Sr. Systems Engineer - SME

Sr. Systems Engineer / SME Remote within the U.S. (EST Time Zone Preferred) Contract – 6 months (potential for extension) Job Overview We are seeking a highly skilled Senior Systems Engineer/Subject Matter Expert to join our team, supporting and optimizing a full suite of enterprise IT systems. This role encompasses responsibility for email platforms (Exchange, Microsoft 365, Proofpoint), core infrastructure (Active Directory, Azure, VMware), and related security, reliability, and compliance initiatives. The ideal candidate will bring a broad background in systems engineering with deep expertise managing Exchange Server (on-premises and hybrid), Microsoft 365, Proofpoint, Azure services, and VMware environments. This position is fully remote, with preference for candidates in the EST time zone to align with our business operations. Key ResponsibilitiesDesign, implement, and maintain Exchange Server (2013/2016/2019/on-premises, hybrid), Microsoft 365 email solutions, and Azure-based mail and directory servicesLead migrations and coexistence between on-premises Exchange and Microsoft 365, ensuring minimal downtime and data integrityManage, configure, and support Proofpoint email security solutions, including policy development, filtering, DLP, encryption, and threat protectionAdminister VMware environments to support virtualized Windows server infrastructure, including performance tuning, provisioning, and upgradesMonitor system performance and troubleshoot issues across email flow, virtual servers, Azure services, and security platformsManage Active Directory (AD), Azure AD, and identity/access management, including OAuth, SAML, and MFA configurationsImplement and maintain email security protocols (DMARC, DKIM, SPF) and advanced transport/security rulesAutomate routine administrative tasks and workflows using PowerShell for Exchange, Microsoft 365, Azure, VMware, and Proofpoint environmentsCollaborate with security and compliance teams to investigate and remediate email and infrastructure-related incidentsDevelop, update, and maintain documentation on system configurations, processes, and troubleshooting guidesRequired Qualifications7+ years of experience as a Systems Engineer with significant responsibility for Exchange Server, Microsoft 365, and core Windows infrastructureExtensive hands-on experience with Microsoft Exchange (2013, 2016, 2019, and Exchange Online), including hybrid and migration projectsStrong experience administering Proofpoint, including configuration, policy management, DLP, and encryptionDirect experience managing VMware environments for Windows servers and core applicationsProficiency in PowerShell scripting for automation and management across multiple platformsSolid hands-on experience with Active Directory, Azure AD, identity management, and access controlsFamiliarity with security protocols including SPF, DKIM, DMARC, and anti-phishing solutionsExcellent troubleshooting, documentation, and communication skills; ability to take initiative and work independently in a remote environmentPreferred QualificationsExperience performing email/system migrations (on-premises to Microsoft 365, tenant-to-tenant)Experience with Microsoft Defender for Office 365 and other advanced email security toolsKnowledge of networking concepts relevant to email/email security and virtualized environmentsMicrosoft and Proofpoint certifications (e.g., MS-102, MS-203, Proofpoint Certified Protection Professional), VMware certifications, and/or Azure certifications are a plusAll qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.Originally posted on Himalayas