Senior .NET Developer – SSO & PunchOut Expert

Job Description

Location: Chennai, India
Contract: 3 months (with US overlap)
Type: Individual Contributor / Remote-Friendly

About the Role

We are looking for a Senior .NET Developer with 7–8 years of experience, specializing in SSO (OAuth, SAML, OpenID Connect) and PunchOut (cXML/OCI) integrations. This role focuses on building and maintaining enterprise applications while collaborating with US-based teams. Strong communication skills and the ability to work independently are essential.

Key Responsibilities

• Design, develop, and maintain applications using .NET / .NET Core.
• Implement and manage SSO integrations across multiple authentication protocols.
• Develop and support PunchOut integrations with procurement platforms.
• Build and consume REST APIs and enterprise system integrations.
• Troubleshoot and resolve complex technical issues efficiently.
• Ensure high-quality, secure, and performant code.
• Collaborate with cross-functional teams across US time zones.

Required Skills & Experience

• 7–8 years of hands-on .NET development experience.
• Proven expertise in SSO authentication mechanisms (OAuth, SAML, OpenID Connect).
• Experience with PunchOut integrations (cXML/OCI).
• Strong understanding of web services, APIs, and enterprise system integrations.
• Proficiency with SQL Server or equivalent databases.
• Excellent communication skills, both written and verbal.
• Ability to work independently and deliver results as an individual contributor.

Preferred / Nice-to-Have Skills

• Prior experience working with US clients.
• Exposure to Azure or AWS cloud platforms.
• Experience with enterprise procurement platforms.

Why Join Us

• Opportunity to work on critical enterprise applications.
• Gain experience with SSO and PunchOut integrations for global clients.
• Collaborative yet independent work environment.
• Short-term contract with potential for extension based on performance.