.NET Full Stack Developer

3Core Systems, Inc is an SAP and Success Factors Partner with employees located across the United States. Our organization is dedicated to customer and employee satisfaction. We provide High Quality, Cost efficient and Competitive Solutions and Resources.

3Core Systems is looking for Sr. Software Engineer (.NET Full Stack Developer) for one of our clients in Remote with C#, .NET Core, React, Azure, APIs, Kafka, Kubernetes, Terraform and Loan origination systems / Financial Industry experience.

Job Title: Sr. Software Engineer (.NET Full Stack Developer)

Location: Remote

Duration: 12 months Contract

Who You Are:

You are a motivated Software Development professional passionate about NET/Azure development and integrations. You excel at software development and have experience in .NET, specifically C#, React, API, and Evening. You are optimistic, proactive, analytical, and innovative, and you thrive in a fast-paced environment where you can enhance and create high-value, customer-facing systems.

What You ll Do

• Design, develop, and implement event-driven microservices and APIs using .NET Core and C#.
• Build full-stack features leveraging React for the front end and .NET/Azure for backend services.
• Develop consumer-driven APIs aligned with API-first design principles.
• Collaborate with architects and technical leads to define and refine scalable solutions.
• Decompose complex epics and user stories into manageable, testable development tasks.
• Write high-quality, maintainable, and secure code with strong unit and integration test coverage.
• Conduct code reviews to ensure adherence to coding standards, best practices, and design principles.
• Troubleshoot, optimize, and enhance existing software applications.
• Collaborate with cross-functional teams including product managers, engineers, and stakeholders to deliver high-value solutions.
• Mentor and guide junior developers, fostering growth and best-practice adoption.
• Maintain technical documentation for developed features and services.
• Adapt quickly to evolving requirements, technologies, and system integrations.
• Operate effectively in high-pressure environments, managing multiple priorities and deadlines.
• Communicate technical concepts clearly to both technical and non-technical audiences.
• Other duties as assigned.

What You ll Need:

• Bachelor s degree in computer science, Engineering, or related field, or equivalent experience.
• 5+ years of experience in full-stack software development with C#/.NET Core and React.
• Expert knowledge of RESTful APIs, and event-driven design patterns.
• Hands-on experience with Kafka (or equivalent event streaming platforms).
• Strong background in Azure services including API Management (APIM), Key Vault, and cloud-native deployments.
• Proficiency with Kubernetes and Terraform for container orchestration and infrastructure automation.
• Experience with ArgoCD or similar GitOps deployment tools.
• Familiarity with NoSQL databases (MongoDB preferred).
• Exposure to Blazor is a plus.
• Solid understanding of CI/CD pipelines, Git, and DevOps practices.
• Preferred experience in orchestrations and transformations across distributed backend systems.
• Strong analytical, problem-solving, and debugging skills.
• Proven ability to work independently while managing multiple projects.
• Exceptional communication and leadership skills with the ability to mentor team members.

Regards,

Recruiting Team

3Core Systems Inc

9101 Burnet Road, Suite 207, Austin, TX 78758

3Core Systems, Inc