Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

CyberSecurity/SysAdmin

DataPerk

For more than 25 years, DataPerk has provided managed IT services, cybersecurity, cloud solutions, and strategic technology guidance to businesses throughout the Southeast and beyond. We pride ourselves on delivering exceptional customer service and building long-term partnerships with our clients. As a Tier 3 Systems Administrator , you will serve as a senior technical resource responsible for resolving complex escalations, leading infrastructure projects, mentoring service desk staff, and helping clients leverage technology to achieve their business goals.

Position Overview The Tier 3 Systems Administrator is responsible for supporting and maintaining a variety of client environments while serving as the highest level of escalation for technical issues. This role requires extensive experience with Microsoft technologies, cloud platforms, networking, virtualization, cybersecurity, and automation.

Success in this position requires a balance of strong technical expertise, customer service skills, project leadership, and the ability to thrive in a fast-paced Managed Services Provider (MSP) environment supporting multiple clients.

Serve as the final escalation point for Tier 1 and Tier 2 support teams, resolving complex issues involving servers, cloud services, networking, security, and business-critical applications.

Perform in-depth troubleshooting, root cause analysis, and long-term remediation to reduce recurring issues.

Microsoft 365 & Cloud Administration Manage and support Microsoft 365 environments including Exchange Online, SharePoint, Teams, Entra ID, and Intune.

Design, deploy, and maintain Azure-based solutions, including virtual machines, networking, storage, backups, and identity services.

Assist clients with cloud migrations, tenant consolidations, and modernization initiatives.

Server & Infrastructure Management Administer Windows Server environments, Active Directory, Group Policy, DNS, DHCP, and related infrastructure services.

Maintain virtualized environments using VMware and Hyper-V technologies.

Monitor infrastructure health and proactively address performance, capacity, and reliability concerns.

Network & Security Operations Troubleshoot and support firewalls, switches, wireless systems, VPNs, VLANs, and network connectivity issues.

Implement and maintain security controls including MFA, endpoint protection, email security, vulnerability management, and conditional access policies.

Project Implementation Lead infrastructure projects including server deployments, cloud migrations, network upgrades, cybersecurity initiatives, and disaster recovery implementations.

Develop technical plans, coordinate implementation activities, and ensure projects are completed according to scope and timeline.

Create and maintain project documentation and knowledge base articles.

MSP Service Delivery Manage work efficiently across multiple client environments while meeting service level agreements (SLAs).

Communicate effectively with clients, providing clear updates and recommendations in both technical and non-technical language.

Collaborate with account managers, vCIOs, and engineering teams to identify opportunities for technology improvements and standardization.

Leadership & Mentoring Provide technical guidance and mentorship to service desk technicians and junior engineers.

Contribute to continuous improvement initiatives that enhance service quality and operational efficiency.

Requirements Bachelor's degree in a related field of study7+ years of progressive IT infrastructure and systems administration experience

Strong troubleshooting, communication, and customer service skills

Experience leading technical projects and mentoring other technicians

Preferred Certifications Microsoft Azure Administrator (AZ-104)

Microsoft 365 Administrator (MS-102)

Microsoft Azure Solutions Architect (AZ-305)

Cisco CCNA

VMware VCP

Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the CyberSecurity/SysAdmin in Brooklyn, NY vacancy
  •  ...USA Job Description Posted Wednesday, August 26, 2026 at 5:00 AM | Expires Sunday, September 27, 2026 at 4:59 AM TITLE: IT System Administrator POSITION OBJECTIVE: The IT System Administrator provides technical assistance and support to end users and is responsible for... 
    Suggested
    Work at office
    Flexible hours

    Inteplast Group

    Brooklyn, NY
    4 days ago
  •  ...Description Position Summary The IT System Administrator is responsible for supporting the organization’s information technology infrastructure, including end-user desktop systems, Windows and Linux servers, and the Global Shop ERP system. This position provides hands... 
    Suggested
    Work at office
    Remote work

    Trenton Systems

    Brooklyn, NY
    2 days ago
  •  ...Health IT, and Tribal sectors. Our highly certified experts build systems that drive efficiency, accelerate modernization, and ensure...  ...and innovative environment. Concept Plus is seeking a Systems Administrator to provide senior technical leadership supporting federal IT... 
    Suggested
    Work at office
    Local area
    Flexible hours

    Concept Plus

    Brooklyn, NY
    4 days ago
  •  ...-Time/Regular Provide Tier 3 technical support for Microsoft systems. Build, implement, and troubleshoot information systems within...  ...PowerShell scripts and other automation tools to streamline administrative tasks Identify opportunities to automate system monitoring, reporting... 
    Suggested
    Full time

