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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.

I help startups, scale-ups, and enterprises implement secure, scalable, and user-friendly authentication systems using Keycloak and other modern identity providers. With 6+ years of specialized experience in Identity and Access Management (IAM), I design and deliver production-ready Single Sign-On (SSO) solutions, passwordless authentication, and fine-grained authorization that reduce security risks while improving user experience. My core expertise includes: Keycloak implementation, optimization, clustering, custom extensions (SPI), realm design, and high-availability setups (Docker + Kubernetes) Complex SSO/Federation using OIDC, SAML 2.0, OAuth2 Integration with Microsoft Entra ID, Okta, Auth0, AWS Cognito, Google Workspace, Salesforce, Oracle IAM, and others Advanced security: MFA (WebAuthn, TOTP, YubiKey), RBAC/ABAC (OpenFGA, OPA), conditional & risk-based authentication User provisioning & lifecycle management with SCIM 2.0, LDAP/AD sync, and bulk migrations Troubleshooting and fixing common identity issues (redirect loops, token errors, SAML assertion problems, session management) I work fluently with Spring Boot, .NET, Node.js/NestJS, React/Next.js, Golang, and strong DevOps practices (AWS, Oracle Cloud, Terraform, CI/CD). Whether you need a fresh Keycloak setup, migration from Auth0/Okta/Cognito, custom authenticator development, or long-term IAM strategy — I deliver clean, well-documented solutions quickly (often within days for standard implementations). Let's discuss how I can secure and simplify authentication for your application. My Expertise: ✅ SSO / Identity Federation - SSO Login Setup (Web, Mobile, Cloud) - Custom Identity Provider Integration (SAML/OAuth-based) - Role-Based & Attribute-Based Access Control (RBAC/ABAC) ✅ Authorization & MFA - Fine-grained access via OpenFGA, OPA, RBAC/ABAC - MFA setup: OTP, TOTP, YubiKey, WebAuthn, Push - Conditional access, risk-based auth, step-up auth ✅ User Lifecycle / SCIM / Provisioning - SCIM 2.0 integrations - AD/LDAP sync - Scripted provisioning & deprovisioning - Bulk user provisioning and migration via SCIM APIs (Auth0 to OCI IAM) ✅ Troubleshooting Identity Nightmares - Fixing SAML assertion issues - OAuth callback errors - Token/session misconfigurations - Resolving redirect loops, login failures 🛠️ Identity Providers I’ve Worked With (100+): ✅ Google SSO login ✅ Microsoft Entra ID (Azure AD) SSO ✅ Okta SSO Integration ✅ Keycloak SSO ✅ Oracle IAM – OCI IAM, OAM, OIM ✅ Oracle Student Financial Aid (SFA) ✅ GitHub SSO ✅ Ping Federate SSO Login ✅ Auth0 Universal Login Setup ✅ OneLogin SSO Integration ✅ Shibboleth IdP/SP ✅ JumpCloud SSO Login/Provisioning ✅ ForgeRock IAM ✅ IdentityServer4/8 ✅ WSO2 Identity Server ✅ SimpleSAMLphp ✅ Custom SAML SPs ✅ AWS Cognito SSO ✅ Salesforce SSO ✅ G Suite Login ✅ Apple & Facebook OAuth ✅ ADFS (Active Directory Federation Services) 🏆 Why Work With Me? - Rapid SSO & IAM Setup (often within hours) - Deep experience debugging login/session/token issues - Clear, documented implementations - Flexible for both one-time fixes and long-term IAM strategy 🧰 Technical Expertise Languages: C#, Java, JavaScript, Python, PHP, Golang, Bash Frameworks & Libraries: Spring Boot, Spring Security, .NET, Node.js (Express), Django, React,NEXT JS, NEST JS, Angular. Security & Authentication: SAML2, OAuth2, OpenID Connect (OIDC), JWT, WS-Fed, MFA, SCIM, RBAC, CIBA. DevOps & Cloud Infrastructure: AWS, Oracle Cloud (OCI), Docker, Kubernetes (K8s/EKS), GitHub/Gitlabs Actions, CI/CD Pipelines Application & Deployment Management: Multi-stage Docker builds, Deployment automations, Gitlabs/Github/Jenkins CI/CD, enterprise rollout via Group Policy (GPO). If you're looking for an IAM expert who can secure your authentication workflows, integrate SSO solutions across platforms, and build scalable identity management systems, let's connect!

