Principal C#/.NET Engineer

The Intersect Group; Plano (TX); On-site; USD 150,000 - 190,000; Full time

Job summary

The Intersect Group is seeking a hands-on Principal Software Engineer (C#/.NET & Azure) in Plano, TX. This role focuses on designing and delivering enterprise-scale software, cloud-native solutions, and API/microservice architectures.

You will mentor multiple teams and drive CI/CD and DevOps practices in a fast-paced environment. Ideal candidates have 10+ years in software engineering, deep C#/.NET expertise, Azure proficiency, and a track record of leading architectural decisions in large

Qualifications

• 10+ years of professional software engineering experience.
• Enterprise applications using C# and .NET.
• Strong hands-on experience with Microsoft Azure cloud services.
• Experience designing REST APIs and microservices.
• Advanced SQL Server and relational database design.
• Expertise in object-oriented design, patterns, and architecture.
• Experience with testing methodologies and Agile development.
• Solid knowledge of CI/CD and DevOps practices.
• Excellent communication and mentoring skills.

Responsibilities

• Design, develop, and deliver enterprise-scale software solutions in C#/.NET.
• Architect scalable cloud-based applications on Microsoft Azure.
• Create RESTful APIs, microservices, and SOA.
• Lead technical design discussions and establish best practices.
• Drive quality through automated testing and code reviews.
• Collaborate with product, architecture, and engineering teams.
• Mentor engineers and provide technical leadership across teams.
• Contribute to CI/CD, DevOps, and cloud deployment strategies.
• Improve performance, scalability, reliability, and maintainability.

Skills

10+ years experience

C#/.NET

Azure cloud

REST APIs

Microservices

SQL Server

OO design & architecture

Unit/integration testing

Agile and DevOps

leadership & mentoring

Education

Bachelor's degree in CS/SE or related

Job description

Principal Software Engineer (C#/.NET & Azure)

Location: Plano, TX (4 days onsite) WILL NOT CONSIDER ANYONE OUTSIDE OF DFW AREA

Work Authorization: U.S. Citizens Only NO SPONSORHIP OR C2C CANDIDATES

Overview

We are seeking a seasoned Principal Software Engineer to design, develop, and deliver enterprise-scale software solutions that support both customer-facing and internal business applications. This role requires a highly technical engineer with deep expertise in C#/.NET, Azure cloud technologies, software architecture, and distributed systems.

The ideal candidate has a strong track record of building scalable, high-performance applications, driving architectural decisions, mentoring engineering teams, and delivering cloud-native solutions in complex enterprise environments.

Key Responsibilities

• Design, develop, and implement enterprise-grade software solutions using C# and .NET technologies.
• Architect and build scalable cloud-based applications utilizing Microsoft Azure services.
• Design and develop RESTful APIs, microservices, and service-oriented architectures.
• Lead technical design discussions and establish engineering best practices.
• Drive software quality through automated testing, code reviews, and development standards.
• Collaborate with product, architecture, and engineering teams to deliver business-critical solutions.
• Participate in proof-of-concept initiatives, technology evaluations, and modernization efforts.
• Mentor engineers and provide technical leadership across multiple development teams.
• Contribute to CI/CD, DevOps, and cloud deployment strategies.
• Optimize application performance, scalability, reliability, and maintainability.

Required Qualifications

• 10+ years of professional software engineering experience.
• Extensive experience developing enterprise applications using C# and .NET.
• Strong hands-on experience with Microsoft Azure cloud services.
• Expertise designing and implementing REST APIs and microservices.
• Advanced SQL Server and relational database design experience.
• Strong knowledge of object-oriented design principles, design patterns, and software architecture.
• Experience with unit testing, integration testing, and modern testing methodologies.
• Experience working in Agile development environments.
• Strong understanding of source control, CI/CD pipelines, and DevOps practices.
• Excellent communication, leadership, and mentoring skills.

Preferred Qualifications

• Experience building cloud-native applications and distributed systems.
• Knowledge of containerization technologies and modern deployment architectures.
• Exposure to continuous integration and continuous delivery tooling.
• Experience in highly regulated or large-scale enterprise environments.
• Bachelor's degree in Computer Science, Software Engineering, Information Systems, or equivalent experience.

Top Skills

• Microservices & REST APIs
• SQL Server
• Software Architecture & Technical Leadership

The ideal candidate is a hands-on Principal Engineer who combines deep technical expertise with strong leadership skills. They have a history of architecting complex enterprise systems, mentoring engineering teams, and driving cloud-focused modernization initiatives while remaining actively involved in software development.