.NET Developer (New York)

United States

Contracted

Experienced

Senior .NET Developer – API & Platform Engineering
We’re looking for a talented Senior .NET Developer to join our team and drive development of scalable, high-performance systems. You’ll focus on .NET backend and API development, with opportunities to collaborate on front-end integration and contribute to secure, enterprise-grade solutions.

Key Responsibilities

Design, build, and maintain scalable applications using .NET (C# / ASP.NET)
Develop and enhance RESTful APIs to support business-critical features
Work closely with front-end engineers to deliver cohesive user experiences (basic familiarity with front-end frameworks is beneficial)
Ensure code quality through unit testing, code reviews, and best practices
Collaborate across teams to define technical requirements and deliver solutions that meet security and performance standards
Document development processes and contribute to ongoing architectural improvements

Core Requirements

Strong experience in .NET development (C#, ASP.NET)
Proven track record building and maintaining REST APIs
Familiarity with front-end technologies such as JavaScript, HTML/CSS, and frameworks like Angular or React
Solid understanding of relational databases and SQL
Comfortable working in agile environments with cross-functional teams

Preferred Skills

Exposure to or experience with RBAC (Role-Based Access Control) systems
Awareness of security best practices, including authentication protocols, encryption, and secure API design
Experience with identity providers (e.g., OAuth2, OpenID Connect, LDAP) is a plus

Why Simeio?: Simeio is a global managed services provider offering Identity and Access Management solutions delivered as a service and interoperable with leading IAM tools. With 700+ employees worldwide, Simeio secures over 160 million identities globally for large enterprises and government entities.

Services and solutions from Simeio include Customer Identity & Access Management, Privileged Access Management, Identity Proofing, Access Management & Federation, Identity Governance & Administration, Application Onboarding, and Simeio Identity Orchestrator.The company has been recognized for its business and technical leadership and highly rated by Gartner, Forrester, and KuppingerCole, and was ranked by Great Places to Work®. For more information visit simeio.com

Simeio is an equal opportunity employer. If you require assistance with completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please direct your inquiries to any of the recruitment team at recruitment@simeio.com or +1 404-882-3700.

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.NET Developer (New York)

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