Software Engineer II & Senior Software Engineer - Microsoft Defender for Endpoint

Job ID: 200042357Posted: 2026-07-27Location: 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: MicrosoftOverviewSecurity represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization accelerates Microsoft’s mission and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers’ heterogeneous environments, as well as ensuring the security of our own internal estate. Our culture is centered on embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. In doing so, we create life-changing innovations that impact billions of lives around the world.Become an integral member of the Microsoft Defender for Endpoint (MDE) team, dedicated to protecting consumers and enterprises alike from cyber-attacks. Our mission is to safeguard every user with innovative proactive protection, detection, and response technologies, aiming to stay ahead of malicious actors and anticipating the threats of the future.Join a global engineering organization that sits at the forefront of Microsoft’s endpoint security innovation. Our team builds the core protection, detection, and response capabilities that safeguard millions of devices worldwide. We operate across geos, driving advancements in AI‑powered threat response, cross‑platform security, and cost‑efficient engineering at massive scale.Our team is looking for Software Engineer II's and Senior Software Engineers to join us in shaping the standards and technology that companies depend on as AI transforms businesses. You’ll collaborate with Microsoft Research and cross‑functional engineering groups to push the boundaries of what modern security can do, especially in areas like reputation systems, heuristics, and automated incident response.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.ResponsibilitiesWork on one of the most advanced endpoint security platforms in the worldPartner with world‑class researchers and engineersInfluence architecture and strategy across multiple security domainsBuild features that protect customers from emerging and sophisticated threatsBe part of a team that values innovation, engineering excellence, and impactEmbody our culture and values.QualificationsRequired Qualifications: Bachelor's Degree in Computer Science or related technical field AND 2+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C, Java, JavaScript, or PythonOR equivalent experience.Other Requirements: Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings:Microsoft Cloud Background Check: This position will be required to pass the Microsoft background and Microsoft Cloud background check upon hire/transfer and every two years thereafter.Preferred 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.2+ years of experience designing, developing, or maintaining secure software systems, with applied knowledge of authentication, data protection, access control, and secure coding practices.1+ year of experience with software performance analysis and optimization of native code (C/C++)1+ year of experience with using AI models and agentic flows#MSFTSecurity #MSFTFraudProtectionSoftware 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:Software Engineering IC3 - The typical base pay range for this role across the U.S. is USD $102,100 - $202,200 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 $133,800 - $219,200 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.