> Markdown version of [/jobs/ext/3474598-backend-net-software-engineer](https://www.wearedevelopers.com/jobs/ext/3474598-backend-net-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend .NET Software Engineer - **Company:** Experian plc - **Location:** United States (Remote available) - **Experience:** Expert - **Salary:** $116,000.0 - $208,000.0 - **Contract:** Permanent contract - **Skills:** ASP.NET, .NET Framework, Multitier Architecture, Microsoft Windows, Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Application Lifecycle Management, Unit Testing, Bash Shell, C Sharp (Programming Language), Cloud Computing, Cloud Engineering, Profiling, Databases, Continuous Integration, Distributed Systems, Linux System Administration, MongoDB, NoSQL, Windows PowerShell, Scrum Methodology, Software Engineering, Tax Compliance Software, Enterprise Software Applications, Postman, System Availability, Grafana, Backend, Git, Xunit, Moq, Event Driven Architecture, Kubernetes, Information Technology, Deployment Automation, Build Process, Functional Programming, Cloudwatch, Dynatrace, Microservices - **Published:** September 10, 2026 - **Apply:** https://www.builtincolorado.com/job/senior-backend-net-software-engineer/11090132?handler=ApplyRedirect ## About the Role * Bachelor's degree in Computer Science, Information Technology, or a related field. * Expert-level proficiency in .NET 8, C# 12+, and ASP.NET Core * 7+ years of hands-on software development experience. * Experience with microservices architecture, distributed systems, and event-driven design. * Design and implement secure APIs and enforce best practices for authentication and authorization. * Experience profiling and optimizing large-scale applications processing millions of transactions daily. * Familiarity with DRY, SOLID, and Clean Architecture principles. ## Description Lead the design, architecture, development, deployment, and optimization of scalable .NET backend systems processing millions of daily healthcare transactions. Mentor developers, guide technical decisions, improve CI/CD pipelines, implement secure APIs, and collaborate with product stakeholders. The role requires expertise in .NET, C#, ASP.NET Core, cloud-native AWS services, Kubernetes, microservices, distributed systems, testing, observability, and secure software development., We help healthcare providers and insurers ensure accurate patient eligibility and coverage, reducing claim denials and improving patient access to care. Our platform processes millions of transactions daily, requiring high availability, security, and scalability. By joining our team, you'll help improve healthcare operations and outcomes for patients., We're looking for a Senior Backend Software Developer with expertise in designing and maintaining scalable .NET applications. You'll lead technical projects, mentor team members, and lead architecture decisions to ensure our systems meet the reliability, and security. Experience with healthcare data standards such as EDI and HL7, as well as HIPAA compliance, is highly valued. You will report to the Software Engineering Director. Responsibilities * Lead design and architecture discussions for complex backend systems. * Mentor junior and mid-level developers, promoting best practices in coding and testing. * Manage critical components of the application lifecycle, from design through deployment. * Evaluate and introduce new technologies to improve scalability, maintainability, and performance. * Collaborate with product owners and partners to influence technical direction and ensure understanding of our goals. * Contribute to and improve CI/CD pipelines, build processes, and deployment strategies. * Participate in Agile ceremonies including backlog grooming, sprint planning, and technical design discussions. Testing and Tools * Experience with unit testing frameworks such as xUnit and Moq. * Familiarity with API testing tools such as Postman or Insomnia. * Familiarity with MongoDB or other NoSQL database systems. * Familiarity with observability tools such as Dynatrace and Amazon CloudWatch. * Comfortable using Git for version control. Environments * Comfortable working in both Windows and Linux environments, including PowerShell and Bash scripting. * Hands-on experience with cloud-native architectures and AWS services such as S3, Lambda, EC2, and EKS. * Experience with containerization and orchestration technologies, including Kubernetes., Lead design and implement IT solutions for clients, focusing on Azure and Active Directory. Interface with clients, manage project cost/quality/schedule risks, analyze data, document deliverables, mentor junior consultants, and support R&D to deliver value-driven solutions. Up to 15% travel. Top Skills: Active DirectoryAzure Wipfli Tax Manager 10 Minutes Ago Remote or Hybrid Senior level Senior level Cloud * Fintech * Software * Business Intelligence * Consulting * Financial Services Manages tax compliance and advisory services for manufacturing and retail distribution clients. Reviews federal and multistate partnership returns, researches technical matters, leads client relationships and multidisciplinary teams, supports business development, and develops staff. Responsibilities also include reviewing tax provisions and related information, preparing client correspondence, advising management, and maintaining technical and industry expertise through continuing education. 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