Senior Software Engineer

About Us: At Sitecore, our mission is to simplify how brands reach, engage, and serve people by delivering intelligent, personalised digital experiences that connect the world. We empower the world’s most iconic brands to build lifelong relationships with their customers—seamlessly, smartly, and at scale. As the leading provider of agentic digital experience software, Sitecore brings together content, commerce, and data into one composable platform that enables brands to deliver millions of meaningful, adaptive experiences every day. Trusted by global leaders such as American Express, Porsche, Starbucks, and L’Oréal, Sitecore helps brands transform engagement through experiences that are not only personalised but predictive and dynamic. Our foundation is our people—a diverse, passionate, and collaborative global team spanning over 25 countries. We believe that every experience matters, and that belief starts with how we work together. Our values guide how we lead, innovate, and connect. They are the behaviours that bring our mission and vision to life, every day, in every interaction. As we continue to evolve, we are actively cultivating AI skills across our teams to unlock new levels of creativity, efficiency, and insight. From engineering to customer experience, AI capabilities are becoming integral to how we design, build, and deliver the next generation of digital experiences. Learn more at Sitecore.com . About the Role We are looking for a Senior Software Engineer to join one of our product engineering teams. In this role, you will design, build, and maintain backend services that power Sitecore’s cloud platforms. You will work closely with product managers, architects, QA engineers, and other developers in a distributed, international environment. This is a senior individual contributor role with strong expectations around technical ownership, system design, and delivery quality. What You Will Do Design, develop, ship, and maintain production‑grade backend services Build facade and common APIs that encapsulate business logic and hide platform complexity Develop services running in Microsoft Azure, using cloud‑native patterns Work with data‑intensive services, including Azure Cosmos DB Define and evolve REST and/or GraphQL‑based APIs used by internal applications Ensure APIs are secure, performant, and observable Deliver features, bug fixes, and hotfixes following Sitecore’s engineering standards Actively contribute to refinement of user stories, acceptance criteria, and technical designs Troubleshoot and resolve complex, high‑impact production issues Contribute to and improve CI/CD pipelines and automated deployment processes Write high‑quality, testable, and maintainable code with strong test coverage Leverage modern developer tooling, including AI‑assisted development tools (e.g. GitHub Copilot or similar), to improve productivity while maintaining code quality Collaborate closely with product managers, engineering managers, architects, QA, and other engineering teams Mentor other developers through code reviews and technical discussions Contribute to defining and evolving engineering best practices What You Bring Required Experience & Skills 6+ years of professional software development experience Strong backend development experience with C# / .NET (.NET Core and/or .NET Framework) Proven experience designing and consuming HTTP APIs (REST, GraphQL, or both) Solid understanding of: Object‑oriented design Asynchronous programming Performance, scalability, and reliability Hands‑on experience with Microsoft Azure Experience working with Azure Cosmos DB or other distributed NoSQL data stores Practical experience with containerization technologies such as Docker and familiarity with Kubernetes Experience designing, building, or maintaining CI/CD pipelines Strong knowledge of Git and modern branching strategies Experience with relational databases (e.g. SQL Server) Proven experience writing unit and integration tests Comfortable using AI‑assisted developer tools (such as GitHub Copilot, M365 Copilot, or similar) as part of a modern development workflow Ability to work effectively in distributed, cross‑functional teams Strong communication skills in English (written and spoken) Nice to Have Previous experience working on SaaS or enterprise platforms Familiarity with Sitecore products (XM Cloud, XP, SXA, or related technologies) Experience designing systems using event‑driven or distributed architectures Experience with infrastructure‑oriented or deployment tooling Interest in developer productivity, automation, or applied use of AI in software development What Makes You Successful at Sitecore You take ownership beyond just implementing code You care deeply about quality, reliability, and customer impact You are comfortable working with ambiguity and evolving requirements You proactively collaborate across roles and teams You enjoy mentoring others and raising the engineering bar You use modern tooling (including AI assistants) thoughtfully and responsibly Why Join Sitecore Build cloud‑scale products used by global enterprise customers Work with modern technologies across cloud, data, and distributed systems Be part of a highly skilled, international engineering organization Strong engineering culture focused on ownership, quality, and continuous improvement Competitive compensation, benefits, and flexible working arrangements