Need a secure, seamless Single Sign-On (SSO) solution for your business? I can help. I’m a Senior IAM Consultant with 8+ years of experience specializing in Identity and Access Management (IAM). I design and implement robust authentication systems using Okta, Microsoft Entra ID (Azure AD), Keycloak, Shibboleth, OneLogin, Auth0, OpenFGA, and custom SAML 2.0, OAuth 2.0, and OpenID Connect (OIDC) providers. I also have expertise in LDAP, WS-Fed, RADIUS, JWT, and other authentication protocols to simplify access control and safeguard critical data. My Expertise: ✅ SSO & Authentication Solutions – Implementing SAML 2.0, OAuth 2.0, JWT-based logins, API key-based security, and server-to-server authentication. ✅ IAM Integration & Setup – Configuring Okta, Microsoft Entra ID, Keycloak, ADFS, OneLogin, Auth0, Identity Server 8, and other IAM providers, Simple SAML PHP. ✅ Troubleshooting Authentication Issues – Resolving login-related issues for SAML, OAuth, and custom identity providers. ✅ Fine-Grained Authorization – Deploying reverse proxy and bridge solutions, OpenFGA, and custom authorization mechanisms. ✅ User Provisioning & Governance – Secure provisioning/de-provisioning of users, groups, and resources via SCIM, custom scripts, or scheduled sync with databases, Active Directory, or other identity sources. ✅ Multi-Factor Authentication (MFA) & Identity Governance – Enhancing security with strong IAM policies. Technical Skills: I am proficient in PHP, Java, JavaScript, Python, Golang, Shell Scripting, and various frameworks, including Spring, Spring Boot, Node.js, React, Angular, Django, WordPress, CodeIgniter, Symfony, Laravel, Gin, and more. DevOps & Cloud Security: ✅ Cloud & On-Prem Infrastructure – Hands-on experience with AWS, EKS, EC2, Kubernetes (K8s), Docker, KAAS, SAAS, and on-prem deployments. ✅ Application Deployment & Security – Securing and deploying applications in cloud and on-prem environments. 🛠️ Identity Providers I’ve Worked With (100+): ✅ Google SSO login ✅ Microsoft Entra ID (Azure AD) SSO ✅ Okta SSO Integration ✅ Keycloak SSO ✅ Oracle IAM – OCI IAM, OAM, OIM ✅ Oracle Student Financial Aid (SFA) ✅ GitHub SSO ✅ Ping Federate SSO Login ✅ Auth0 Universal Login Setup ✅ OneLogin SSO Integration ✅ Shibboleth IdP/SP ✅ JumpCloud SSO Login ✅ ForgeRock IAM ✅ IdentityServer4/8 ✅ WSO2 Identity Server ✅ SimpleSAMLphp ✅ Custom SAML SPs ✅ AWS Cognito SSO ✅ Salesforce SSO ✅ G Suite Login ✅ Apple & Facebook OAuth ✅ Slack / Zoom OAuth Integration ✅ ADFS (Active Directory Federation Services) ✅ LDAP & RADIUS Authentication ✅ CyberArk Identity ✅ Centrify (now Delinea) ✅ IBM Security Verify / Tivoli Access Manager ✅ NetIQ Access Manager / Micro Focus ✅ Bitwarden SSO / Enterprise Login ✅ Duo SSO (Cisco Secure Access) ✅ VMware Workspace ONE Access (formerly vIDM) ✅ Zoho Directory / SSO ✅ Atlassian Access (Jira, Confluence SSO) ✅ SAP IAS / IPS ✅ Azure B2C & B2B Flows ✅ Facebook Workplace SSO ✅ Moodle SSO (via SAML / OIDC plugins) ✅ Canvas LMS SSO Integration ✅ OpenAM (legacy Sun Access Manager) ✅ FreeIPA / Red Hat SSO ✅ Ory Hydra / Kratos ✅ FusionAuth ✅ Gluu Server / Janssen Project ✅ NetIQ eDirectory SSO ✅ Apache Knox (for Hadoop ecosystem) ✅ IBM ISAM / ISVA ✅ Citrix Gateway (SSO via SAML/OAuth) ✅ Palo Alto Prisma Access (SAML Integration) ✅ CrowdStrike Falcon Identity ✅ BeyondTrust Identity Security ✅ Keeper Enterprise SSO ✅ Zoho One / Zoho Directory ✅ Freshworks SSO (Freshservice, Freshdesk) ✅ ServiceNow SSO Integration If you're looking for an IAM expert who can secure your authentication workflows, integrate IAM solutions, and troubleshoot identity-related challenges, let's connect!

