Senior IT Systems & Support Engineer

Halcyon Financial Technology•New York, NY

6d•$90,000 - $120,000•Hybrid

About The Position

HalcyonFT is hiring a full-time Senior IT Systems & Support Engineer in the New York City Metropolitan Area. This hybrid role supports multiple clients both onsite and remotely, addressing a wide range of problems with expertise and judgment while working with end users at all levels of their organizations. The role focuses on high-touch, personalized technical support and proactive solutions that provide clients with a seamless experience. The engineer administers Microsoft 365 and Google Workspace; manages cloud identity and access, endpoint management, cybersecurity and compliance, and networking; and leads systems administration and cloud operations. The role also builds automation, uses approved AI tools to improve troubleshooting and documentation, and helps shape governance for their use. Responsibilities include incident response, root cause analysis, end-to-end delivery of changes and migrations, and maintaining clear runbooks and documentation. Key technologies include Microsoft 365, Google Workspace, Microsoft Entra ID, Intune, Windows and Apple endpoints, security and compliance tools, AI and automation tools, Cisco Meraki, IT operations platforms, Microsoft Azure, backup tools, and collaboration and business applications.

Responsibilities

Administer Microsoft 365 and Google Workspace, including users, licenses, policies, and third-party SaaS integrations.
Resolve complex email, collaboration, and file-sharing issues, using service health and audit data to identify problems proactively.
Manage identity and access across cloud platforms, including single sign-on, MFA, conditional access, and least-privilege, role-based access.
Own secure onboarding, role changes, and offboarding; troubleshoot authentication, federation, and application access issues.
Build automation to eliminate repetitive provisioning, reporting, and administrative work.
Use approved AI tools to accelerate troubleshooting and documentation, and help shape governance for their use.
Manage cloud-native endpoints from enrollment through retirement.
Deploy applications, configuration and compliance policies, security baselines, and encryption through Intune.
Maintain security controls across cloud, email, endpoints, and SaaS, including data loss prevention, retention, and alerting.
Investigate alerts and incidents, drive remediation, and support vulnerability management, hardening, and audits.
Support third-party risk management, cybersecurity policy management, business continuity, and governance.
Support networking for a distributed, cloud-first workforce, including DNS, DHCP, VPN, Wi-Fi, firewalls, and secure remote access.
Diagnose connectivity and performance issues between users, devices, and cloud services; maintain firewall policies and segmentation.
Lead incident response and root cause analysis for major outages and recurring issues.
Plan and deliver changes, upgrades, and migrations end to end, supported by clear runbooks and documentation.