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Systems Administrator III

Job in New York, New York County, New York, 10261, USA
Listing for: Ampcus Inc
Full Time position
Listed on 2026-01-01
Job specializations:
  • IT/Tech
    Cybersecurity, Network Security
Job Description & How to Apply Below
Location: New York

Ampcus Inc. is a certified global provider of a broad range of Technology and Business consulting services. We are in search of a highly motivated candidate to join our talented Team.

Job Title

Systems Administrator III

Location

New York, NY

About Opportunity
  • As a Network Engineer, you will be responsible for designing, implementing, and maintaining secure network infrastructures to protect organizations from cyber threats.
  • This role combines networking expertise with cybersecurity measures to ensure data integrity, confidentiality, and availability.
Where you will make an impact
  • Maintain network resources, including configuring network switches, server hardware, VoIP systems, operating systems, applications, and services in a wired and wireless environment.
  • Maintain and improve network operations and provide support to network users.
  • Configure and maintain network components (e.g., Cisco Meraki routers, switches, etc.) and services (e.g., connectivity and access).
  • Perform custom configuration for complex network devices such as firewalls and VPN concentrators. Reconfiguring network equipment is necessary to handle environmental changes.
  • Perform network troubleshooting to isolate and diagnose complex network problems with minor supervision, implementing solutions with limited system-wide impact.
  • Escalate issues with broader implications for the entire network to higher-level network personnel, such as the Network Manager or Technical Service Director.
  • Maintain the campus's wireless authentication tool(s) and serve as the primary point of contact for campus community support.
  • Utilize monitoring tools to capture and analyze traffic, maintain uptime, generate usage reports and spot trends.
  • Create and maintain documentation and diagrams as needed when assets are added or removed.
  • Support VOIP telecom environments, including adding/moving/changing phone equipment and ensuring that our environment stays current with product releases.
  • Provide users with technical support and establish network users, user environments, and directories for networks being installed.
  • Install and test necessary software and hardware in accordance with standards-based settings and client Change Management processes.
  • Design and deploy security protocols, firewalls, and intrusion detection systems.
  • Continuously monitor network traffic for unusual activity and potential threats.
  • Investigate and resolve security breaches and vulnerabilities.
  • Conduct regular assessments to identify weaknesses and improve defenses.
  • Ensure adherence to industry security standards and regulations.
What will you bring
  • Higher Education background and knowledge with 5 years of related experience and/or training.
  • Experience and knowledge of configuring and troubleshooting Cisco IOS networking devices.
  • Experience and working knowledge of Microsoft Server operating systems, Microsoft Active Directory Domain Services, and Server roles such as DNS and DHCP.
  • Has broad-based knowledge and hands-on experience implementing network switches.
  • Practical experience with Cisco phone systems and VOIP system administration.
  • Excellent time management, planning and interpersonal skills.
  • Ability to work effectively with end-users, understand their technical and operational needs and translate them into viable technical solutions.
  • Excellent verbal and written skills, encompassing complete understanding of the English language with exceptional communication skills.
  • Strong organizational and leadership skills.
  • Willingness to work as a contributing member of the team, including working cross functionally.
  • Must participate in on-call rotation.
  • Proficient in network access control systems.
  • Ability to define problems, collect data, establish facts, and draw valid conclusions.
  • Working knowledge of Linux and Windows server operating systems.
  • Familiarity with network monitoring systems such as Solar Winds.
  • Strong knowledge of network infrastructure and security protocols (SSL/TLS, IPSec, VPNs).
  • Experience with Cisco firewalls, intrusion detection systems, and endpoint security.
  • Working knowledge of AWS, Rubrik and FortINAC.
  • Certifications such as CCNA and CompTIA Security are highly valued.
  • Analytical mindset with problem-solving skills to address security challenges.
Education
  • Cisco Certification Preferred.

Ampcus is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veterans or individuals with disabilities.

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