Senior Software Engineer - Substrate App Platform team

Job ID: 200047800Posted: 2026-09-23Location: United States, Washington, RedmondSalary: USD $119,800 - $234,700 per yearEmployment type: Full-TimeWork site: 3 days / week in-officeRole type: Individual ContributorTravel: Less than 25%Profession: Software EngineeringDiscipline: Software EngineeringCompany: MicrosoftOverviewAre you passionate about building complex things using a large number of simple components efficiently, safely, consistently and at scale? Come join a team that values diversity, inclusion, collaboration and working better together to expand the foundation and the core of Substrate. As a Senior Software Engineer, on the Substrate App Platform team, you will help evolve the platform and its supporting microservices that enable internal Microsoft teams to build on Substrate. This role offers the opportunity to deepen your problem-solving and engineering skills, collaborate across teams to achieve shared goals, and grow through continuous learning and innovation alongside your teammates. In alignment with our Microsoft values, we are committed to cultivating an inclusive work environment for all employees to positively impact our culture every day. Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond. ResponsibilitiesDesign, develop, and maintain scalable web applications across the full stack (front-end, backend, database, cloud infrastructure).Identify dependencies and contribute to design documentation with minimal oversight.Develop and implement reusable, high-quality code for services and features.Lead feature development from concept through launch.Break down large work items into smaller tasks and provide accurate estimationsServe as a Designated Responsible Individual (DRI) working on-call to monitor system/product feature/service for degradation, downtime, or interruptions and gains approval to restore system/product/service for simple problems.Stay current with technologies to improve reliability, performance, and scalability.Provide guidance and mentorship to other team members. QualificationsRequired Qualifications:Bachelor's Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or PythonOR equivalent experience.Preferred Qualifications:Master's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or PythonOR Bachelor's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience. Experience shipping complex, enterprise-scale software with emphasis on reliability, scalability, and maintainability. Proficiency in at least one modern front-end framework (e.g., React, Angular, Vue.js).Proficiency in a back-end programming language (e.g., Node.js, C#, Java). Experience with RESTful APIs and microservices architecture.Experience with AI/ML concepts and their application in software development. Knowledge of CI/CD pipelines and automated testing frameworks. Familiarity with cloud platforms such as Azure, AWS, or Google Cloud. Portfolio or open-source contributions that highlight versatility across technologies, frameworks, or domains. Experience with graph database (e.g., Neo4j). Software Engineering IC4 - The typical base pay range for this role across the U.S. is USD $119,800 - $234,700 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $160,200 - $261,000 per year. Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here:This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.