Network Support Engineer

NTT DATA is hiring a Network Support Engineer in Sydney, offering a hybrid work setup. The company is a $30 billion technology services leader that serves 75% of the Fortune Global 100 and brings deep capabilities in AI, cloud, security, data centers and application services. This role carries a requisition reference (Req ID: 368521) and sits within an organization that emphasizes inclusive, adaptable and forward-thinking approaches to client needs.

The position is a mid to senior-level Network Operations Specialist, charged with overseeing the operational performance, availability and scalability of enterprise network systems. The role spans data centers, branch offices, cloud environments and remote users, blending hands-on technical work with leadership to ensure secure, reliable delivery of networking services.

It’s a good fit for a proactive network professional who can mentor junior team members, contribute to architectural decisions and help shape strategic infrastructure planning, while effectively managing incident response and continuous improvement initiatives.

What You’ll Do Day To Day In The Sydney Network Operations Role

Day to day, you’ll manage and maintain complex LAN and WAN environments that include routers, switches, firewalls, SD-WAN and wireless infrastructure, with responsibilities that span data centers, branch sites, cloud endpoints and remote users. You’ll also step in as an escalation point for high-severity incidents and carry out end-to-end root cause analysis to prevent repeats.

You’ll lead the deployment and ongoing optimization of enterprise network monitoring tools, ensuring visibility and faster response to events. In collaboration with cybersecurity and compliance teams, you’ll implement and enforce network security best practices while coordinating scheduled maintenance, firmware upgrades, configuration changes and network migrations.

Analyzing capacity trends will be part of your job, with recommendations to support scalability and performance improvements across the network. You’ll support change management processes, including planned upgrades and reconfigurations, and participate in network design discussions to help inform architectural decisions aligned with business goals.

Documentation plays a key role, so you’ll create standard operating procedures and guide junior staff through technical processes. You’ll support ITIL-based incident, problem and change management, ensuring work follows established practices and delivers consistent results.

There is also a requirement to participate in a 24/7 on-call rotation or provide senior-level oversight during critical incidents, reflecting the role’s responsibility for maintaining network availability around the clock.

Who Fits This Sydney Network Operations Role

Must-have capabilities include senior-level experience in network operations with deep knowledge of networking protocols and architectures, plus advanced troubleshooting skills and the ability to mentor junior teammates. The right candidate will demonstrate a track record of supporting enterprise networks across multiple environments and a comfort level with ITIL-aligned processes and incident management.

Nice-to-haves include experience deploying and optimizing enterprise network monitoring tools, a strong sense for network security practices in collaboration with cybersecurity and compliance teams, and involvement in network design discussions or architectural decisions that align with business goals. Familiarity with firmware upgrades, configuration changes and migrations, as well as experience contributing to SOPs, would also be beneficial.

Pay, Benefits And Location Details

Location for this role is Sydney, AU, with a hybrid work arrangement. The posting does not specify a salary figure or detailed benefits. It does note that in-office attendance may be required for meetings or events based on business needs, and that the company hires locally where possible to support client needs.

As with all NTT DATA postings, the employer emphasizes flexible staffing to meet client requirements and outlines that recruiters will use official @nttdata.com addresses for communications. Accessibility and equal opportunity statements are part of the posting, with guidance on accommodations and rights information provided by official channels.

Advice For Applicants For The Sydney Network Role

Lead your resume with a clear header that highlights senior network operations experience, explicitly naming LAN/WAN, SD-WAN, routers, switches, firewalls and wireless capabilities. Include a line about enterprise-scale networks you’ve supported across data centers, branch offices, cloud environments and remote users to mirror the job’s scope.

Demonstrate the must-have skills with concrete examples. Show a time you performed root cause analysis on a high-severity incident, how you mentored junior staff, and a setting where you influenced architecture or strategic infrastructure decisions. If possible, link to tangible outcomes that improved reliability or performance.

Prepare for interviews by framing your stories around incident response, network upgrades or migrations and changes managed through ITIL processes. Be ready to discuss how you enforce security best practices in collaboration with cybersecurity and compliance teams, as well as your approach to monitoring and capacity planning.

When you ask a question, stay laser-focused on the role’s specifics. A smart question could be: how does the team balance on-call responsibilities with project work, and what monitoring tools are currently deployed to support enterprise network operations? Or, how are architectural decisions reviewed and aligned with business goals in this role?