Senior .NET Full-Stack Engineer - AI-Savvy & Impact

MasterCorp, Inc.; Florida; On-site; USD 110,000 - 160,000; Full time

Job summary

MasterCorp, Inc. is seeking a Senior Software Engineer to join a small, high-impact engineering team in Florida.

You will design, build, operate, and continuously improve critical business applications, platform services, and integrations across the full tech stack. The ideal candidate brings strong C# and .NET expertise, hands-on full stack experience, and a track record of delivering production-grade systems.

Qualifications

• Bachelor's degree in Computer Science, Mathematics, Engineering, or a related technical field.

Responsibilities

• Design, develop, and maintain full stack software across front-end, backend services, APIs, integrations, and supporting data systems.
• Develop scalable, maintainable software using C# and .NET across internal business systems and customer-facing applications.
• Extend existing microservices and create new APIs, service endpoints, background processing components, data workflows, and integration services.
• Create and evolve data schemas, persistence models, service contracts, message contracts, and integration patterns.
• Make pragmatic architecture and design decisions related to service boundaries, data flow, scalability, performance, maintainability, security, and operational simplicity.
• Write and maintain unit, integration, and automated regression tests to ensure quality, stability, and confidence in delivered solutions.
• Investigate, troubleshoot, and resolve defects, production issues, and performance bottlenecks across layers.
• Take operational ownership of assigned systems and functional areas, including monitoring and optimization.
• Partner with Service Desk, stakeholders, architects, engineers, and support teams to respond to issues and incidents.
• Participate in agile development meetings, design sessions, code reviews, and cross-functional planning.
• Stay current with emerging engineering practices, including AI-assisted development tools.

Skills

Full stack development

Backend engineering

Mentoring

Agile methodologies

Operational ownership

AI-aware development

Communication

Education

Bachelor’s degree in Computer Science, Mathematics, Engineering, or related field

Tools

C#

.NET

NServiceBus

Azure

Blazor

ASP.NET Core

NET MAUI

CI/CD

Web APIs

Job description

MasterCorp, Inc. is seeking a Senior Software Engineer to join a small, high-impact engineering team in Florida.

You will design, build, operate, and continuously improve critical business applications, platform services, and integrations across the full tech stack. The ideal candidate brings strong C# and .NET expertise, hands-on full stack experience, and a track record of delivering production-grade systems.