Senior Systems Administrator

Motion Recruitment; New York (NY); Hybrid; USD 160,000 - 180,000; Full time

Benefits offered by this job

Healthcare

401(k) retirement

Hybrid work schedule

NYC office

Job summary

Motion Recruitment is seeking a Senior Systems Administrator in New York, NY, with 6+ years in infrastructure engineering to own and optimize a hybrid Windows environment across on‑prem and cloud platforms.

You will collaborate with the Head of IT, design scalable systems, manage 365/Azure, and develop SOPs and runbooks while ensuring security, DR, and executive support. This role requires hands‑on leadership and strong scripting skills.

Qualifications

• 6+ years of infrastructure engineering and systems administration in demanding environments.
• Proven mastery of Windows Server components: AD, Entra ID, GPO, DNS, DHCP, DFS, WSUS, Hyper-V.
• Hands-on Microsoft cloud experience: 365, Azure networking, storage, VMs, app integrations.
• Hybrid AD, multi-site forests, and endpoint management across Windows 10/11.
• Strong PowerShell scripting to automate admin workflows.
• Solid enterprise networking knowledge (VLANs, routing) and SOC 2/security controls.
• Familiarity with Linux, AWS, GCP, and Google Workspace.

Responsibilities

• Own day-to-day administration and optimization of the firm’s Windows infrastructure, on‑prem and cloud.
• Collaborate with IT leadership to design, deploy, and maintain scalable systems.
• Manage Microsoft 365 and Azure identities, RBAC, storage, and networking.
• Create and maintain SOPs, runbooks, and proactive monitoring tools.
• Provide high-touch support for executives and end-users, including escalations.
• Oversee backup, DR, and business continuity planning.
• Enforce endpoint security and compliance to audits.
• Participate in on-call rotations to ensure system reliability.

Skills

Windows Server administration

Active Directory

Azure AD / Entra ID

Group Policy

DNS

DHCP

DFS

WSUS

Hyper-V

PowerShell scripting

Automation

Endpoint management

SOC 2 / security controls

Linux administration (Debian/Fedora)

AWS

GCP

Google Workspace

Aruba Wi‑Fi

Education

Bachelor's degree in Computer Science or Information Systems

Tools

Microsoft 365

Azure

Linux (Debian/Fedora)

AWS

GCP

Google Workspace

Aruba Wi‑Fi

Virtualization (Hyper-V)

Job description

Job Title: Senior Systems Administrator

Location: New York, NY (Hybrid)

*Must be located/authorized to work in the US without visa sponsorship or transfer now or in the future. No C2C inquiries, please*

Our client is a private wealth and multi-asset investment management firm overseeing a portfolio across public and private markets, real estate, and alternative investments. Operating with the agility of a boutique office alongside institutional-grade standards, the firm places critical emphasis on operational resilience, data privacy, and technological infrastructure across its corporate and executive operations.

As the Senior Systems Administrator, you will step in as a hands-on technical co-owner of the firm’s core IT infrastructure and daily operations. Working in close collaboration with the Head of IT and a senior systems peer, you will serve as the operational bridge between strategic planning and on-the-ground execution across a hybrid Microsoft ecosystem. This role is designed for a senior engineer who thrives on complete environment ownership—taking charge of enterprise systems projects, standardizing runbooks, optimizing cloud and on-premises platforms, and providing high-touch technical leadership across all corporate and principal touchpoints.

Requirements

• 6+ years of progressive infrastructure engineering and systems administration experience, ideally within financial services, private equity, or similarly demanding environments.
• Deep technical mastery of Windows Server components, including Active Directory, Entra ID (Azure AD), Group Policy, DNS, DHCP, DFS, WSUS, and Hyper-V.
• Extensive hands-on experience managing Microsoft cloud services, specifically Microsoft 365, Azure networking, storage, virtual machines, and enterprise application integrations.
• Proven track record architecting and maintaining hybrid AD configurations, multi-site/multi-domain forests, and endpoint management across Windows 10/11 environments.
• Strong automation and scripting skills, particularly with PowerShell, to streamline administrative workflows and systems maintenance.
• Solid working knowledge of enterprise networking fundamentals (VLANs, routing, Aruba Wi-Fi) and security frameworks (SOC 2 and financial services controls).
• Familiarity with cross-platform and multi-cloud environments, including Linux administration (Debian/Fedora), AWS/GCP, and Google Workspace.
• Bachelor’s degree in Computer Science, Information Systems, or equivalent combination of industry certifications and enterprise experience.

Responsibilities

• Own the day-to-day administration, availability, and optimization of the firm’s enterprise Windows infrastructure across on-premises and cloud environments.
• Partner directly with the Head of IT and senior infrastructure team members to design, deploy, and maintain scalable systems across all corporate facilities.
• Administer Microsoft 365 and Azure environments, managing identity governance, role-based access controls, storage, and virtual networking.
• Formulate and maintain operational standard operating procedures (SOPs), comprehensive runbooks, and proactive monitoring tools to prevent recurring issues.
• Deliver white‑glove, high‑touch support for corporate end-users and executive principals, addressing complex technical escalations across office and residential technologies.
• Oversee backup, disaster recovery, and business continuity protocols to safeguard mission-critical data and operations.
• Enforce endpoint management and device security solutions to align with regulatory compliance and institutional audit requirements.
• Participate in an on‑call escalation rotation to maintain system reliability for executive and trading functions.

This role provides a competitive compensation package featuring a base salary range of $160,000 to $180,000, an annual discretionary performance bonus, and comprehensive healthcare and retirement benefits. The position offers a flexible hybrid work schedule based out of the firm's New York office, fostering a high-trust, collaborative culture where autonomy, operational excellence, and direct technical impact are highly valued.

Posted By: Emily Rose O'Connell