cover image
HW3

IT Network Administrator

On site

New york city, United states

Junior

Freelance

04-12-2025

Share this job:

Skills

Firewalls Monitoring Architecture Network Architecture Network Administration

Job Specifications

IT Network Administrator

Location: Downtown, New York

Industry: Banking / Finance

Employment Type: 1 year contract

We are seeking an experienced IT Network Administrator to support and enhance the performance, security, and reliability of our branch network infrastructure. This role offers the opportunity to collaborate with global teams, work with emerging technologies, and contribute to the ongoing development of our network environment.

Key Responsibilities

Network Operations and Security Management

Manage daily network operations, maintenance, and troubleshooting.
Monitor and analyse network performance; resolve operational issues and incidents promptly.
Diagnose and resolve various types of network failures; manage support tickets with third-party vendors.
Perform scheduled and ad-hoc network health checks to mitigate risks.
Coordinate hardware repairs, replacements, and participate in disaster recovery activities, including drills and documentation.

Network Architecture Optimization and Technical Standards Development

Design and optimize network architecture following industry best practices and HQ standards.
Evaluate and integrate new technologies to improve network performance.
Update and refine network management standards based on HQ requirements and local business needs.

Network Asset Management

Maintain updated network topology diagrams and asset records.
Manage VLANs, IP addresses, DNS, domain environments, and firewall configurations.
Oversee lifecycle management of network devices, including procurement, installation, cabling, labelling, inspections, and replacement.

Network Version and Patch Management

Install, configure, patch, and maintain network infrastructure supporting HQ and branch data centres.
Coordinate planned network upgrades with HQ teams and third-party vendors.
Perform firmware and version updates for network and security devices.

Network Business and Financial Management

Liaise with network vendors and contribute to budgeting, procurement, contracting, invoice review, and payment processes.
Ensure service quality, cost control, and compliance with SLAs in collaboration with Information Security and Risk teams.

Collaboration and Support

Work closely with cross-functional technical teams on network-related initiatives.
Provide technical support and knowledge-sharing to IT staff.

Requirements

Bachelor’s degree in computer science, Information Technology, Computer Engineering, or a related field, or equivalent experience.
Minimum of 3 years of progressive experience in network administration within a business environment.
Strong knowledge of network topology, LANs, VPNs, Wi-Fi, routers, switches, and firewalls.
Experience using network monitoring and management tools.
Fluency in English and Chinese (Mandarin).

How to Apply

If you are passionate about network technology and eager to contribute to a dynamic IT environment, we encourage you to apply.

Contact: J.Mccallum@hwthree.com and/or R.Jacobie@hwthree.com

About the Company

At HW3, we build high-performing teams in sectors where talent, precision, and speed matter most. What drives success is simple: The power of teams. From our regional bases in Europe and America, our consultants deliver specialist talent solutions to clients around the world. We focus on four key sectors where quality and speed are critical: Banking & Finance - Risk, regulation, cyber, and tech. Helping organisations adapt and perform in high-stakes environments. Life Sciences - Cross-functional teams for every phase, from c... Know more