SSO Integration for Web and Mobile

@Microlent

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in Android, Mobile App Development, PHP, Web Application, Web Development, C# Programming As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen

@shivmirthyusl

Hi, As an established web and mobile app development company with over 19 years of experience, my team at IT Flex Solutions India has a deep understanding of the technical requirements you need for your SSO integration project. We have successfully delivered 483+ projects, showcasing our expertise in building secure and dynamic web applications, which will prove invaluable in implementing the SSO functionality for both your web and mobile apps. We have a strong background in authentication protocols including OAuth, SAML, and OpenID Connect. This ensures we can handle the initial focus on integrating Microsoft Entra ID, and future-proofing your system by enabling easy expansion to other identity providers like Google and Facebook. Our priority is to guarantee both secure authentication and a seamless user experience; values we live by and are consistently met on all our projects. Even though we are not UK-based, rest assured that we have collaborated with clients globally and are highly proficient at managing remote projects. Our dedicated team of 40+ experienced professionals ensures prompt support throughout the project lifecycle. Choose IT Flex Solutions India for your SSO integration project and benefit from our scalable, innovative solutions that turn ideas into digital solutions that truly impact business growth. Thanks, SBM

@corpmember29

HEY YOUR BIGGEST ADVANTAGE ISN’T ADDING MORE PEOPLE—IT’S ADDING THE RIGHT TECHNICAL TALENT THAT BECOMES A PRODUCTIVE EXTENSION OF YOUR TEAM FROM DAY ONE. I have 12 years of IT experience and have worked across AI, blockchain, web, mobile, cloud, backend, DevOps, QA and modern software technologies. I understand you need reliable offshore resources who can scale your team without compromising delivery quality, communication or cost efficiency. I can provide the right developers based on your exact requirements—Full-Stack, Frontend, Backend, Mobile, AI/ML, Blockchain, DevOps, QA or UI/UX. The workflow is simple: **understand your technical needs → identify the required expertise → integrate resources with your team → follow your processes → deliver with regular communication and measurable progress.** Whether you need one specialist or a dedicated team, I can support both short-term development and long-term collaboration while maintaining clear ownership, documentation and accountability. My cross-technology experience helps me quickly understand existing systems, business goals and technical gaps, so you receive productive talent rather than generic resources. Let’s connect for a quick call to discuss your current team, technology stack and skill requirements. I’ll suggest the most suitable staffing model and resources for your goals. THANKS CHRISTINA

@starttechno

I’d start by implementing OpenID Connect with Google or Microsoft as the first identity provider, then connect the same authentication flow to your web and mobile clients. I’ll handle authorization-code/token validation on the backend, secure session or JWT management, mobile redirect/deep-link handling, logout, and clear error states so users get one consistent sign-in experience without exposing tokens. You’ll receive a working SSO integration for one provider across both platforms, including the required configuration and protected application routes, delivered in 4 days. The implementation can be structured to add Facebook or SAML later without replacing the core authentication flow. Should the first provider be Google or Microsoft? Muhammad Saad

@sharmarahulraman

Hi, I can implement secure SSO authentication for your web and mobile applications, with integration through providers such as Google or Microsoft using OAuth 2.0 / OpenID Connect. I’ll handle the complete authentication flow, secure token/session management, redirects, logout, account linking where required, mobile security considerations, testing, and documentation. I can review your current web/mobile authentication architecture and recommend the most suitable SSO approach before implementation. Best regards

@techplusintl

★★★ SSO IMPLEMENTATION SPECIALIST ★★★ Hi, To implement Microsoft Entra ID as the initial SSO provider across your web and mobile applications, I can structure the authentication layer around OpenID Connect so additional identity providers can be introduced later without coupling the application to Entra-specific login logic. I will handle the Entra ID integration across the existing web and mobile authentication flows, including token handling, callback/redirect logic, session management, and the provider configuration required by each platform. Where SAML or OAuth is appropriate for a specific provider, I will keep that integration separate from the application's core authentication flow. I will test the complete login and logout flows across both platforms and verify token, redirect, and authentication failure scenarios before handover. To get started, I will need access to the current authentication implementation, application repositories, and any existing identity-provider configuration or documentation. Thanks!

@ranjika08

Greetings, I am a Full Stack Developer specializing in enterprise authentication systems and SSO implementation across web and mobile platforms. I'll integrate Microsoft Entra ID as your primary identity provider with secure OAuth 2.0 and OpenID Connect protocols, delivering seamless single sign-on for both web and mobile applications. I'll architect the system for future expansion to Google, Facebook and additional providers while maintaining enterprise-grade security throughout. I'll implement secure token management, session handling, and role-based access controls that protect user data and streamline the authentication experience. The integration will be transparent to end-users while providing your team with centralized identity management and audit capabilities. What's your current technology stack for your web and mobile applications, and do you have existing user bases that need migration to the new SSO system? Better we do a quick chat to ensure few things about the task. Ping me when you're available.

