Senior Network and Security Engineer - 18 months maximum term contract

CMC Markets Stockbroking Limited; Council of the City of Sydney; On-site; AUD 90,000 - 120,000; Full time

Job summary

A global trading and investing company is seeking a skilled network engineer to design and support LAN, WAN, and cloud network infrastructure. This hands-on role includes creating network solutions, managing firewalls, and investigating incidents in a high-performance environment. The ideal candidate should have a CCNP qualification and strong experience with data centre networks and SD-WAN. This position offers an opportunity to work in a collaborative team and contribute to critical systems that drive the business.

Benefits

Birthday off

Free annual charity day

$0 trades on trading accounts

Unlimited access to learning resources

Free breakfast and coffee

Culture club activities

Qualifications

• CCNP qualification (minimum).
• Strong experience designing and supporting data centre and cloud networks.
• Hands-on experience with SD-WAN.
• Solid knowledge of Cisco switching (Catalyst, Nexus).

Responsibilities

• Design and implement network solutions for new projects and BAU growth.
• Support and enhance VPN connectivity with external partners.
• Manage and troubleshoot Palo Alto and Cisco ASA firewalls.
• Monitor performance and resolve complex network issues.

Skills

CCNP qualification

Strong experience in designing data centre networks

Hands-on experience with SD-WAN

Knowledge of Cisco switching (Catalyst, Nexus)

Clear documentation and communication skills

Tools

Palo Alto firewalls

Cisco ASA firewalls

Cisco Catalyst switches

Cisco Nexus switches

Job description

Overview

Why You Will Be Excited About This Role

This is a chance to work at the heart of a global trading and investing business, supporting the infrastructure that enables millions of market transactions every day. Your work will directly impact the stability, performance, and security of platforms relied on by traders and investors around the world.

You’ll join a role where your expertise truly matters. From designing and evolving enterprise-grade networks to resolving complex incidents in a live production environment, you’ll see the results of your work in real time. This is a role for someone who enjoys responsibility, ownership, and the satisfaction that comes from keeping critical systems running at their best.

Over the next 18 months, you’ll deepen your experience across data centre, cloud, SD-WAN, and security technologies, while working alongside highly capable engineers who value collaboration and shared problem solving. You’ll also strengthen your exposure to regulated, high-availability environments—experience that continues to be highly valued across financial services and technology sectors.

If you’re looking for a role that challenges you technically, recognises your contribution, and supports your ongoing professional growth, this opportunity offers a meaningful next step in your career.

Why You Will Like Working Here

Just some of the reasons you’ll love working here include :

• Leave benefits: Enjoy your birthday off to spend time with family and friends, on us! Utilise a free annual charity day to give back to your community.
• $0 Trades: Staff & family trading accounts with CMC Markets Invest have access to the best brokerage rates in the market - $0 trades for all domestic and international equity orders!
• Continuous learning: Our L&D offering covers both technical and performance training, ensuring you’re always learning new skills.
• Unlimited access to a dedicated benefits & wellbeing hub where you can save money through various retailer discounts, and make use of a variety of resources that will enhance your physical and mental wellbeing.
• Collaboration: We believe that great things happen when smart people work together, that’s why we’ve made the decision to work five days in the office.
• Office perks: Free breakfast cereals, condiments, and coffee, plus a culture club with activities ranging from fitness to trivia and social events.

What You Will Be Working On

In this role, you’ll design, build, and support LAN, WAN, and cloud network infrastructure, ensuring high availability, performance, and security.

• Designing and implementing network solutions for new projects and BAU growth
• Supporting and enhancing VPN connectivity with external partners
• Managing and troubleshooting Palo Alto and Cisco ASA firewalls
• Supporting Cisco Catalyst and Nexus switching environments
• Monitoring performance, capacity planning, and resolving complex network issues
• Investigating and responding to network and security incidents
• Identifying, advising on, and remediating network and security risks
• Working closely with internal teams to resolve connectivity and production issues
• This is a hands-on role where your decisions directly support trading platforms, client connectivity, and business continuity.

What Type Of Person Will Be Successful

You’ll thrive in this role if you enjoy working in production environments, take pride in building resilient systems, and stay calm under pressure.

You’ll bring :

• CCNP qualification (minimum)
• Strong experience designing and supporting data centre and cloud networks
• Hands-on experience with SD-WAN
• Solid knowledge of Cisco switching (Catalyst, Nexus)
• Clear documentation and communication skills
• Experience in trading, financial services, market data feeds, multicast, Cisco ACI, Meraki Wireless, or Palo Alto firewalls will be highly regarded.

How To Apply

We are growing the team and would love to learn more about you. Please send us:

• A copy of your resume
• A brief cover letter that outlines why you are a good fit for the role

We look forward to hearing from you!