Senior Infrastructure Engineer

Boies Schiller Flexner LLP; New York (NY); On-site; USD 140,000 - 200,000; Full time

Job summary

Boies Schiller Flexner LLP in New York seeks Senior Infrastructure Engineer to own the hybrid and cloud-first infrastructure, focusing on reliability, security, and automation across on-premises, Azure, and SaaS platforms.

You will design and support Microsoft technologies (Azure IaaS/PaaS, Windows Server, Entra ID, 365), lead modernization initiatives, and mentor junior staff while ensuring compliance and resilience.

Qualifications

• 5+ years designing and supporting hybrid/cloud infrastructure.
• Strong scripting and automation experience with PowerShell.
• Expertise in Windows Server and Azure/365 administration.
• Experience with disaster recovery and business continuity planning.

Responsibilities

• Design, implement, secure, and modernize hybrid and cloud infrastructure.
• Lead automation, IaC, and configuration management.
• Manage Active Directory/Entra ID and identity governance.
• Support Microsoft 365 services and security-focused UX.
• Mentor junior engineers and contribute to standards.

Skills

Automation

PowerShell

Scripting

Project management

Documentation

Education

Bachelor’s degree or equivalent

Microsoft certifications (Azure/365/Security)

Tools

Hyper-V

Azure Virtual Desktop

Azure

Microsoft 365

Job description

The Senior Infrastructure Engineer is responsible for the architecture, engineering, implementation, security, and lifecycle management of the firm’s hybrid and cloud-first infrastructure. This role owns the reliability, scalability, availability, and protection of enterprise systems and firm data across on‑premises, cloud, and SaaS platforms. The position emphasizes automation, modern Microsoft cloud technologies, security‑by‑design, and operational excellence.

Principal Duties and Responsibilities

• Design, implement, maintain, secure, and modernize server, storage, and virtualization platforms across firm offices, datacenters, and Microsoft Azure.
• Architect and support hybrid and cloud-native solutions using Microsoft Azure IaaS/PaaS, including compute, storage, networking, backup, and disaster recovery.
• Administer and evolve Windows Server 2022 environments, including high availability, patching, configuration management, and lifecycle planning.
• Manage and maintain Microsoft Entra ID (Azure AD), hybrid identity, conditional access, MFA, and identity governance.
• Design, implement, and support Microsoft 365 services including Exchange Online, Microsoft Teams, SharePoint Online, and OneDrive, with a focus on security and user experience.
• Lead email, collaboration, and identity modernization initiatives, including decommissioning of legacy on‑premises systems where appropriate.
• Administer and optimize virtualization platforms such as HyperV (including HA, DRS, SRM) and/or Azure-native alternatives.
• Manage and support virtual desktop and application delivery platforms (e.g., Azure Virtual Desktop).
• Oversee enterprise storage, backup, and disaster recovery solutions using modern platforms (Azure Backup, Azure Site Recovery, Veeam or equivalent).
• Monitor system health, capacity, performance, cost, and security metrics; proactively recommend and implement improvements.
• Implement infrastructure automation and configuration management using PowerShell, templates, and infrastructure-as-code practices
• Partner with Security, Network, and Application teams to design secure, resilient solutions and support business applications (including SQL Server workloads).
• Ensure environments meet firm security, compliance, and resiliency standards,.
• Maintain accurate and current technical documentation, architecture diagrams, and operational procedures.
• Participate in incident response, root cause analysis, and continuous improvement initiatives.
• Mentor junior engineers and contribute to infrastructure standards and best practices.

Position-Specific Skills and Requirements

• 5+ years of experience designing, implementing, and supporting enterprise infrastructure in a hybrid or cloud-first environment.
• Expert-level experience with Microsoft Windows Server (2019/2022) and enterprise Active Directory/Entra ID architectures.
• Strong hands-on experience with Microsoft 365 and Azure administration (compute, networking, storage, identity, security).
• Working knowledge of SQL Server 2019/2022 infrastructure and high-availability concepts (Always On, backup/recovery).
• 5+ years of experience supporting Hyper-V environments; experience with cloud-native platforms strongly preferred.
• Experience with Azure Virtual Desktop and/or Citrix Virtual Apps and Desktops.
• Hands-on experience with enterprise backup, disaster recovery, and business continuity planning.
• Strong scripting and automation skills; PowerShell required, infrastructure-as-code experience preferred.
• Experience managing certificates, PKI, encryption, and secure communication protocols.
• Familiarity with modern endpoint and device management solutions (e.g., Microsoft Intune, MDM, MAM).
• Strong troubleshooting, analytical, and problem-solving abilities.
• Excellent communication, collaboration, and documentation skills.
• Demonstrated ability to manage projects, prioritize work, and deliver solutions in a fast-paced environment.

Education and General Requirements

• Bachelor’s degree (BA or BS) required or equivalent professional experience.
• Current or advanced Microsoft certifications (Azure, Microsoft 365, Security) strongly preferred.
• Attributes expected include integrity, reliability, initiative, attention to detail, and a continuous improvement mindset.
• Ability to work independently as well as collaboratively within the Information Systems team.
• Ability to meet deadlines and effectively complete both operational and project-based work.
• Strong written and verbal communication skills, able to interact effectively with personnel at all levels.

Travel Requirements

• Ability to engage in occasional off‑site travel as required to meet business and operational needs.

The firm is an equal opportunity employer and does not discriminate on the basis of race, color, religion, sex, sexual orientation, national origin, age, disability, or protected veteran status.