✅ 100% Guaranteed Meta App Review Approvals, else no pay! 💡 15+ Years building on Facebook & Instagram APIs. Not just approvals. I build the actual products behind them. 🎖️ 250 Successful Projects | $150K+ Earned | Top Rated Plus | Top 3% | 5⭐ Consistently 🆕 200+ Apps Approved , 40+ in the last 90 days ✅ 1200+ Meta permissions advanced access approved. 🚀 Built 50+ SAAS Products from scratch using Meta APIs, all with full approvals. ■ Stuck with a rejected Meta review? Getting that "Invalid Screencast" rejection? I have been solving this for hundreds of clients since years. I record the screencast, prepare the submission, handle Meta's review team, and get you approved. Most clients approved within 3 to 7 days. ■ Meta App Review & API Permissions Approvals: ➡️ Meta App Review Expert (Facebook, Instagram, WhatsApp, Threads) ➡️ Facebook App Review for Advanced Access Permissions ➡️ Facebook Tech Provider / Access Verification Expert ➡️ Facebook Business Verification Consultant ✅ Facebook API Permissions Approval (Pages, Groups, Ads, Messenger) ✅ Facebook Pages API Permissions Approval Expert ✅ Instagram API Permissions Approval Expert ✅ Instagram Basic Display API Permission Approval ✅ Instagram Graph API & Business API Permissions Approval ✅ Meta Marketing API / Facebook Ads API Permissions Approval Expert ✅ Ads Management Standard Access Approval ✅ WhatsApp Business API & Cloud API Permissions Approval ✅ Threads API Permissions Approval Expert ✅ Meta App Data Deletion Request Callback Implementation ✅ Meta Webhooks Configuration & Verification ✅ Fixing Rejected App Reviews & Resubmission Strategy ✅ Verification Screencast Video Creation for Meta Reviews ■ Meta Permissions - 100% Guaranteed Approvals 𝗙𝗮𝗰𝗲𝗯𝗼𝗼𝗸: pages_manage_posts, pages_manage_engagement, pages_read_engagement, pages_read_user_content, pages_messaging, pages_show_list, pages_manage_metadata, read_insights, business_management, Human Agent, facebook_creator_marketplace_discovery, Business Asset User Profile Access 𝗜𝗻𝘀𝘁𝗮𝗴𝗿𝗮𝗺: instagram_basic, instagram_content_publish, instagram_manage_comments, instagram_manage_messages, instagram_manage_insights, Instagram Public Content Access, instagram_business_basic, instagram_business_content_publish, instagram_business_manage_messages, instagram_business_manage_comments, instagram_creator_marketplace_discovery, instagram_shopping_tag_products 𝗔𝗱𝘀: ads_management, ads_read, pages_manage_ads, Ads Management Standard Access, Marketing API 𝗪𝗵𝗮𝘁𝘀𝗔𝗽𝗽: whatsapp_business_messaging, whatsapp_business_management, catalog_management ➡️ Top products approved through me: Postiz, Social Native, Nector Social, Devotion, Ilola, Warmly AI, and hundreds more. ■ API Development & Integration Facebook Graph API, Facebook Marketing/Ads API, Facebook Messenger API & Chatbot Development, Instagram API (Basic Display, Graph, Business), WhatsApp Business & Cloud API, Threads API, Twitter/X API v2, Pinterest API, Reddit API, Bluesky API, Shopify API, OpenAI API, Webhook/IPN/Cron Job Integrations ■ SAAS & Products Built Instagram Comment & DM Automation, Facebook Ads Creation Portals, Social Media Posting Platforms, AI Chatbots with OpenAI & ChatGPT for Messenger & Instagram, CRM Dashboards, Marketing Automation Software. Worked with ChatPion, BotSailor, Stackposts, ChatWoot, CodeCanyon. Any white label social media tool, I have seen it and can get it approved. ➡️ Recent projects - Zapify, ReplyMagic, Consentz, Adrigo Insights, Elixo, and many more.. ■ Tech Stack JavaScript (TypeScript, React, Node.js, Next.js, Express, Vue), Python, PHP (Laravel, CodeIgniter), MySQL, PostgreSQL, MongoDB, Redis, Supabase, AWS, Git, OpenAI API, Stripe, PayPal, Razorpay, SendGrid, Mailgun, Twilio ■ Why Clients choose me? Not a middleman. 