Hire the Best Auth0 Professionals

Building a secure SSO (SAML, OAuth, OIDC) and multi-IdP IAM systems for real-world production environments. I help SaaS platforms and enterprises implement enterprise SSO and resolve complex SAML, OAuth, and AD/LDAP across Google, Okta, Entra ID (Azure AD), Keycloak, Auth0 and AWS Cognito with seamless user experience. 🎯 What I Help You Achieve → Implement SSO (SAML / OAuth / OIDC) across Okta, Entra ID, Keycloak, Auth0, AWS → Enable multi-IdP authentication for SaaS platforms → Resolve SSO failures (SAML errors, OAuth callbacks, redirect loops) → Design secure authentication & authorization architectures → Implement SCIM provisioning and lifecycle automation → Support enterprise customer onboarding with SSO (B2B SaaS integrations) 🔐 Core IAM Expertise ✅ SSO / Identity Federation → SAML SSO, OAuth 2.0, OpenID Connect (OIDC) → Multi-IdP integration (Okta, Entra ID, Keycloak, Google, Auth0, AWS) → Enterprise SSO for SaaS (multi-tenant, domain-based login) → Identity federation design and custom authentication flows ✅ Authorization & Access Control → RBAC / ABAC implementation → Fine-grained authorization (OpenFGA, OPA) → Secure API authentication & token validation (JWT lifecycle) → Session management and access policy enforcement ✅ MFA & Security → MFA: OTP, TOTP, WebAuthn, YubiKey, Push → Conditional access & adaptive authentication → Step-up authentication and risk-based flows ✅ User Lifecycle & Provisioning → SCIM 2.0 integrations → AD / LDAP sync → Automated provisioning & deprovisioning → Identity migration and federation transitions ✅ Troubleshooting Complex SSO & OAuth Issues → SAML assertion and metadata issues → OAuth redirect / callback errors → Token validation and session misconfigurations → Infinite redirects, login failures, federation issues 🛠️ Identity Platforms Primary: Okta • Microsoft Entra ID • Keycloak • Auth0 • AWS Cognito • Google Workspace Enterprise: Ping • OneLogin • ForgeRock • IBM Verify • Shibboleth • ADFS • WSO2 Custom / Open Source: Custom SAML SP/IdP • IdentityServer • SimpleSAMLphp • LDAP / RADIUS 🧠 Why Clients Work With Me → Delivered enterprise SSO integrations across 20+ identity providers → Deep expertise in SAML, OAuth, OIDC internals (not just configuration) → Strong debugging capability for complex identity issues → Experience building multi-tenant SaaS authentication systems → Clean, production-ready implementations with documentation ⚙️ Tech Stack Java • Node.js • Python • Golang • TypeScript • .NET • PHP Spring Security • Express • Django • React • Angular SAML2 • OAuth2 • OIDC • JWT • SCIM • MFA • WS-Fed • RBAC AWS • OCI • Docker • Kubernetes • CI/CD 📌 Available for hourly, fixed-rate, and long-term IAM engagements Let’s make identity your strongest layer, secure, scalable, and seamless.

Hi, I'm Ghulam — a React Native + Expo developer building cross-platform mobile apps for iOS and Android since 2021. I help startups, agencies, and product teams ship production-ready apps — from MVP to App Store / Play Store launch — with clean code, scalable architecture, and reliable communication. ━━━━━━━━━━━━━━━━━━━━━━━━━━━ What I do best ━━━━━━━━━━━━━━━━━━━━━━━━━━━ → React Native (CLI + Expo) cross-platform development → iOS and Android publishing (App Store, Play Store, TestFlight, EAS) → Backend integration — NodeJS, Express, NestJS, REST, GraphQL → Authentication — Firebase, Supabase, JWT, OAuth, Apple and Google Sign In → Payments — Stripe, RevenueCat (Apple IAP), Google Pay → Push notifications, deep linking, real-time features (Socket IO) → AI integrations — OpenAI API, chatbots, smart automation → Performance optimization, bug fixing, legacy app rescue → Full-stack web — NextJS, React, ThreeJS, Tailwind, Supabase ━━━━━━━━━━━━━━━━━━━━━━━━━━━ Recent projects ━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✓ Sol Hour — Real-time interactive DJ avatar platform with ThreeJS and React Three Fiber, Supabase auth, and Stripe payments (NextJS full-stack web) ✓ Fenzro — AI-powered business management mobile app with sales tracking, invoicing, and dashboard analytics (React Native + Expo) ✓ Movie Streaming App — Native iOS and Android with custom video player, offline downloads, and subscriptions (React Native) ✓ Full-Stack Marketplace App — Buyer and seller mobile app with in-app chat, payments, and reviews (React Native + NodeJS + MongoDB) ✓ E-Commerce Mobile App — Product catalog, cart, Stripe checkout, and order tracking (React Native + Firebase) ✓ Booking and Appointment App — Calendar integration, push notifications, and real-time scheduling (React Native + Express) ━━━━━━━━━━━━━━━━━━━━━━━━━━━ Why clients work with me ━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⭐ 100% Job Success Score ⭐ 5 out of 5 ratings on every completed project ⭐ Daily updates and clean GitHub commits ⭐ Honest scoping — no over-promising ⭐ Available 30+ hours per week — fast response (under 4 hours) If you have an idea, a half-built app, or a production issue — send a message. I will review your project and tell you honestly if I am the right fit. ━━━━━━━━━━━━━━━━━━━━━━━━━━━ Keywords ━━━━━━━━━━━━━━━━━━━━━━━━━━━ React Native Developer | React Native Expo | iOS Developer | Android Developer | Mobile App Developer | Cross-Platform Developer | TypeScript | JavaScript | NodeJS | Express | MongoDB | Firebase | Supabase | Stripe | RevenueCat | OpenAI API | REST API | GraphQL | ThreeJS | React Three Fiber | NextJS | MVP Developer | Startup App Developer | App Store Deployment | Performance Optimization

