Full-Time

Senior Software Engineer

.NET Full Stack

Updated on 9/4/2026

RLI

RLI

1,001-5,000 employees

Specialty insurer serving niche risk markets

Compensation Overview

$96.3k - $137.7k/yr

+ Annual bonus + Employee stock ownership plan + 401(k) company contribution + Profit-sharing contributions

Peoria, IL, USA + 3 more

More locations: Peoria, AZ, USA | Tempe, AZ, USA | Alpharetta, GA, USA

Hybrid

Flexible and hybrid work arrangements are available.

Bachelor's

Category
Software Engineering (1)
Required Skills
LLM
Agile
JavaScript
Distributed Systems
Git
Apache Kafka
RAG
.NET
Microservices
C#
MongoDB
REST APIs
DevOps
HTML/CSS

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Requirements
  • A 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, and JavaScript.
  • Experience working with MongoDB, Microsoft SQL Server or other relational databases, and Kafka.
  • Experience 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.
  • 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 independently or within a team.
  • Advanced experience with the design and development of 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 frameworks.
Responsibilities
  • 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, quality assurance 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 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.
  • 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.

RLI provides specialty insurance in the United States, focusing on niche property, casualty, and surety markets to help customers protect assets and manage risk. Its product offerings are customized insurance policies developed through underwriting that targets very specific needs, backed by a team of employee-owners who have decision-making freedom to serve customers and run the business. Compared with others, RLI emphasizes deep niche expertise, personalized service, and an entrepreneurial, owner-driven culture, aiming to perform well across different market cycles. The company's goal is to offer reliable insurance solutions with strong financial strength and peace of mind for its customers and partners.

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

Illinois

Founded

1965

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Simplify Jobs

Simplify's Take

What believers are saying

  • Q2 2026 operating earnings rose to $0.83, with 85.6 combined ratio and 25% ROE.
  • RLI returned $184 million via special dividend and buybacks, signaling excess capital through 2026.
  • Casualty premium growth 11% and new IntelliShift telematics partnerships strengthen fleet-risk pricing and retention.

What critics are saying

  • Casualty combined ratio hit 99.3 in Q2 2026, erasing margin as growth accelerates.
  • Property and surety depend on favorable reserve releases; their disappearance would cut earnings quickly.
  • A catastrophe cluster or adverse reserve review in 2027 could expose thin underwriting cushions.

What makes RLI unique

  • RLI’s niche specialty underwriting across property, casualty, and surety avoids commoditized mass-market competition.
  • Fifty-one straight dividend increases show disciplined capital allocation and conservative balance-sheet management.
  • Independent-agent distribution plus loss-control partnerships like IntelliShift deepen embedded customer relationships.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

Health Savings Account/Flexible Spending Account

Flexible Work Hours

Hybrid Work Options

Paid Vacation

Paid Holidays

Parental Leave

Company Equity

Performance Bonus

Profit Sharing

Professional Development Budget

Tuition Reimbursement

Education Bonuses

Training & Certification Opportunities

Employee Assistance Program

Wellness Program

Company News

Bus & Motorcoach News
Aug 7th, 2026
RLI partners with IntelliShift to expand fleet safety technology for insured operators.

RLI partners with IntelliShift to expand fleet safety technology for insured operators. PEORIA, Ill. - RLI Transportation has partnered with fleet intelligence platform IntelliShift to provide its policyholders with discounted access to technology designed to improve fleet safety, operational visibility and performance. The partnership gives RLI Transportation policyholders exclusive pricing on IntelliShift's platform, which combines telematics, AI-powered dash camera insights, vehicle maintenance, compliance, safety and analytics into a single dashboard. According to the companies, the partnership expands RLI Transportation's network of telematics and safety technology providers while offering a connected platform that integrates with systems many commercial fleets already use. IntelliShift also integrates with two of RLI Transportation's technology partners, Netradyne and TruckerCloud. Netradyne's AI-powered camera technology provides video-based insights to support driver coaching and encourage safer driving habits, while TruckerCloud simplifies telematics data sharing and gives fleets greater visibility into operational data. "At RLI Transportation, we are committed to helping our customers build safer, more efficient fleet operations that are easier to manage," said Jamie Wilson, assistant vice president of loss control for RLI Transportation. "Our partnership with IntelliShift gives insureds more actionable insights to better understand risk, improve driver performance and make more informed decisions faster." RLI Transportation provides insurance products for trucking, public auto, commercial specialty auto, moving and storage, and other transportation operators.

