Back End Developer

Job Title: Senior Backend Developer

Location: Bengaluru

Type: Full-time, Hybrid

Experience: 10+ Years

About the Role:

We are looking for a Senior Backend Developer to design and develop secure, scalable authentication and authorization services for global client-facing applications.

Responsibilities:

• Design and develop backend services supporting global authentication and authorization workflows
• Build secure APIs managing identity lifecycles, roles, permissions, and claims-based access control
• Integrate authentication services with microservices using synchronous and asynchronous communication
• Work with IAM systems such as Okta, Auth0, or Keycloak
• Apply secure design practices including encryption, secrets management, and secure cloud configurations
• Maintain data models for identity, configuration, and auditing in SQL and NoSQL databases
• Support multi-region and multi-tenant deployments
• Collaborate with teams to ensure consistent identity standards and service integration

Requirements:

• Hands-on experience with C# and .NET Core
• Experience designing and implementing authentication and authorization solutions at scale
• Understanding of OAuth2, OpenID Connect, SAML, token-based security, and federation patterns
• Experience with IAM platforms (Okta, Auth0, Keycloak)
• Experience building secure APIs and implementing claims-based access control
• Familiarity with SQL and NoSQL databases
• Awareness of security practices including encryption, secrets handling, and key rotation
• Experience integrating authentication services with microservices
• Clear English communication

Nice to Have:

• Unit testing experience
• Strong security mindset
• Familiarity with travel ecosystem concepts
• Experience collaborating across distributed teams and time zones