I help SaaS platforms and enterprise applications design and implement secure and scalable Single Sign-On (SSO) and authentication systems using SAML, OIDC, OAuth, LDAP, and Kerberos. ✔ 500+ SSO integrations delivered ✔ Enterprise-grade identity systems ✔ Expertise in Auth0, Azure AD, Keycloak, and custom IdP development If your authentication system is critical to your business, I can help design and implement it correctly. I design and build custom Identity Providers (IdPs) and full authentication systems tailored to complex business requirements. If you're facing issues with authentication, SSO setup, or identity provider integration — I can help you design and implement a reliable, production-ready solution. ━━━━━━━━━━━━━━━━━━━ 🎯 I Can Help You With • SAML / OIDC SSO integration • Fixing broken authentication flows • Azure AD / Auth0 / Keycloak setup • Custom Identity Provider (IdP) development • LDAP / Active Directory authentication • Kerberos / SPNEGO (Windows SSO) ━━━━━━━━━━━━━━━━━━━ 🔐 SSO & Identity Expertise • SAML 2.0 (SSO, SLO, metadata, assertions) • OpenID Connect (OIDC) & OAuth 2.0 • Custom Identity Provider (IdP) development • LDAP / Active Directory integration • Kerberos authentication & SPNEGO (Windows Integrated Auth) • Multi-tenant authentication systems • MFA implementation & secure login flows Identity Providers: Auth0, Azure AD, Okta, Keycloak, Shibboleth, ADFS, Google Workspace, OneLogin, WSO2, Apereo CAS, SimpleSAMLphp ━━━━━━━━━━━━━━━━━━━ ☁️ Cloud & Serverless (Supporting Expertise) • AWS Lambda, API Gateway, Firebase, Azure Functions • Scalable backend architecture & microservices • CI/CD pipelines and cloud automation ━━━━━━━━━━━━━━━━━━━ 💻 Application Development (Supporting SSO Integrations) • ASP.NET MVC / .NET • Laravel / PHP • WordPress / CMS platforms I build secure applications with seamless SSO and API integrations. ━━━━━━━━━━━━━━━━━━━ 📱 Mobile Authentication Integration • iOS (Swift) & Android (Kotlin) • Secure login flows (OAuth/OIDC) • Backend + authentication integration ━━━━━━━━━━━━━━━━━━━ 🖥️ DevOps & Infrastructure • AWS, Azure, DigitalOcean • Linux / Windows Server • Nginx, Apache, IIS • SSL, deployment, scaling, and performance optimization ━━━━━━━━━━━━━━━━━━━ 🌟 Why Work With Me • Deep expertise in SSO & authentication systems • Proven experience delivering 500+ SSO integrations across SaaS and enterprise environments • Quick turnaround for SSO integrations and authentication fixes • Ability to build custom IdPs and full authentication flows • Strong enterprise authentication knowledge (LDAP, Kerberos, AD) • End-to-end delivery — from architecture to deployment ━━━━━━━━━━━━━━━━━━━ 💬 Let’s Talk Need help with: • SAML / OIDC SSO integration • Custom Identity Provider (IdP) development • LDAP / Active Directory authentication • Kerberos / SPNEGO setup • Fixing authentication issues • Identity provider setup (Auth0, Azure AD, etc.) Let’s discuss your requirements — I can help you implement a clean and scalable solution.