    AAC

    Brooklyn, NY
    2 days ago
  •  ...Pride One Construction in Medina, OH is seeking an IT Manager and Systems Administrator to serve as the primary IT resource. This full-time, on-site role partners with external providers on cybersecurity, infrastructure, and strategic initiatives while actively troubleshooting... 
    Suggested
    Full time

    Workstream

    Brooklyn, NY
    1 day ago
  •  ...equivant is hiring a Lead Systems Administrator to own internal IT systems, migrating to a dedicated Microsoft 365 tenant as the company separates from a shared environment. You will manage Exchange Online, SharePoint/OneDrive, Teams, licensing, and identity across Okta... 

    Incognito Software Systems

    Brooklyn, NY
    4 days ago
  •  ...Job Summary equivant is hiring a Lead Systems Administrator to own the internal IT systems that the company runs on: migration to a new Microsoft 365 tenant, identity and access management (Okta and Microsoft Entra ID), and the Windows endpoint fleet. You will own corporate... 

    Incognito Software Systems

    Brooklyn, NY
    2 days ago
  •  ...Academic Systems Administrator Manhattan School of Computer Technology (MSCT) Brooklyn, NY Department: Administration / Information Technology Employment Type: Full-Time Reports To: Campus Executive Director / Leadership Team Position Summary Manhattan... 
    Full time
    Local area

    Manhattan School of Computer Technology

    West New York, NJ
    8 hours ago
  •  ...RTX is seeking a Principal System Administrator to support Windows and Linux enterprise environments in a DoD-focused setting. Responsibilities include designing, implementing, maintaining, patching, and troubleshooting Windows Server, Windows 11, and RHEL across a large... 

    Relha LLC

    Brooklyn, NY
    16 hours ago
  •  ...Saalex Corp. is seeking a Network and Computer Systems Administrator to join our Ridgecrest, CA team onsite. You will provide system administration and cybersecurity support for LITL systems operating in Live, Virtual, and Constructive environments in accordance with DoD... 
    Contract work

    Saalex

    Brooklyn, NY
    1 day ago
  •  ...Job Details (job location): Blue Ops - Valdosta, GA 31601 Role Summary The Senior Systems Administrator will own the reliability, security, and performance of critical IT infrastructure across Microsoft 365, cloud, on-premises, endpoint, identity, and collaboration platforms... 
    Permanent employment
    Work at office
    Local area

    Teal Drones Inc

    Brooklyn, NY
    4 days ago
  • R.A.S. Logistics Inc. in Indiana seeks an IT Support professional to assist internal users and minimize operational disruption. You will resolve software and hardware issues and contribute to department goals. The role requires Windows 10/11 expertise, basic networking...

    R.A.S. Logistics Inc.

    Brooklyn, NY
    2 days ago
  • $70k - $82k

     ...Bank, 4601 W 20th St., Greeley, Colorado, United States of America Job Description Posted Friday, August 28, 2026 at 8:00 AM Systems Administrator Platte Valley Companies JOB SUMMARY: Responsible for managing, maintaining, and optimizing an organization’s IT systems and... 
    Flexible hours
    Night shift

    Platte Valley Bank

    Brooklyn, NY
    2 days ago
  • $100k - $135k

     ...Saalex is seeking a Network and Computer Systems Administrator in Ridgecrest, CA. Saalex is an Engineering and Information Technology Services company with a focus on Test Range Operations and Management, Engineering and Logistics Services, Data Analytics and Business... 
    Full time
    Contract work
    Temporary work

    Saalex

    Brooklyn, NY
    1 day ago
  • $90k - $110k

     ...Systems Administrator Aurora, CO Active TS/SCI w/ Poly Compensation Range: $90,000 - $110,000 Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most... 
    Full time

    Cornerstone Defense

    Brooklyn, NY
    4 days ago
  •  ...maintenance, backup, and operational support of Epic applications and systems. In close collaboration with the ODBA team, the Senior ECSA...  ...and proficient across all facets of Epic Client Systems Administrator (ECSA) protocols. The Senior ECSA performs complex technical work... 
    Work at office

    Renown Health

    Brooklyn, NY
    2 days ago
  • $100k - $135k

     ...Zachary Piper Solutions is seeking a System Administrator to join the Security and Electronic team. The System Administrator will support the design, engineering, integration, operation, and maintenance of electronic security services. There are positions available in... 
    Remote work

