Senior .NET Developer

Senior Software Engineer (.NET Full Stack)RLI is seeking an experienced Senior Software Engineer (.NET Full Stack) with 8–10 years of professional software development experience to join our Software Engineering team. In this role, you will design, develop, and support modern enterprise applications using the Microsoft technology stack while helping advance RLI's digital transformation initiatives.The ideal candidate is a strong full-stack engineer with experience building scalable, cloud-ready applications using .NET, Blazor, RESTful APIs, and microservices. You will collaborate with architects, product owners, business stakeholders, and fellow engineers to deliver secure, high-quality software that supports critical insurance business capabilities.Principal duties and responsibilities include:Design, develop, test, and maintain enterprise applications using C# and the Microsoft .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 (such as GitHub Copilot, ChatGPT, or similar technologies) to improve software design, development, testing, debugging, and documentation.Familiarity with Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), prompt engineering, or AI orchestration frameworks.Evaluate and implement AI-enabled capabilities within enterprise applications where they provide measurable business value.Apply secure and responsible AI development practices while protecting sensitive business and customer information.Stay current with emerging AI technologies and recommend opportunities to improve engineering productivity and software quality.Education and experience: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:BlazorRazorHTML5CSS3JavaScriptExperience working with:MongoDBMicrosoft SQL Server or other relational databasesKafkaExperience designing and implementing RESTful APIs.Strong understanding of microservices architecture and distributed systems.Experience using Git for source control.Experience implementing CI/CD pipelines and modern DevOps practices.Experience working in Agile software development 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.Knowledge, skills, and competencies:Ability to understand and utilize a variety of the field's concepts, practices, and procedures.Ability to use software to develop and analyze IT data and applications.Ability to work well independently or within a team.Advanced experience with the design and development of various Web Technologies and Web Services.Ability to model technology to align with business strategy.Ability to create and leverage frameworks.Ability to communicate findings and recommendations to internal and external stakeholders.Ability to influence testing approaches and framework.Compensation overview:The base salary range for the position is listed below. Please note that the base salary is only one component of our robust total rewards package at RLI. The salary offered will take into account a number of factors including, but not limited to, geographic location, experience, scope & responsibilities of the role, qualifications/credentials, talent availability & specialization, as well as business needs. The below range may be modified in the future.Base Pay Range: $96,264.00 - $137,657.00Total rewards:At RLI, we're all owners. We hire the best and the brightest employees and allow them to share in the company's success through our Total Rewards. With the Employee Stock Ownership plan at its core, the Total Rewards program includes all compensation, benefits, and perks that come with being an RLI employee.Financial incentives:Annual bonus plansEmployee stock ownership plan (ESOP)401(k) — automatic 3% company contributionAnnual 401k and ESOP profit-sharing contributions (Up to 15% of eligible earnings)Work & life:Paid time off (PTO) and holidaysPaid volunteer time off (VTO) to support our communitiesParental and family care leaveFlexible & hybrid work arrangementsFitness center discounts and free virtual fitness platformEmployee assistance programHealth & wellness:Comprehensive medical, dental, and vision benefitsFlexible spending and health savings accounts2x base salary for group life and AD&D insuranceVoluntary life, critical illness, & accident insurance for purchaseShort-term and long-term disability benefitsPersonal & professional growth:RLI encourages its employees to pursue professional development work in insurance and job-related areas. We make a commitment to employees to provide educational opportunities that help them enhance their skills and further their career advancement. RLI fosters a true learning culture and encourages professional growth through insurance courses, in-house training, and other educational programs. RLI covers the cost for most programs and employees typically earn a bonus upon successful completion of approved courses and certifications. Our personal and professional growth benefits include:Training & certification opportunitiesTuition reimbursementEducation bonusesDiversity & inclusion:Our goal is to attract, develop, and retain the best employee talent from diverse backgrounds while promoting an environment where all viewpoints are valued and individuals feel respected, are treated fairly, and have an opportunity to excel in their chosen careers. We actively support, and participate in, initiatives led by the American Property Casualty Insurance Association that aim to increase diversity in the insurance industry. Cultivating an exceptional and diverse workforce to deliver excellent customer service reinforces our culture and is a key to achieving superior business results.RLI is an equal opportunity employer and does not discriminate in hiring or employment on the basis of race, color, religion, national origin, citizenship, gender, marital status, sexual orientation, age, disability, veteran status, or any other characteristic protected by federal, state, or local law.