Software Engineer with solid expertise in front-end development, specializing in React.js, Next.js, and TypeScript. Skilled in building scalable web applications, complex dashboards, and advanced filtering systems using modern frameworks like Refine.dev and Ant Design. Experienced with backend development in Python (FastAPI) and familiar with Node.js, enabling full-stack capabilities. Worked on a wide range of projects, including CRM, HRM, e-commerce, delivery systems, landing pages, and traffic platforms. Passionate about creating efficient user experiences, writing clean and maintainable code, and continuously improving skills in backend development and algorithms.

𝐖𝐞 𝐨𝐟𝐟𝐞𝐫 𝐅𝐑𝐄𝐄 𝐭𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐜𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐚 𝐅𝐑𝐄𝐄 𝐪𝐮𝐢𝐜𝐤 𝐫𝐞𝐯𝐢𝐞𝐰 𝐨𝐟 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭, 𝐚𝐧𝐝 𝐮𝐬𝐮𝐚𝐥𝐥𝐲 𝐫𝐞𝐬𝐩𝐨𝐧𝐝 𝐰𝐢𝐭𝐡𝐢𝐧 𝐚 𝐟𝐞𝐰 𝐡𝐨𝐮𝐫𝐬. We are Teaser Software, an ITO company based in Hanoi, Vietnam. If you’re looking for a reliable team to take your project from idea → design → development → launch → maintenance, while leveraging AI to accelerate development and improve efficiency without compromising quality, you’re in the right place. Whether you already have a detailed specification or just an initial idea, we can help shape it into a clear roadmap with realistic timelines and costs. 𝐋𝐞𝐭’𝐬 𝐜𝐨𝐧𝐧𝐞𝐜𝐭. 𝐉𝐮𝐬𝐭 𝐬𝐞𝐧𝐝 𝐮𝐬 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐚𝐧𝐲𝐭𝐢𝐦𝐞. 𝐖𝐞 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐚𝐜𝐫𝐨𝐬𝐬 𝐦𝐮𝐥𝐭𝐢𝐩𝐥𝐞 𝐭𝐢𝐦𝐞 𝐳𝐨𝐧𝐞𝐬, 𝐬𝐨 𝐨𝐮𝐫 𝐭𝐞𝐚𝐦 𝐢𝐬 𝐚𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝟐𝟒/𝟕, 𝐢𝐧𝐜𝐥𝐮𝐝𝐢𝐧𝐠 𝐰𝐞𝐞𝐤𝐞𝐧𝐝𝐬.

With 14+ years of experience in full-stack web and mobile application development, I help startups and enterprises build scalable, secure, and AI-powered applications from idea to production. I work closely with clients throughout the entire product lifecycle — from requirement analysis and architecture design to UI/UX, development, deployment, and scaling. My experience spans modern JavaScript frameworks, Python-based backends, cloud infrastructure, and AI-driven development workflows, enabling me to deliver solutions that are both technically robust and business-focused. I have successfully built simple MVPs to complex enterprise platforms across industries such as Healthcare, FinTech, Logistics, Marketplaces, and Social Platforms. --- Core Expertise : Full Stack Development * Frontend: React.js, Angular, React Native, JavaScript, jQuery * Backend: Python, Node.js, PHP (Laravel, CakePHP) * Databases: MySQL, PostgreSQL, MongoDB, InfluxDB * API Development: REST APIs, Web Services, Microservices AI-Assisted Engineering * Cursor AI development workflows * GitHub Copilot and AI coding agents * AI-powered application features * Integration with AI APIs and models * AI-assisted development pipelines Cloud & Infrastructure * AWS architecture and deployment * AWS Lambda * Amazon S3 * CloudFront * Serverless architecture * DevOps deployment pipelines Data & Visualization * Highcharts data visualization * Real-time dashboards * Time-series data using InfluxDB * Grafana monitoring * Kafka streaming pipelines --- Domain Experience : Healthcare Technology * HIPAA-compliant systems * Telemedicine platforms * Clinical workflow systems * HL7 & FHIR integrations * EMR / EHR integrations * Cerner APIs (System, Provider & Patient APIs) FinTech * Payment integrations using Plaid & Dwolla * Secure financial APIs * Compliance-driven architecture Industrial IoT / Automation * SCADA System * PLC integration * OPCUA protocol * Ethernet/IP * Modbus TCP * Real-time machine data collection and control --- Additional Technical Expertise * Custom Slack Apps & Bots * Bubble no-code / low-code platform * Secure API architecture * Web application security * Real-time data systems * Marketplace & SaaS platforms --- Development Approach * Quick understanding of business requirements * Clean, maintainable, and scalable code * Strong communication with clients * Secure and reliable architecture * Leveraging AI tools to accelerate development --- Industries Served * Healthcare & Telemedicine * FinTech * Logistics & Supply Chain * E-commerce * SaaS Platforms * Marketplaces * Social Platforms --- If you are looking for an experienced developer who can transform complex ideas into reliable and scalable applications, I would be happy to collaborate. Thanks!