    Zachary Piper Solutions

    Brooklyn, NY
    16 hours ago
  •  ...August 18, 2026 at 4:00 AM Under general supervision and with independent judgment, develops and maintains large computer applications/systems, including enterprise applications. Ensures assigned systems are working properly, evaluates application/system performance to... 
    Permanent employment
    Visa sponsorship

    Frankenmuth Insurance

    Brooklyn, NY
    1 day ago
  •  ...Provide expert-level administration, configuration, and engineering support for the client's Microsoft 365 environment Lead planning and execution of Microsoft 365 service updates, feature rollouts, and configuration changes under ITIL 4 change management practices Monitor... 
    Work at office
    Night shift

    Jobtailor

    Brooklyn, NY
    4 days ago
  •  ...Northrop Grumman Aeronautics Sector is seeking a Systems Administrator/Principal Systems Administrator to join our Ellsworth AFB, SD team. This role provides real-time support for ground systems, manages accounts and equipment, and ensures secure, compliant operations... 
    Flexible hours

    Northrop Grumman

    Brooklyn, NY
    16 hours ago
  •  ...Posted Tuesday, August 18, 2026 at 4:00 AM Koniag IT Systems, LLC, a Koniag Government Services company, is seeking an ITSM Platform Administrator to support KITS and our government customer in Washington, DC. This position requires the candidate to be able to obtain a... 
    Local area
    Flexible hours

    Koniag Services, Inc.

    Brooklyn, NY
    2 days ago
  • $60k - $70k

     ...Systems Administrator# Systems AdministratorWindsor Mill, MD 21244## OverviewSalary Range$60,000.00 - $70,000.00 SalaryPosition TypeFull TimeEducation LevelNot Specified## Description*At RELI Group, our work is grounded in purpose. We partner with government agencies... 
    Live in
    Remote work

    RELI Group, Inc.

    Brooklyn, NY
    4 days ago
  •  ...SEIU Local 2015 in California is seeking a Systems Administrator to support reliable, secure, and scalable technology infrastructure across statewide operations. You will manage servers, networks, cloud services, and collaboration tools while guiding modernization efforts... 
    Full time
    Local area

    Seiu 49

    Brooklyn, NY
    1 day ago
  •  ...RELI Group is seeking a Systems Administrator to manage enterprise IT infrastructure, ensure uptime, and support users. The role covers Windows/Linux servers, Active Directory, Exchange/O365, and virtualization platforms, with emphasis on security, backups, and incident... 

    RELI Group, Inc.

    Brooklyn, NY
    4 days ago
  • $87k - $89k

     ...flexibility and expertise across the cybersecurity field provides customized solutions to our customer's unique needs. Summary The System Administrator II provides system and infrastructure operations and maintenance support for EFMSS environments and associated IT... 
    Contract work

    Goldbelt

    Brooklyn, NY
    2 days ago
  •  ...The University of North Carolina Greensboro is seeking a Systems and Infrastructure Generalist in the University Registrar’s Office. This role acts as webmaster, supports reporting, and ensures data integrity across university systems. Responsibilities include system knowledge... 
    Work at office

    The University of North Carolina

    Brooklyn, NY
    4 days ago
  •  ...Hansel Auto Group is seeking a Systems Administrator to manage our IT backbone across multiple dealership locations. You will keep networks, servers, and core systems healthy, secure, and standardized, acting as a technical anchor for the help desk and mentoring junior... 

    Priority Dispatch

    Brooklyn, NY
    1 day ago
  •  ...Description Insight Global is partnering with an omnichannel retail client based in the Brooklyn area to hire a Senior NetSuite Systems Administrator. This is a permanent, full-time role working a hybrid schedule (2 days in office, 3 days remote). The ideal candidate has... 
    Permanent employment
    Full time
    Work at office
    Remote work

    Insight Global

    Brooklyn, NY
    1 day ago
  • $63.5k

     ...designation reflects the company’s commitment to hiring and supporting active‑duty and veteran employees. Responsibilities As a Systems Administrator , you will provide administration, operation, maintenance, and security support for information systems supporting the Print... 
    For contractors
    Work at office
    Relocation package

    Empower AI

    Brooklyn, NY
    16 hours ago
  • $45k - $56k

     ...workforce, responsive delivery, and a deep understanding of client mission needs. Job Summary Veterans Engineering is looking for a System Administrator to join our dynamic team in supporting critical infrastructure for our clients in the federal sector. As a System... 
    Contract work
    Temporary work
    Work at office
    Local area

    Aretum, Llc

    Brooklyn, NY
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to CyberSecurity/SysAdmin. Be the first to apply!