Posted Aug 22, 2026

Software Engineer III – .NET / Application Modernization- Remote

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Software Engineer III – .NET / Application Modernization Remote, CST 12-month contract Pay Rate: $65.00 - $70.00per hr. Our client needs a Software Engineer III to join a team supporting high-visibility, customer-facing financial applications. This role is a blend of C#/.NET development, application support, application modernization, and deployment automation. The engineer will work with existing applications, help modernize legacy technologies, and contribute to the organization's transition toward standardized CI/CD deployments using Harness and Deployer. The environment is currently deployed to OpenShift, with a strong focus on reliable, secure applications and authentication. The ideal candidate will have strong C#/.NET and SQL experience and be comfortable working in a large, regulated enterprise environment. Experience in banking, financial services, insurance, payments, or another highly regulated industry is highly desirable. Key Responsibilities • Develop, maintain, enhance, and troubleshoot applications using C#/.NET. • Work with SQL databases and backend systems. • Provide application support and resolve technical issues in production and non-production environments. • Participate in application modernization initiatives. • Help upgrade legacy applications from .NET Framework 4.5/4.8 to newer .NET versions. • Build and enhance CI/CD pipelines and automated deployment processes. • Support the organization's transition to Harness and Deployer for application deployments. • Work with applications currently deployed in an OpenShift environment. • Contribute to authentication and application security initiatives. • Collaborate with developers, technical teams, and business stakeholders. • Potentially contribute to front-end modernization efforts, including React, as application needs evolve. • Support applications where reliability, security, availability, and customer impact are critical. Required Skills: • Five (5) years of experience • Strong hands-on experience with C# and .NET development. • Experience with SQL and relational database backends. • Experience with application support, troubleshooting, and maintenance. • Experience working with existing applications and implementing enhancements or updates. • Ability to work with legacy applications while contributing to modernization efforts. • Strong problem-solving and troubleshooting skills. • Ability to work independently in a remote environment and collaborate effectively with a development team. Preferred Qualifications: • Experience with CI/CD pipelines and automated deployments. • Harness experience. • Experience with MuleSoft or MuleSoft integrations. • Experience upgrading .NET Framework 4.5/4.8 applications to newer .NET technologies. • OpenShift experience. • Experience with authentication/security within applications. • Experience supporting high-volume, customer-facing applications. • Banking or financial services experience is highly preferred. Large insurance or other regulated enterprise experience is also valuable. • Experience with payments, Remote Deposit, Zelle, Real-Time Payments (RTP), or transaction-processing systems is a strong plus. Candidates should be comfortable supporting high-visibility applications where security, reliability, and customer impact are critical.