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I will oauth2 api integration, spring security jwt authentication, rest api, sso login
Andrew J
About this gig
Are you struggling to implement secure authentication or OAuth2 API integration in your application?
Modern apps require secure OAuth2 authentication, JWT authentication, SSO login, and API integration to connect with third party APIs like Google OAuth, Stripe API, Shopify API, and PayPal API. I help businesses build secure and scalable Spring Boot APIs and authentication systems.
Services Offered
- OAuth2 API integration
- Spring Security authentication
- JWT authentication and user login systems
- Google OAuth, Apple, Facebook social login
- SSO and SAML authentication
- Stripe integration and payment gateway setup
- REST API development and webhook integration
- CRM and third party API integration
- Email migration for Google Workspace & Microsoft 365
- API automation with Zapier, Make, and n8n
Tech Stack
Spring Boot, Java Backend, FastAPI, PHP, MERN Stack, Supabase, Firebase, REST API, OAuth2, JWT, Auth0, Active Directory.
Why Choose Me
- Secure authentication architecture
- Clean scalable API development
- Experience with OAuth2, SSO and identity systems
- Reliable communication and support
Message me before placing an order so we can discuss your API integration or authentication project.
Get to know Andrew J
Andrew J
Full Stack Developer!
- FromUnited States
- Member sinceMar 2026
- Avg. response time1 hour
Languages
English, German
I build reliable automation systems, API integrations, and scalable backend solutions to help businesses save time and operate efficiently. Expert in Twilio SMS, WhatsApp API, bulk SMS, IVR systems, REST & custom API development, Zapier, Make, n8n, Python, Node.js, Django, Stripe, Shopify, WordPress API, and AI automation. I deliver secure, high-performance solutions that automate workflows, integrate platforms, and scale businesses.
Other Software Development Services I Offer
FAQ
Can you implement OAuth2 authentication for my application?
Yes. I can implement OAuth2 authentication, JWT authentication, and Spring Security login systems for web apps, mobile apps, and APIs.
Can you integrate Google login or social login?
Absolutely. I can integrate Google OAuth, Apple login, Facebook login, and social authentication using OAuth2 or SAML authentication.
Do you work with third-party API integrations?
Yes. I integrate Stripe API, PayPal API, Shopify API, CRM APIs, and other third party APIs using REST API development and secure authentication.
Can you build secure REST APIs using Spring Boot?
Yes. I specialize in Spring Boot API development, Java backend systems, REST API architecture, and JWT authentication with proper database design.
Can you automate API workflows or webhooks?
Yes. I can create API automation workflows using Zapier, Make (Integromat), n8n automation, and webhook integrations to connect your services.
