Sr. Software Engineer .NET Full Stack

Sr. Software Engineer .NET Full Stack BNA2145

Work Arrangement: Onsite only (No remote or hybrid option)

Location: Wilmington, DE

Position Type: Contract (W-2) No Corp-to-Corp or 1099 arrangements will be considered

Duration: Approx. 12 months

Must be a U.S. Citizen or Green Card holder . No sponsorship available.

Position Overview

Our client, a leading financial services institution, is seeking a Sr. Software Engineer for a 12-month contract assignment based in Wilmington, DE . This senior-level role is focused on the design, development, and deployment of complex enterprise software applications. The ideal candidate will bring leadership to full-stack development initiatives and be a key contributor to Azure Cloud migration efforts.

This is an onsite role requiring work to be performed at the Wilmington, DE office. Remote work is not permitted .

Key Responsibilities

• Lead full-stack application design, development, and enhancement efforts across enterprise systems.
• Architect scalable, secure, and maintainable solutions based on complex business and technical requirements.
• Collaborate with team members to drive Azure Cloud migration and deployment strategies.
• Act as a senior technical lead and mentor for junior developers.
• Translate business requirements into functional and technical specifications.
• Apply modern design principles using tools and technologies such as WebForms, .NET MVC, C#, Angular, and SQL Server.
• Use Entity Framework Core for data modeling and apply Test-Driven Development (TDD) methodologies.
• Participate in detailed code reviews, testing, debugging, and quality assurance processes.
• Develop and maintain technical documentation including diagrams, specifications, and flowcharts.
• Recommend and evaluate tools and technologies to improve development productivity and application resilience.
• Support planning, budgeting, and technical assessments in coordination with business and IT teams.
• Uphold security, compliance, and operational standards, ensuring adherence to organizational and regulatory policies.
• Promote the organizations brand and commitment to diversity, equity, and inclusion.

Required Qualifications

• Associates degree and 6+ years of systems analysis and application development experience
  
  OR
  In lieu of a degree, 8+ years of combined higher education and relevant work experience, including 6+ years in application development.
• Demonstrated expertise in:
• Full-stack development with WebForms, .NET MVC, C#, Angular, and SQL Server
• Azure Cloud migration projects
• Entity Framework Core for data modeling
• Test-Driven Development (TDD) practices
• Strong problem-solving, analytical, and debugging skills.
• Excellent verbal and written communication abilities.
• Proven ability to lead technical efforts and mentor less experienced team members.
• Strong organizational and multitasking capabilities.

Preferred Qualifications

• Deep familiarity with the clients internal application architecture and infrastructure.
• Recognized SME in enterprise application development.
• Experience integrating complex systems and interfacing across multiple platforms.
• Prior experience delivering high-impact projects outside of typical business-as-usual operations.
• Expertise with enterprise-level software development lifecycle and governance.

Key Skill Areas

1. Full-Stack Development

• WebForms
• .NET MVC
• C#
• Angular
• SQL Server

2. Cloud Migration

• Azure Cloud deployment and modernization
• Migrating legacy applications to Azure

3. Application Design & Testing

• Complex application architecture and design
• Data modeling using Entity Framework Core
• Test-Driven Development (TDD) practices