Senior .NET Full-Stack Engineer — Hybrid, AI-Driven Apps

RLI Insurance Company; Tempe (AZ); On-site; USD 96,000 - 138,000; Full time

Benefits offered by this job

Annual bonus plans

ESOP

401(k) with company contributions

PTO & holidays

Parental & family leave

Hybrid work arrangements

Wellness benefits

Job summary

RLI Insurance Company seeks a Senior Software Engineer ( .NET Full Stack ) with 8–10 years of professional experience to join our Software Engineering team. You will design, develop, and support modern enterprise applications on the Microsoft stack, helping advance RLI's digital transformation initiatives.

The ideal candidate will be a strong full-stack engineer with experience building scalable, cloud-ready apps using .NET, Blazor, RESTful APIs, and microservices.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or equivalent professional experience.
• 8–10 years of professional software development experience.
• Strong experience developing enterprise applications using C# and .NET.
• Experience developing modern web applications using Blazor, Razor, HTML5, CSS3, JavaScript.
• Experience working with MongoDB, Microsoft SQL Server or other relational databases, Kafka.
• Experience designing and implementing RESTful APIs.
• Strong understanding of microservices architecture and distributed systems.
• Experience using Git for source control and implementing CI/CD pipelines in Agile environments.
• Experience using AI-assisted software development tools to accelerate coding, testing, troubleshooting, and documentation.
• Demonstrated ability to evaluate and adopt emerging technologies that improve software delivery and engineering efficiency.
• Strong analytical, problem-solving, debugging, and communication skills.

Responsibilities

• Design, develop, test, and maintain enterprise applications using C# and the .NET platform.
• Build responsive, modern web applications using Blazor, Razor, HTML, CSS, and JavaScript.
• Develop secure, scalable RESTful APIs and backend services.
• Design and implement microservices that support distributed, event-driven applications.
• Develop data access solutions using MongoDB and SQL Server.
• Implement asynchronous messaging and event streaming using Kafka.
• Participate in solution architecture, technical design, and code reviews.
• Build and maintain automated testing and CI/CD pipelines.
• Collaborate with product owners, architects, QA engineers, and business stakeholders within Agile delivery teams.
• Troubleshoot production issues and optimize application performance, scalability, and reliability.
• Follow engineering best practices for coding standards, testing, source control, documentation, and secure software development.
• Mentor junior engineers and contribute to a culture of technical excellence and continuous learning.
• Leverage AI-assisted development tools to improve software design, development, testing, debugging, and documentation.
• Familiarity with LLMs, RAG, prompt engineering, or AI orchestration frameworks.
• Evaluate and implement AI-enabled capabilities within enterprise applications for measurable value.

Skills

C# & .NET

Blazor

Razor

HTML5

CSS3

JavaScript

MongoDB

SQL Server

Kafka

RESTful APIs

Microservices

Git

CI/CD

Agile

AI-assisted development

Education

Bachelor's degree in Computer Science or related

Job description

RLI Insurance Company seeks a Senior Software Engineer ( .NET Full Stack ) with 8–10 years of professional experience to join our Software Engineering team. You will design, develop, and support modern enterprise applications on the Microsoft stack, helping advance RLI's digital transformation initiatives.

The ideal candidate will be a strong full-stack engineer with experience building scalable, cloud-ready apps using .NET, Blazor, RESTful APIs, and microservices.