Senior Software Engineer

*PLEASE NOTE: this position is located in Denver, CO or Seattle, WA and requires attendance in office up to three days a week.* Candidates must be legally authorized to work in the United States. LendingTree and its affiliates (“LendingTree”) will not provide or assume sponsorship for employment visas for this position, now or in the future. The Opportunity LendingTree is looking for a Senior Software Engineer to join our Insurance technology team and help build, support, and evolve web applications used by our customers and internal teams. You will work across existing and new capabilities, including applications that integrate with third-party services, databases, and user-facing experiences. This role is a strong fit for an engineer who enjoys solving complex problems, working thoughtfully in established and greenfield codebases, and partnering with the business to turn requirements into reliable, maintainable software. Our team primarily works in C#/.NET and modern web technologies, but we are open to engineers from other technical backgrounds who bring strong software engineering fundamentals and can learn and ramp quickly. How You’ll Make an Impact Design, develop, and enhance scalable, highly maintainable web applications that support LendingTree's Insurance business, including solutions that integrate with third-party web services, databases, and user-facing interfaces. Own and support existing applications through troubleshooting, bug fixes, required upgrades, performance improvements, and thoughtful changes to existing functionality. Break down complex business and technical problems and design solutions that are resilient, robust, and practical to maintain over time. Translate business requirements and acceptance criteria into well-designed technical solutions, and demonstrate completed features against agreed-upon outcomes. Contribute to strong engineering practices through code reviews, testing, documentation, design discussions, and continuous improvement of the development process. Collaborate with engineers and business partners on multi-person initiatives, communicating technical ideas and tradeoffs clearly. Who You’ll Work With You will be part of the technology team supporting LendingTree's Insurance business, working closely with other engineers and business partners to build and enhance applications that support our customers and internal teams. This is a collaborative environment where engineers are expected to understand the business context behind the work, share ideas openly, participate in code review and technical discussions, and help one another solve problems and deliver high-quality software. What You'll Bring 5+ years of professional software engineering experience building and supporting web applications. Experience with a modern object-oriented programming language and web development framework. Our team primarily uses C# and .NET/ASP.NET, but experience with comparable…