextJS developer to build a SaaS application. The core functionalities should include:

- User Authentication: Secure login and user management.
- Data Analytics: Insights and reports on user data.
- Payment Processing: Integrate payment gateways for subscriptions.

Ideal skills and experience:
- Proficiency in NextJS and React.
- Experience with authentication systems (OAuth, JWT).
- Strong background in data analytics tools and libraries.
- Familiarity with payment processing APIs (Stripe, PayPal).
- Good understanding of SaaS architecture and best practices.

Please provide examples of similar work done.