Saml, Jira, Graphql, REST, API design principles, OAuth 2.0, Observability and Monitoring, Performance Scalability and Security, Enterprise Integrations, APM tools like Datadog, Distributed systems and microservices architecture, JQL, Authentication vs Authorization, GRPC, OpenID Connect, System Design and Architecture, SCIM System for Cross-domain Identity Management, Agile and Lean methodologies, SSO protocols