We are seeking a Senior Infrastructure Engineer to join a growing technology team supporting complex enterprise IT environments. This is a hands-on individual contributor role responsible for designing, implementing, securing, and maintaining infrastructure across cloud, on-premises, and hybrid environments. The ideal candidate is a highly capable infrastructure professional who can operate independently, troubleshoot complex technical issues, contribute to architecture and technology strategy, and provide guidance to less-experienced engineers. This role offers the opportunity to work across a broad range of infrastructure technologies while contributing to the reliability, security, and ongoing evolution of enterprise environments. Key ResponsibilitiesInfrastructure Engineering • Design, deploy, configure, and maintain Microsoft Azure and Microsoft 365 environments, including identity, security, collaboration, and related cloud services. • Support Microsoft 365 environments across commercial and regulated government cloud environments, including GCC and GCC-High. • Configure and manage enterprise firewalls, including firewall rules, VPNs, security policies, and related security controls. • Monitor, troubleshoot, and optimize Microsoft Power Automate workflows. • Deploy, monitor, test, and remediate enterprise backup solutions. • Administer enterprise switching and networking infrastructure, including VLANs, routing, and network segmentation. • Manage on-premises and datacenter infrastructure, proactively identifying and resolving hardware, operating system, application, and connectivity issues. • Administer Windows and Linux server environments across physical, virtual, cloud, and hybrid infrastructure. • Help ensure infrastructure environments meet established availability, performance, and service-level objectives. Security & Compliance • Partner with security teams to identify, investigate, remediate, and prevent infrastructure vulnerabilities. • Apply security best practices throughout infrastructure design, implementation, and configuration. • Support security, compliance, and audit initiatives as needed. • Help maintain infrastructure in accordance with applicable security and compliance standards. Architecture & Technology Strategy • Establish and maintain infrastructure technology standards, configurations, and best practices. • Evaluate emerging technologies and make recommendations based on business requirements, security, scalability, and long-term value. • Participate in technology evaluations and build-vs.-buy decisions. • Contribute to infrastructure architecture and modernization initiatives. Collaboration & Mentorship • Provide technical guidance and mentorship to junior engineers and other technical team members. • Work with project managers, business stakeholders, and technical teams to translate requirements into effective infrastructure solutions. • Collaborate with external vendors, technology partners, and other third parties. • Maintain a professional, customer-focused approach when working with internal and external stakeholders. • Manage multiple priorities while working independently with limited day-to-day supervision. Required Qualifications • 7+ years of hands-on experience in IT infrastructure engineering. • Strong experience administering Microsoft Azure and Microsoft 365 environments. • Demonstrated experience with on-premises and hybrid Microsoft Active Directory environments. • Experience with enterprise virtualization technologies, including VMware and Hyper-V. • Strong experience with Windows Server 2016–2025, Windows 11, and Linux environments. • Experience administering enterprise firewall platforms, including SonicWall or comparable technologies. • Experience with enterprise storage platforms, including Pure Storage or comparable technologies. • Hands-on experience deploying, monitoring, troubleshooting, and remediating Veeam, Veeam ONE, and Veeam 365 backup environments. • Experience with HPE Aruba or comparable enterprise networking platforms. • Strong troubleshooting and problem-solving skills across on-premises, cloud, and hybrid environments. • Ability to work independently, prioritize competing demands, and take ownership of technical issues through resolution. • Strong communication and collaboration skills. Preferred Qualifications • Relevant Microsoft certifications such as AZ-500, MS-500, or equivalent. • SonicWall SNSA/SNSPA or comparable firewall certifications. • Aruba or other enterprise networking certifications. • Previous experience working in an MSP or managed services environment. • Familiarity with security and compliance frameworks such as CMMC, NIST 800-171, NIST 800-53, ISO 20000-1, or ISO 27001. • Experience supporting environments with heightened security, regulatory, or compliance requirements. Employment Type: FULL_TIME