15 years in Meta. $400K+ spent on Facebook Ads. 50+ SAAS products built. I understand the review process from inside out because I have built the kind of apps they review, hundreds of times. One client approved in 36 hours. Another stuck for a month, approved in one go after hiring me. That is the difference between someone who reads docs and someone who lives in the API. ➡️ 245 jobs, 100% Job Success, Top Rated Plus, Top 3% of Global Talent ➡️ Clients from US, UK, Canada, Australia, Germany and 30+ countries ➡️ Available 24/7, any timezone. Slack, Zoom, Meet, Teams, WhatsApp, Telegram ➡️ Repeat clients come back 3, 4, 5 times. I am the guy you call when Meta changes something. ■ What Clients say ⭐ "Best FB Graph developer on the planet!" - Steve, Australia ⭐ "Facebook Graph API magician!" - Raph F, Canada ⭐ "After a month trying to get Instagram permissions, he fixed it in one go." - Samer, Lebanon ⭐ "Got the required permissions in only 36 hours." - Matthias, Germany Need a Meta App Review or a SAAS Product? Message me. Let us get it done. Saurabh Dhar | Meta API Expert Upwork Top 3%

Top-rated Full-Stack Developer with 12+ years delivering secure, scalable solutions that produce measurable business outcomes for global clients. What clients achieved with my work Reduced login friction and support costs by up to 80% after SSO rollouts (SAML, OAuth2, OIDC), improving user adoption and lowering helpdesk tickets. Cut user onboarding time from days to minutes via centralized identity flows and automated provisioning. Increased team productivity up to 40% with custom Office and Google Workspace add-ins that automate repetitive work and integrate third-party systems. Strengthened security and compliance (SOC2, ISO, GDPR) by implementing hardened IAM, PKI, and cryptographic document signing. Scaled multi-tenant SaaS to thousands of organizations with sub-second auth latency and 99.9% uptime. Accelerated go-to-market and recurring revenue growth by delivering modular auth and API platforms. Selected results & experience 100+ SSO integrations across Okta, Auth0, Azure AD/Entra ID, Google Workspace, AWS Cognito, Ping Identity, ADFS, Salesforce. Architected a multi-tenant Identity Broker (sso.id) enabling customers to connect multiple identity providers in minutes, boosting partner integrations and conversions. Built 15+ Office & Google Workspace add-ins (Word, Excel, Outlook, PowerPoint, Gmail, Sheets, Docs), saving teams hundreds of person-hours per month. Developed 20+ SaaS platforms from MVP to enterprise scale with AI automation and APIs (YouTube, AWS, Firebase, Microsoft Graph), improving engagement and monetization. Implemented PKI, PDF signing, and blockchain anchoring to reduce fraud risk and streamline audits. Technical stack Protocols: SAML, OAuth2, OpenID Connect, SCIM, JWT Platforms: Okta, Auth0, Azure AD/Entra ID, Google Workspace, AWS Cognito, Ping Identity, ADFS, Salesforce Frontend: React, Next.js, Vue, Angular, TypeScript Backend: .NET 8 / C#, Node.js, Python, PHP (Laravel, Django) Databases: MySQL, Oracle, MongoDB Specialized: PKI, cryptography, PDF signing, blockchain-secured documents Why hire me ROI-focused: $1.2M+ earned across 200+ projects with measurable improvements in security, productivity, and time-to-market. Business-first engineering: I reduce operational costs, accelerate onboarding, and unlock new revenue channels. Long-term partner: responsive, reliable, and focused on evolving systems as your business grows. Tell me about your auth, add-in, or SaaS challenge and I’ll outline how we can reduce risk, save time, and increase adoption.

