Senior Software Engineer (.NET/AWS)
Job Title: Senior Software Engineer (.NET/AWS) Key Skills: .NET, C#, AWS, OAuth2, SAML 2.0, OIDC, SaaS Architecture, RBAC, Multi-Tenant Systems, Identity Federation Experience: +7 YOE. Location: Costa Rica Mode: Remote. We at Coforge are hiring Senior Software Engineer (.NET/AWS) (#141767073) with the following skill set.
Key Responsibilities
Design, develop, and maintain scalable backend solutions using .NET/C# for enterprise SaaS applications with a focus on security, performance, and reliability. Implement and manage enterprise authentication and identity solutions including OAuth2, SAML 2.0, OIDC, SSO integrations, identity federation, and migration from legacy identity systems to modern IDaaS platforms. Design and enhance multi-tenant SaaS architectures, including tenant isolation, RBAC authorization models, secure data access governance, and tenant provisioning workflows. Collaborate with engineering teams and product stakeholders to improve platform capabilities, operational workflows, and overall software quality through hands-on technical leadership. Required Skills & Qualifications Bachelor’s degree in Computer Science, Engineering, Information Technology, or equivalent practical experience. 7+ years of experience as a Software Engineer in enterprise SaaS environments. Strong hands-on experience with .NET and C# backend development. Proven experience implementing OAuth2, SAML 2.0, OIDC, enterprise SSO integrations, and identity federation in production environments. Experience managing token flows, session management, and authentication mechanisms in multi-tenant SaaS platforms. Strong expertise designing or evolving SaaS multi-tenant architectures, including tenant isolation, access control, and data security models. Experience building and improving tenant provisioning workflows, onboarding automation, fault handling, and recovery processes. Strong knowledge of RBAC models, authorization frameworks, and secure data access governance in compliance-driven environments. Hands-on experience with AWS services and platform-level cloud operations. Strong communication, collaboration, troubleshooting, and technical leadership skills with the ability to work effectively across embedded teams and product stakeholders. Preferred Skills: Experience with Python for backend services or operational tooling. Familiarity with embedded analytics platforms such as Sisense or similar BI tools. Experience supporting internal administration platforms or operational tooling workflows. Familiarity with SOC 2 compliance, audit readiness, and data processing pipelines. Posted On: 14-05-2026 At Coforge, we hire professionals based solely on their skills and do not discriminate based on age, disability, religion, gender, sexual orientation, socioeconomic status, or nationality. Apply To This Job