Yahoo Finance
Jul 23rd, 2026
RLI Corp delivers strong Q2 2026 results with 17% investment income growth and $2 special dividend

RLI Corp reported Q2 2026 operating earnings of $0.83 per share, slightly up from $0.82 last year, whilst net earnings jumped to $1.82 from $1.34. The insurance company saw net investment income rise 17% to $46 million and achieved a 25% return on equity. Gross premiums written grew 3%, with the casualty segment leading at 11% growth. The company recorded a combined ratio of 85.6 and underwriting income of $59.9 million. RLI returned capital to shareholders through a $2 special dividend and authorised a $250 million share repurchase programme, buying back 235,000 shares. Book value per share increased 11% from year-end 2025. Total investments and cash stood at approximately $4.9 billion.

Advertisement Shout
Jul 23rd, 2026
RLI's gross premiums written rise 3% to $579.7m in Q2'26.

RLI's gross premiums written rise 3% to $579.7m in Q2'26. Specialty insurer RLI Corp. reported gross written premiums (GPW) of $579.7 million in the second quarter of 2026, up 3% from $562.3 million in the same period last year. RLI said the growth in total premiums was driven by its casualty division, which generated $339 million in premiums. Properties generated $199.3 million, while guarantees generated $41.4 million. For the quarter, net written premiums were US$484.7 million, an increase of 6% from US$457.1 million in the same period last year, while net premiums earned were US$417.1 million, an increase of 3.8% from US$401.9 million in the same period last year. In the second quarter of '26, net profit totaled US$168 million, an increase of 35.1% from US$124.3 million in the second quarter of '25. Operating profit reached $76.9 million ($0.83 per share), compared with $76.2 million in the same period last year. RLI posted underwriting revenue of $59.9 million, down from $62.2 million, and a combined ratio of 85.6%, up from 84.5%. The results for both years included good development in loss reserves from previous years, which increased underwriting income by $35.1 million in 2026 and $24.4 million in 2025. Net investment income increased 16.8% to $46 million from $39.4 million. The portfolio's total return was 3.4% for the quarter and 3.0% for the six months ended June 30, 2026. "We are pleased to report another quarter of premium growth and profitability," said Craig Kliethermes, president and chief executive officer of RLI Corp. "Gross premiums increased 3%, driven by our casualty business, while strong margins in our property and surety businesses drove a combined ratio of 86. Net investment income increased 17%, complementing our underwriting performance and driving growth from 2025 Book value per share increased 11% year-to-date, including dividends returned to shareholders. These results reflect our disciplined execution and continued commitment to providing expertise and excellence in service to our clients." Spread the love

Yahoo Finance
Jul 22nd, 2026
RLI Q2 revenue jumps 30.6% to $575.6M, beating estimates by 25.6%

RLI, a specialty insurance provider, exceeded Wall Street's revenue expectations in Q2 CY2026. The company reported sales of $575.6 million, up 30.6% year on year and 25.6% above analyst estimates. Net premiums earned reached $417.1 million, beating analyst forecasts of $411 million. The company's non-GAAP profit of $0.83 per share came in 15.3% above consensus estimates. RLI's combined ratio of 85.6% outperformed expectations of 89.2%. The company's revenue has grown at a 14.6% compounded annual growth rate over the past five years. Net premiums earned accounted for 90.2% of RLI's total revenue during the last five years, highlighting the importance of its underwriting activities to overall performance.

Reinsurance News
Jul 17th, 2026
RLI announces James H. Bradshaw to join Board of Directors.

RLI announces James H. Bradshaw to join Board of Directors. RLI Corp., a US specialty insurer offering property, casualty and surety insurance products, has announced the appointment of James H. Bradshaw to its Board of Directors. Bradshaw joined the Board with effect from 15 July 2026. His initial term will continue until the company's next annual shareholders' meeting in May 2027, when he will be nominated for re-election by shareholders. His appointment became effective on 15 July 2026 as part of the company's ongoing board governance and oversight arrangements. "We are pleased to welcome Jim to our Board of Directors," added RLI Corp. Board Chairman Dave Duclos. "His extensive industry experience, strategic perspective and deep understanding of RLI's business model will bring valuable insight to our Board and help guide RLI's profitable growth and continued long-term success."