Principal Software Engineer I

This role requires the ability to work lawfully in the U.S. without employment-based immigration sponsorship, now or in the future. Shape the future of digital experiences for millions as a Principal Software Engineer I at Spectrum, where you will drive the modernization of essential enterprise applications supporting customer care and back-office operations. Take on a pivotal technical leadership role, guiding the transformation of legacy systems into scalable, cloud-native solutions that power Spectrum's ongoing innovation. Your contributions will directly enhance how Spectrum delivers for its customers and teams. This position is in an office environment with a hybrid work schedule. Eligible employees can work from home up to one day each week. How You'll Make an Impact Lead the architectural modernization of enterprise-scale .NET applications into cloud-native, microservices-based platforms. Establish technical strategy and engineering standards for cloud adoption, application modernization, and software quality. Drive digital transformation initiatives supporting customer service operations, call centers, and enterprise back-office teams. Design scalable, secure, highly available distributed systems leveraging AWS, Google Cloud Platform (GCP), and modern cloud services. Champion DevSecOps, CI/CD automation, infrastructure as code, and engineering best practices across development teams. Guide teams in adopting modern front-end technologies and API-first architectures. Lead design reviews, architecture governance, and technical decision-making across multiple product teams. Evaluate and implement AI-assisted software development tools to improve engineering productivity and code quality. Mentor senior engineers while fostering a culture of technical excellence, innovation, collaboration, and continuous learning. Partner with business leaders to align technology investments with strategic organizational objectives. What You'll Bring to Spectrum Required Qualifications Education Bachelor's degree or equivalent experience Experience 8+ years of software engineering experience 4-5 years experience with source control tools such as GitLab or GitHub 2-3 years cloud infrastructure management and architecture experience 2-3 years experience with Helm and other Kubernetes management tools Skills Expert-level proficiency in C#, ASP.NET, .NET Core/.NET 8+, and object-oriented design principles Experience building and deploying microservices using containerized architectures Experience with Google Cloud Platform services including Cloud Run, GKE, Cloud Functions, Pub/Sub, Cloud SQL, and related services Strong experience with Git-based source control platforms including GitHub, GitLab, Azure DevOps Repos, or Bitbucket and CI/CD Pipelines Strong front-end development experience using ReactJS, TypeScript, JavaScript (ES6+), HTML5, CSS3, and responsive design frameworks. Experience integrating front-end applications with REST APIs and modern authentication mechanisms. Knowledge of authentication and authorization technologies including OAuth2, OpenID Connect, SAML, JWT, and Single Sign-On. Experience with relational and NoSQL databases including SQL Server, PostgreSQL, MongoDB, or DynamoDB. Strong understanding of application performance optimization, observability, logging, monitoring, and resiliency patterns. Experience implementing secure software development lifecycle (SSDLC) practices including static code analysis, vulnerability remediation, and secure coding standards. Experience using AI-assisted development tools such as Kiro, Claude, GitHub Copilot, Amazon Q Developer, or similar technologies to improve engineering productivity and software quality. Ability to make technical decisions and take ownership of software projects Adherence to best practices for code development, version control, continuous integration and automation Exceptional leadership and mentoring skills with experience influencing