Senior Software Engineer (Identity & Access Management with .NET)

Location: Remote Experience: 8+ years (senior-level) Employment Type: Full-time / Contract Position Overview: We are seeking a highly skilled Senior Software Engineer (IAM) with strong experience in authentication protocols, cloud-native development, and enterprise security. The ideal candidate will have deep hands-on expertise in C#/.NET, identity management solutions like Okta or Auth0, and AWS cloud services. This role requires strong engineering fundamentals, the ability to design secure, scalable microservices, and experience implementing modern identity and access management (IAM) solutions across complex enterprise environments. Key Responsibilities: • Design and develop secure, scalable applications using C# (.NET Core / .NET 6+) • Implement and optimize authentication and authorization using SAML 2.0, OAuth 2.0, OIDC, JWT, and federation standards • Configure and integrate enterprise identity providers such as Okta and Auth0 • Build microservices using event-driven architecture patterns • Develop and maintain robust RESTful APIs • Architect and support cloud-native systems using AWS services including: • DynamoDB, SNS/SQS, ECS/Fargate, Lambda • API Gateway, Secrets Manager, IAM • S3, Route53 • Design and manage cloud infrastructure using CloudFormation or AWS CDK • Work closely with DevOps teams to build and maintain CI/CD pipelines in Jenkins • Containerize and deploy distributed services using Docker • Monitor application performance, reliability, and security in production environments • Collaborate with architects, product managers, and engineering teams to ensure alignment with security and compliance requirements Required Skills: • C# (.NET Core / .NET 6+) – primary development expertise • Strong understanding of authentication protocols: • SAML 2.0, OAuth 2.0, OIDC, JWT, Federation • Hands-on experience integrating Okta or Auth0 for enterprise IAM • Experience designing microservices and event-driven architectures • Strong knowledge of REST API development and best practices • Compute & Messaging: ECS/Fargate, Lambda, SNS/SQS • Databases: DynamoDB • Security & API: API Gateway, Secrets Manager, IAM • Storage & Networking: S3, Route53 • IaC: AWS CloudFormation, AWS CDK • Containerization with Docker • CI/CD pipeline development using Jenkins • Version control with Git/GitHub • Experience with application performance & security monitoring tools Experience Requirements: • 5+ years of professional experience in software engineering • 3+ years of hands-on work in Identity and Access Management (IAM) • Strong background in enterprise authentication and security • Proven experience developing cloud-native, microservices-based applications • Solid understanding of security best practices, identity lifecycle, and compliance requirements Preferred Qualifications: • Experience supporting large-scale, multi-tenant enterprise platforms • Knowledge of zero-trust security principles • Familiarity with API security, threat modeling, and secure coding practices • Certifications in AWS, Okta, or Auth0 Apply tot his job