Senior Manager – IT Infrastructure & Operations

Company Overview

Throughout our worldwide network of experts, clients and communities, we are renowned for our leadership in fire protection engineering – a legacy of responsibility we have proudly upheld since 1939. Today, our expertise extends broadly across closely related security and risk-based fields – from accessibility consulting and risk analysis to process safety, forensic investigations, security risk consulting, emergency management, digital innovation and more.

Our engineers and consultants collaborate to solve complex safety and security challenges, ensuring our clients can protect what matters most. For over 80 years, we have helped mitigate risks that threaten lives, property and reputations. Through technology, expertise and industry-leading research, we remain dedicated to our purpose of making our world safe, secure and resilient.

At Jensen Hughes, we believe that creating and sustaining a culture of trust, integrity and professional growth starts with putting our people first. Our employees are our greatest strength, and we value the unique perspectives and talents they bring to our organization. 

Our wide range of Global Employee Networks connect people from across the organization, supporting career development and providing forums for individuals to share experiences on topics they're passionate about. Together, we are cultivating a connected culture where everyone has the opportunity to learn, grow and succeed together.

Job Overview

We are hiring a Senior Manager, IT Infrastructure & Operations, to lead the design, stability, and execution of our enterprise IT environment. This role is responsible for overseeing core infrastructure across Microsoft platforms, Azure (including GCC/GCC High), virtualization platforms, Linux and Windows server environments, Cisco networking, and enterprise systems—while ensuring high availability, security, and operational efficiency. 

This is a hands-on leadership role that blends deep technical expertise with operational discipline, people management, 
and cross-functional collaboration. 

Key Responsibilities 

Infrastructure Operations & Reliability

• Own day-to-day IT infrastructure operations across on-prem and cloud environments
• Ensure high availability, performance, resiliency, and recoverability of critical systems
• Lead incident response, root cause analysis, and continuous operational improvement 

Microsoft Ecosystem Ownership 

• Oversee Windows Server, Active Directory, Microsoft 365, and identity infrastructure
• Ensure secure configurations, access controls, and identity governance
• Maintain operational stability and lifecycle management of Microsoft platforms 

Cloud, Virtualization & Platform Infrastructure

• Manage Azure Environments, including GCC and GCC High
• Oversee server virtualization platforms supporting enterprise workloads
• Ensure reliable operation of both Linux and Windows server environments
• Partner with Information Security to implement secure architectures and compliance controls 

Network Infrastructure (Cisco)

• Oversee Cisco-based enterprise network infrastructure
• Ensure network reliability, performance, and capacity planning
• Drive coordination for upgrades, maintenance, and vendor support 

Infrastructure Modernization

• Lead infrastructure upgrades, patching, and technology lifecycle management
• Reduce technical debt and improve system resilience and operational efficiency
• Supporting automation and modernization initiatives 

Team Leadership & Execution

• Lead and develop the IT infrastructure and operations team
• Drive accountability, execution, and operational excellence
• Coach team members and foster a culture of reliability and ownership 

Must-have Qualifications

• 12–15 years of progressive IT infrastructure experience
• Strong expertise in Microsoft infrastructure technologies
• Hands-on experience with Azure, including GCC/GCC High
• Experience managing virtualization platforms and Linux/Windows server environments
• Strong knowledge of Cisco networking
• Proven people leadership and operational management experience 

Preferred Qualifications

• Experience supporting regulated or government-compliant environments
• Familiarity with cloud governance and security frameworks
• Exposure to infrastructure automation and modernization tooling 

Key Outcomes

• Reliable, resilient, and scalable IT infrastructure
• Secure and compliant Azure/GCC environments
• Improve