Senior Software Engineer — Lead Scalable, AI‑Driven Systems

MasterCorp, Inc.; Lorida (FL); On-site; USD 120,000 - 180,000; Full time

Job summary

MasterCorp, Inc. seeks aSenior Software Engineer to lead a small, high-impact team in designing and delivering critical applications and integrations across the technology stack.

You will mentor engineers, own operational outcomes, and drive architectural decisions with a focus on reliability, scalability, and security. The role requires 7+ years in software development, deep C#/.NET expertise, distributed systems experience, and strong communication across technical and non-technical

Qualifications

• Bachelor’s degree in Computer Science, Mathematics, Engineering, or related field (or equivalent).
• 7+ years of professional software development experience with C#/.NET.
• Proven experience building production-grade full-stack applications and backend services.
• Strong background in distributed systems and asynchronous messaging patterns.
• Experience with NServiceBus, service buses, queues, or event-driven platforms.
• API design for microservices, service contracts, and data contracts.
• Relational database design, indexing, and performance optimization.
• Familiarity with Azure cloud, CI/CD, and modern delivery practices.
• Experience with Blazor, ASP.NET Core, and .NET MAUI for web and cross-platform apps.
• Front-end technologies (HTML5, CSS3, JS) and SDLC/agile methods.
• Ability to communicate complex concepts clearly to technical and non-technical audiences.

Responsibilities

• Design, develop, and maintain full-stack software across front-end, back-end, APIs, and data layers.
• Build scalable software using C#/.NET for internal and customer-facing apps.
• Develop and evolve distributed systems with message-driven patterns (NServiceBus).
• Ensure reliability with retries, idempotency, observability, and graceful failure handling.
• Extend microservices and APIs; create service endpoints and background processing components.
• Define data schemas, contracts, and integration patterns across storage and messaging systems.
• Write unit, integration, and regression tests; maintain quality and security.
• Troubleshoot defects, production issues, and performance bottlenecks across layers.
• Take operational ownership: monitoring, support, RCA, and continuous improvement.
• Collaborate with stakeholders and engineering teams; participate in agile ceremonies.
• Mentor teammates in design, coding standards, and engineering practices.
• Stay current with emerging AI-assisted tools and responsible adoption.

Skills

C# & .NET

Distributed systems

NServiceBus

Blazor

ASP.NET Core

NET MAUI

Azure

API design

Unit testing

Agile

Mentoring

Communication

Education

Bachelor's degree in Computer Science or related field

Tools

NServiceBus

Job description

MasterCorp, Inc. seeks aSenior Software Engineer to lead a small, high-impact team in designing and delivering critical applications and integrations across the technology stack.

You will mentor engineers, own operational outcomes, and drive architectural decisions with a focus on reliability, scalability, and security. The role requires 7+ years in software development, deep C#/.NET expertise, distributed systems experience, and strong communication across technical and non-technical