Gaurav Bhasin

About Gaurav Bhasin

Software Architect and senior hands-on engineer specializing in the design and implementation of microservices, event-driven architectures, and SOA platforms, delivering secure, highly scalable, and observable distributed systems.• Designed and implemented enterprise SSO solutions using OAuth2, OIDC, SAML, JWT with Auth0 and Okta across multi-application ecosystems.• Built reactive IAM gateway services using Spring WebFlux to:• Enrich ID/Access tokens with dynamic claims• Transform SAML assertions for partner SPs• Orchestrate M2M token flows and backend identity integrations• Hands-on experience debugging complex production issues including: 401/403 authentication failures, Certificate trust chain and TLS configuration• Audience and issuer validation across distributed systems• Extensive AWS experience: EKS, ECS, API Gateway (REST & HTTP), VPC, NLB/ALB, S3, RDS, Secrets Manager, Parameter Store.• Strong expertise in secure REST API design, reactive WebClient integrations, and high-throughput backend services.• Deep experience in Banking & Investment and Healthcare domains with strict compliance and security controls.• Containerization & cloud-native deployments using Docker and Kubernetes.• Strong programming expertise in Java, PL/SQL, Python, JavaScript, Golang, C/C++.• Experience building SPAs using Angular, React, Vue with NgRx for state management.• Agile practitioner with strong TDD discipline and CI/CD experience.• 8+ years of technical leadership, mentoring engineers, reviewing designs, and owning deliverables end-to-end.

Experience

1. Solutions Architect

   Cigna Healthcare

   Feb 2025 — Present · Austin, TX, US

   Acted as Solution Architect for Cigna’s Member Portal IAM modernization, designing enterprise authentication and identity federation across internal healthcare platforms and external partner applications.• Architected hybrid identity architecture supporting both on-prem enterprise systems and cloud-native services, integrating Auth0 while maintaining compatibility with legacy healthcare applications.• Designed and implemented federated SSO architecture using OAuth2, OIDC, and SAML, enabling seamless authentication across member portals, broker portals, and partner ecosystems.• Built a reactive IAM orchestration gateway using Spring WebFlux, enabling token enrichment, claims transformation, and secure protocol translation across distributed healthcare systems.• Implemented secure Machine-to-Machine authentication using OAuth Client Credentials, enabling secure service-to-service communication across partner and enterprise healthcare systems.• Architected cloud-native deployment on AWS (EKS, API Gateway, VPC, ALB/NLB) while ensuring compatibility with on-prem enterprise infrastructure, enabling hybrid and future cloud migration strategies.• Designed identity solutions supporting healthcare ecosystem workflows, including member enrollment platforms, broker integrations, and benefits management systems.• Integrated enterprise IAM services with healthcare transaction systems supporting enrollment and claims workflows.• Produced architecture artifacts including enterprise architecture diagrams, authentication sequence diagrams, trust boundary models, and cloud deployment diagrams.• Introduced AI-driven observability and anomaly detection concepts to identify authentication failures, abnormal access patterns, and security risks.• Collaborated with enterprise architecture, security, and platform teams to align identity platforms with enterprise cloud strategy, scalability, and regulatory compliance requirements.

Education

• Maharshi Dayanand University

  Bachelor of Engineering (BEng), Electronics and Communications Engineering

• Syracuse University

  Master of Science (M.S.), Computer Science

Skills

• Java Enterprise Edition
• Docker
• C#
• Core Java
• Html
• C
• Machine Learning
• Amazon Web Services (Aws)
• Odi
• Music
• Spring
• Data Warehousing
• Jdeveloper
• Shell Scripting
• Hadoop
• Java
• Oracle E-Business Suite
• Algorithms
• Xml
• Adf
• Android Development
• Php Applications
• Mysql
• Spring Mvc
• Oracle Fusion Middleware
• Angularjs
• Databases
• Javascript
• Ios Development
• Drums
• Oracle Pl/Sql Development
• Oracle
• Cloud Computing
• Json
• Pl/Sql
• Data Structures
• Mapreduce
• Sql
• Linux Kernel
• Linux