𝐒𝐓𝐎𝐏 𝐁𝐔𝐈𝐋𝐃𝐈𝐍𝐆 𝐀𝐂𝐂𝐄𝐒𝐒 𝐒𝐘𝐒𝐓𝐄𝐌𝐒 𝐓𝐇𝐀𝐓 𝐀𝐑𝐄 𝐄𝐀𝐒𝐘 𝐓𝐎 𝐁𝐑𝐄𝐀𝐊. Still relying on basic MFA, shared accounts, and IAM setups that look secure but fail in real-world attacks? Let’s fix that with enterprise-grade Identity & Access Management architectures built on Zero Trust principles for your AI infrastructure. 🔐 DM “IAM SECURITY” and I’ll share a complete IAM & Zero Trust Blueprint (valued at $100) the same framework used to eliminate account sharing, enforce device trust, and secure distributed teams across SaaS, cloud, and enterprise environments. 🔹 SSO / IAM Specialist | Founder of Hakxcore 🔹 6+ years in SSO & IAM | Enterprise + Startup Experience 🔹 Hands-on with Okta, Auth0, Keycloak, ForgeRock, JumpCloud & more 🔹 Worked on Machine to Machine and AI authentication apps 🔹 Worked with global clients across SaaS, EdTech, Hospitality, and Manufacturing & more I started as a security engineer focused on SSO integrations, and today I design and deliver end-to-end AI-based identity architectures, not just “login working”, but secure, auditable, and scalable access systems. 🔑 SSO & Identity Architecture From simple SSO to complex enterprise federation, I design identity systems that scale: ✓ Okta, Auth0, Keycloak, ForgeRock, Azure AD, JumpCloud, and the list keeps on going... ✓ OIDC, SAML 2.0, OAuth 2.0 ✓ SCIM provisioning & lifecycle automation ✓ Role-based & attribute-based access control (RBAC / ABAC) ✓ Multi-tenant SaaS IAM design ✓ Custom claims, token design, session hardening 🛡️ Zero Trust & Device Trust Not “checkbox security”, real Zero Trust enforcement: ✓ Device trust with MDM (Intune, Jamf, JumpCloud) ✓ Certificate-based authentication ✓ WebAuthn / FIDO2 hardware keys ✓ Contractor & external workforce security ✓ GitHub, Jira, AWS, Sentry SSO hardening ✓ Blocking account sharing, proxy enrollment, and forwarded invites ⚡ More than integrations full security systems As remote work increases, so do identity-based attacks. I don’t just connect tools, I design AI-based security outcomes: ✓ Identity threat modeling ✓ IAM policy & permission design ✓ Secure onboarding & offboarding flows ✓ Access reviews & audits ✓ IAM documentation & admin runbooks ✓ Compliance-ready IAM (ISO, SOC2, GDPR) 🧪 VAPT, DevSecOps & Cloud Security For clients who want security beyond identity: ✓ Web, API & cloud VAPT ✓ CI/CD security (SAST, DAST, secrets scanning) ✓ Kubernetes & container security ✓ Cloud IAM & misconfiguration reviews ✓ Security automation & monitoring If you’re serious about: ✓ Eliminating account sharing ✓ Securing contractors & remote teams ✓ Scaling IAM without breaking UX ✓ Passing audits with confidence 📩 Send me a message, and let’s design a security architecture that actually holds up in the real world. 📅 Updated: January 2026 Keywords: SSO, IAM, Okta, Auth0, Keycloak, ForgeRock, JumpCloud, Zero Trust, WebAuthn, FIDO2, MDM, Device Trust, OAuth, OIDC, SAML, SCIM, RBAC, ABAC, Cloud Security, DevSecOps, VAPT, AI Agent Authentication, SOC2, GDPR, ISO, Identity Architecture, Cybersecurity Consultant