Senior Software Engineer - CTJ - Poly

Senior Software Engineer - CTJ - Poly | Microsoft Careers Skip to main content Microsoft Careers Careers Careers Search Search jobs Sign in Single PositionView All JobsSenior Software Engineer - CTJ - PolyUnited States, Virginia, Reston +2 moreApply nowAdd to cartFind out how well you match with this jobUpload your resumeJob descriptionCompany and benefitsJob number200044037Date postedJul 20, 2026Work site3 days / week in-officeTravelLess than 25%ProfessionSoftware EngineeringDisciplineSoftware EngineeringRole typeIndividual ContributorEmployment typeFull-TimeOverviewAre you excited by the opportunity to lead the design, delivery, and security of cloud-scale software that protects some of the world’s most sensitive and mission-critical environments?As a Senior Software Engineer in Microsoft’s Specialized Cloud team, you will own and drive highly reliable services that underpin internal security platforms and customer-facing cloud offerings. Your work will help safeguard mission-critical environments that require exceptional trust, compliance, resilience, and operational excellence. In this role, you will tackle complex systems, security, and reliability challenges in a fast-paced engineering environment; set technical direction; influence architecture; mentor engineers; and partner across security, operations, program management, and compliance teams to deliver secure, scalable, and resilient cloud services. 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 beyondResponsibilitiesLead the design, implementation, testing, and maintenance of cloud-scale services and platform components used in security-critical and highly regulated environments.Own significant service areas end to end, including architecture, quality, security, reliability, and operational health.Partner with security, operations, program management, compliance, and customer-facing teams to deliver integrated solutions across organizational boundaries.Mentor engineers through design guidance, code reviews, technical coaching, and modeling strong engineering practices.Lead investigations and resolution of complex live-site issues, including root-cause analysis, prevention planning, and operational improvements, and participate in and help mature 24x7 on-call practices, incident response, service health reviews, and safe deployment processes.Apply secure-by-design principles throughout the development lifecycle, including threat modeling, defense-in-depth, least privilege, and vulnerability remediation.Identify technical risks, drive clarity in ambiguous problem spaces, and deliver pragmatic solutions that balance customer needs, compliance requirements, and engineering excellence. 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 Python OR equivalent experience.Other Requirements:Security Clearance Requirements: Candidates must be able 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:The successful candidate must have an active U.S. Government Top Secret Clearance with access to Sensitive Compartmented Information (SCI) based on a Single Scope Background Investigation (SSBI) with Polygraph. Ability to meet Microsoft, customer and/or government security screening requirements are required pre-offer and...