Yasin J.
Expert in SSO Solutions | Keycloak | OAuth | SAML | IAM
Overview Are you struggling to implement secure and seamless Single Sign-On (SSO) solutions for your business? I’m here to help! With over a decade of experience as a Senior Software Engineer, I specialize in Identity and Access Management (IAM) systems, leveraging Keycloak, SAML, OAuth, and OpenID Connect (OIDC) to simplify authentication processes and protect your organization’s critical data. What I Offer: • Custom Keycloak configurations, including theming, user federation, and event listeners. • SSO integrations across multiple platforms, including WordPress, AWS, and enterprise SaaS solutions. • Expertise in OAuth 2.0 and SAML 2.0, ensuring robust and scalable authentication for your applications. • Development of secure REST APIs and microservices using Java and Spring Boot. • Migration of legacy systems to modern authentication frameworks. • Troubleshooting and optimization of existing IAM setups. Industries I’ve Worked With: • Healthcare • E-commerce • Education • Small and Medium Businesses (SMBs) • Technology Startups My Approach: I believe in crafting solutions tailored to your business needs. Whether you need to onboard 3,000+ users or integrate SSO for multiple third-party apps, I focus on scalability, security, and efficiency. My goal is to deliver solutions that save you time, reduce operational costs, and enhance user experience. Client Success Stories: • Designed and architected a global SSO system for an international nonprofit operating in over 100 countries. Using Keycloak, I implemented a solution that unified their IAM strategy, enabling secure access to their suite of applications for thousands of employees and volunteers worldwide. • Enabled a B2B SaaS platform to streamline authentication for business clients by integrating Keycloak with their existing systems. This included custom configurations and OAuth-based authentication, reducing login errors and improving customer satisfaction. • Customized Keycloak theming for a design-focused platform, creating a seamless and branded user authentication experience. Delivered a visually appealing, responsive, and secure login interface tailored to the client’s design needs. Why Choose Me? • 12+ years of software development experience with a strong focus on IAM and SSO. • Successfully completed 10+ Upwork projects with a 5-star rating (except one at 4.85). • Proven expertise in deploying secure IAM solutions that meet compliance standards. • Clear communication, fast delivery, and attention to detail. Let’s Work Together If you’re ready to secure your applications, streamline user authentication, or implement a robust IAM strategy, I’m here to make it happen. Let’s discuss your project today and turn your challenges into solutions!
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $82
Billed in all: $263,146$263k
$82 in the last 6 months
Across 27 contracts
Earnings, last 30 days
Skill rankings: Top 25% in Core Java
Ranked by MRR among everyone on Upwork with the skill.
- #8Security Assertion Markup Language17 freelancers · 🇺🇸 #1Top 47%🇺🇸#1 of 3
- #46Single Sign-On131 freelancers · 🇺🇸 #7Top 35%🇺🇸#7 of 21
- #47Active Directory Federation Services123 freelancers · 🇺🇸 #6Top 38%🇺🇸#6 of 19
- #50OKTA132 freelancers · 🇺🇸 #12Top 38%🇺🇸#12 of 37
- #70Core Java275 freelancers · 🇺🇸 #4Top 25%🇺🇸#4 of 9
- #84User Identity Management203 freelancers · 🇺🇸 #20Top 41%🇺🇸#20 of 39
- #100Web Application Security246 freelancers · 🇺🇸 #11Top 41%🇺🇸#11 of 25
- #150OAuth381 freelancers · 🇺🇸 #14Top 39%🇺🇸#14 of 29