@vladang

Microsoft Entra ID should share one identity flow without exposing tokens across your web and mobile apps. I’d map the current login and account-linking rules, then configure separate Entra clients for web and mobile. For OIDC, I’d use Authorization Code with PKCE, validate issuer, audience, and nonce server-side, and keep mobile tokens in secure OS storage. I’d also isolate provider claims so Google or Facebook can be added without changing your user model. The first milestone can be working Entra sign-in on one web flow and one mobile test build within three days of tenant and code access, released only when both work. I’m based in Serbia (GMT+2) with full UK working-hour overlap. Do existing users need their Entra identity linked to current accounts, or will SSO create new accounts?

@Herculesz

Hi, Implementing secure and seamless SSO across web and mobile requires careful orchestration between authentication protocols and client platforms. The main engineering challenge here is ensuring consistent, secure token handling and session management across diverse environments while integrating with Microsoft Entra ID. I typically design SSO architectures by separating authentication flows from application logic, enabling scalability and maintainability. This approach also facilitates future expansion to additional identity providers without disrupting core services. Given the focus on OAuth, SAML, and OpenID Connect, I would first validate token exchange and refresh mechanisms to minimize latency and avoid user friction. Secure storage and transmission of tokens on mobile devices will be a key consideration. Systems like this must be built for long-term production use, with robust error handling and fallback strategies for authentication failures. I can outline the authentication flow and session orchestration for your web and mobile apps to ensure a secure and smooth user experience. Thanks, Hercules

@efanntyo

Hi there, I am excited to submit my proposal for your SSO Integration project. With extensive experience in developing secure authentication solutions for both web and mobile platforms, I am confident in my ability to deliver a seamless Single Sign-On experience for your users. Understanding your key requirements, I have a solid track record in integrating with major identity providers like Google, Microsoft, and Facebook, utilizing OAuth, SAML, and OpenID Connect protocols. My approach ensures not only a secure and robust authentication mechanism but also an intuitive user experience that enhances engagement across your applications. I prioritize security and user-friendliness by implementing best practices in authentication and encryption. My previous projects have involved working closely with both PHP and C# environments, and I have developed solutions that cater to Android mobile applications, ensuring compatibility and reliability across different platforms. For your project, I propose a phased approach, starting with a comprehensive analysis of your existing systems, followed by the design and integration of the SSO solution, ensuring thorough testing for security and functionality at each stage. I am committed to collaborating with your team to tailor the solution to your specific needs and providing documentation and support post-implementation. I look forward to the opportunity to work with you on this important project. Best Regards,

@eliaa

Hello, I see you're aiming to implement SSO across both web and mobile platforms. Synchronizing authentication states between web sessions and Flutter-based mobile apps can be tricky. With over 10 years in Laravel backend and Flutter mobile development, Smart Sols is well-equipped to create seamless SSO experiences. Which identity providers or protocols are you planning to use for the SSO integration? Let's connect and make your SSO integration effortless.

@vishal1145

Your Microsoft Entra ID integration will fail user acceptance testing if session tokens aren't synchronized across web and mobile - I've seen this break production rollouts when mobile apps cache stale credentials after web logout. Quick questions - are you planning token refresh intervals under 15 minutes to meet enterprise security policies? And does your mobile app need offline authentication fallback for disconnected users? Here is the architectural approach: - OAUTH/OPENID CONNECT: Implement PKCE flow for mobile to prevent token interception and standard authorization code flow for web with secure token storage. - MICROSOFT ENTRA ID: Configure conditional access policies and multi-tenant support so enterprise clients can enforce their own MFA requirements without custom code. - CROSS-PLATFORM SESSION MANAGEMENT: Build centralized token validation service that syncs logout events across all devices within 2 seconds using webhooks. I've implemented SSO for 4 healthcare SaaS platforms that required HIPAA-compliant authentication across iOS, Android, and web. Let's schedule a 20-minute technical call to review your token lifecycle architecture before implementation starts.

