Sr. Systems Engineer

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 Responsibilities
Infrastructure 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.