Senior / Lead .NET Developer

Location: Coppell, TX (Onsite). Interview Type: Face-to-Face (Local Candidates Only). Experience: 6 to 10 Years.

About the role

The Senior Software Engineer will develop and enhance components and applications using functional and detail design requirements documentation, programming languages, and change management and quality assurance processes to the benefit of the enterprise. The role requires collaboration with others to produce appropriate documentation, estimates, and other artifacts to complete work on time, within budget, and within scope.

Responsibilities

• Conceptualize, design, program, test, implement and deploy software applications using the appropriate documentation, processes, and quality standards.
• Provide business and project expertise when collaborating with clients, IT resources, vendors, consultants and other stakeholders to identify user requirements, assess technologies, recommend and implement technical solutions.
• Ensure accuracy of coding, create technical documentation; utilize software configuration, version and quality management processes.
• Work with project participants to maximize productivity, effectiveness and timely completion.
• Provide training and guidance to less experienced personnel.
• Work independently with minimal direct supervision; exercise independent judgment to obtain results.
• Consult with senior-level management; may serve as a project technology lead or as a functional specialist.
• Address significant and/or unique issues where analysis of data requires evaluation of intangibles.
• Independently apply problem‑solving skills to investigate and research complex system problems to establish root cause and resolution.
• Share information willingly when appropriate; recognize confidential information and handle with discretion.
• Perform special projects as assigned.

Qualifications

• Minimum of 6+ years in a structured environment working on systems, applications, programming, development, testing, implementation and deployment.
• At least 7 years of in‑depth knowledge and experience in C#, .NET Framework 4.5+, and T‑SQL.
• At least 2 years of development experience in .NET Core, JavaScript, REST API, and Entity Framework.
• Preferred UI development experience with Angular (latest), React, CSS 3+, HTML 4+, and TypeScript.
• Experience with the software development lifecycle using structured processes.
• Practical knowledge of Agile principles and ability to lead SCRUM ceremonies.
• Experience with cloud development (Azure preferred).
• Competence with tools for code management, unit testing, integration testing, version control, and prototyping.
• Mortgage origination industry experience highly preferred.
• Experience and working knowledge of AI such as RAG/Graph/LLMs are preferred.
• Bachelor’s degree in Computer Science or related field required.
• Candidates must be local to Coppell/Dallas, TX area; face‑to‑face interview required.