@naminghn

Hi there, I can efficiently implement SSO functionality for your web and mobile applications, ensuring secure authentication and a seamless user experience. My experience working with OAuth and other authentication protocols positions me to effectively integrate with identity providers like Google or Microsoft as needed. Your satisfaction is my priority and I guarantee that I will deliver you a high-quality result. Regards, Ali

@AnumFatima210

Hi, I went through your project details and understand what you're looking to achieve. I'd be interested in working with you on this. Based on the requirements you've shared, I can handle the project from start to completion while keeping the work aligned with your expectations, timeline, and desired outcome. My approach is straightforward: first, I'll make sure the requirements and expected deliverables are clear. Then I'll complete the work in structured stages, share progress along the way, incorporate your feedback, and deliver the final work after everything has been reviewed. Before we begin, I have a couple of questions about your requirements that will help me understand the scope more accurately. Feel free to message me so we can discuss the details and determine the best way to move forward. Best regards, Anum

@Eliteinno

Hi there, Implementing Single Sign-On (SSO) can often become a challenge when trying to ensure both security and a seamless user experience, especially across different platforms. However, with my extensive experience in authentication protocols like OAuth, SAML, and OpenID Connect, I can streamline this process for your web and mobile applications, ensuring robust security and smooth integration with identity providers like Google or Microsoft. Here are my questions: Could you specify which identity provider you prefer to integrate with? Also, are there any existing authentication systems that we need to consider during the integration? Let's discuss your project now!

@denisSolution

Hi, I'm Denis, a full-stack developer specializing in authentication systems and SSO implementations across web and mobile platforms. I understand your goal: a seamless single authentication flow across your web and mobile apps that reduces friction while maintaining security. The key is managing tokens, sessions, and credential storage transparently to users. I've built similar systems using OAuth 2.0 with providers like Google and Microsoft. The main challenges aren't the integrations themselves, but securing token management on mobile, ensuring reliable refresh logic, and keeping web and mobile sessions in sync without creating security gaps. My approach: 1. Clarify which identity providers you need and which OAuth flow fits your use case 2. Build backend logic for token validation and user provisioning 3. Implement OAuth on web and mobile using platform-specific libraries for secure token storage 4. Test edge cases: token expiration, network interruptions, and cross-platform logout Key questions to discuss upfront: - Do you need SAML support, or is OAuth 2.0 with OpenID Connect sufficient? - Should users logging in on web be automatically authenticated on mobile? - How does your existing user database integrate with the identity provider? These details significantly impact architecture, so let's clarify them early to avoid misalignment. I'm ready to start immediately. Let's connect and discuss. Thanks, Denis.

@flapjakc

Hi, Mateo here, from Toronto. Entra ID SSO across web and mobile usually breaks in one specific spot, token refresh on mobile after the app's been backgrounded for a while, the web session handles it silently but mobile needs its own refresh flow or users get logged out at random, so that's where I'd focus the testing once the initial OAuth flow is working. I see UK-based is your preference, I'm not local but I work UK daytime hours comfortably and I've built OAuth2/OIDC flows before, happy to start with Entra ID exactly as scoped and leave the architecture open for Google or Facebook later without a rework. Looking forward to working with you.

@jayantkumar314

Hi, I’d implement Microsoft Entra ID as the primary identity provider using the appropriate OAuth 2.0/OpenID Connect flow, while keeping the authentication layer extensible for Google or other providers later. I’ll integrate the existing web and mobile applications with secure authorization flows, backend token validation, session handling and consistent account mapping rather than duplicating authentication logic across clients. Mobile authentication will use the appropriate system-browser/redirect flow with secure token storage and reliable callback handling across Android/iOS where applicable. I’ll also cover logout, expired/invalid tokens, account conflicts and authentication failure states, followed by end-to-end testing of the protected application flows. Delivery will include the integration source, configuration guidance and documentation required for maintaining the Entra application registration and adding future identity providers.

@hassanmustafa01

Hello. The hardest part of your SSO integration project is ensuring secure, seamless authentication across both web and mobile platforms while correctly implementing Microsoft Entra ID with OAuth or OpenID Connect. I will: 1. Set up and configure Microsoft Entra ID for your web and mobile apps using OAuth/OpenID Connect. 2. Implement secure token handling and session management tailored to your PHP backend and mobile clients. 3. Test end-to-end authentication flows on both platforms to ensure seamless user experience. 4. Deliver a working MVP with Microsoft Entra ID integration and documentation for adding other providers like Google or Facebook later. I recently completed a similar SSO integration for a PHP web app and Android/iOS mobile clients, resolving token refresh and cross-platform session sync issues. This experience directly addresses your risk of inconsistent user sessions and security gaps. This bid covers Microsoft Entra ID integration only; adding other providers or custom UI enhancements would be extra. No rebuild required—this is a complete integration on your existing stack. Please share your repo or staging environment to start the initial integration. Looking forward to your reply. Best