Top Network Security Jobs in Sydney

Lead technical presales, validation, demonstrations, architectural design, onboarding oversight, and customer expansion for Cloudflare enterprise solutions. Partner with account executives to map customer infrastructure to DNS, CDN, Zero Trust, security, and developer platform architectures. Own technical discovery, proof-of-concept planning, adoption strategy, QBRs, and revenue-aligned outcomes while advising engineering and executive stakeholders. Use AI automation to streamline technical workflows, documentation, and customer enablement.

Designs, implements, integrates, tests, and commissions OT cybersecurity infrastructure for railway and critical-infrastructure projects. Defines secure architectures, network segmentation, identity controls, threat detection, cyber recovery, and IT/OT security platforms. Translates IEC 62443, CLC/TS 50701, NIST, ISO, and Australian regulatory requirements into controls and assurance evidence. Coordinates technical teams, supports FAT/SAT testing and operational handover, manages delivery risks, and mentors engineers.

Develops and manages HPE Aruba Networking certification programs, exam blueprints, practice items, expert-level lab environments, topologies, and technical learning content. Coordinates certification workshops, subject matter experts, contractors, operations teams, and lab engineers. Validates exam configurations, maintains exam quality and integrity, analyzes performance data, supports candidate enablement, and manages related content-development projects. Requires strong technical writing, networking expertise, communication, problem-solving, and collaboration skills.

Designs, implements, and refines threat detection and response use cases aligned with MITRE ATT&CK and the Cyber Kill Chain. Collaborates with threat intelligence, incident response, forensics, and security operations teams; analyzes attack patterns and security events; participates in red-team and penetration-testing exercises; tracks emerging threats; and reports detection effectiveness metrics to leadership. The role also investigates anomalies, correlates artifacts across datasets, and supports proactive defense strategies.

Manages technical and commercial relationships with enterprise customers across Sydney. Responsibilities include renewals, upselling, cross-selling, sales presentations, product demonstrations, proof-of-concepts, RFI/RFP responses, pipeline forecasting, sales administration, customer advocacy, service quality monitoring, and coordinating requirements with Product, Marketing, and Engineering. Requires IT security and compliance knowledge, strong communication and presentation skills, autonomy, analytical problem-solving, and regular customer travel.

Leads APJ MDR operations within a global 24/7 security service. Responsibilities include managing team leads and analysts, ensuring staffing and service-level performance, overseeing triage and investigation quality, handling escalations and major incidents, developing operational readiness, improving workflows through data and automation, and coordinating with threat intelligence, detection engineering, incident response, product, engineering, and customer-facing teams.

Lead enterprise sales across Australia and New Zealand’s public sector, federal government, healthcare, defense, and critical infrastructure markets. Own the full sales cycle, exceed ARR targets, develop strategic accounts, generate pipeline, and build executive relationships. Collaborate with channel partners, MSSPs, system integrators, and internal teams to expand cybersecurity adoption. Represent the company at industry events, provide market intelligence, and use AI tools to improve sales effectiveness and forecasting.

Build, operate, and harden network security controls across data centers, WAN, cloud connections, and network edges. Manage firewalls, VPNs, segmentation, access policies, remote administration, BGP security, vulnerability remediation, and DDoS readiness. Monitor security events, investigate incidents, and lead network incident response. Automate policy deployment and compliance checks using Python or Go, maintain security tooling through Git and CI/CD, and support ISO 27001 and SOC 2 audits.

Own the network security architecture for data center fabrics, WAN, backbone, internet, peering, and facilities networks. Define segmentation, zero-trust, tenant isolation, routing security, edge protection, device hardening, and security-as-code standards. Build automation prototypes, secure AI and HPC environments, evaluate security vendors, model threats, support audits, and review major network changes. Mentor engineers and communicate security risks and trade-offs to technical and executive stakeholders.

Manage critical customer accounts throughout the lifecycle, driving onboarding, product adoption, value realization, renewals, retention, and revenue growth. Serve as the primary customer contact, resolve issues, deliver technical demonstrations and reports, maintain accurate account information, analyze customer trends, and coordinate cross-functional outcomes. The role also supports customer success playbooks, training materials, product feedback, and process improvement.

Prospect, qualify, develop, and close new business across an assigned territory. Build account strategies, exceed revenue targets, develop enterprise customer relationships, and drive customer satisfaction and retention. The role sells complex cybersecurity and networking solutions to C-level executives, manages channel partner relationships, and grows market share within the region.

Designs, implements, and refines threat detection and response use cases aligned with MITRE ATT&CK and the Cyber Kill Chain. Collaborates with threat intelligence, incident response, forensics, and security operations teams; analyzes attack patterns; participates in red-team and penetration-testing exercises; develops security metrics and management reports; and leads junior analysts as needed. The role requires expertise in security monitoring, incident response, forensics, network and host controls, cloud security, and multiple forensic and SIEM tools.

Manage technical and commercial relationships with enterprise customers in New Zealand. Responsibilities include renewing and expanding contracts, delivering sales presentations, supporting proofs of concept, responding to RFIs and RFPs, forecasting pipelines, maintaining sales records, monitoring service quality, escalating customer issues, and advocating for customer requirements internally. The role requires IT security knowledge, strong communication and presentation skills, autonomous work, customer negotiation experience, and travel throughout the sales territory.

Design and deliver secure, scalable network infrastructure solutions across on-premises, hybrid, and cloud environments. Responsibilities include enterprise network transformation, cloud connectivity, data center modernization, network security segmentation, infrastructure automation, technology migrations, architecture reviews, and technical design governance. The role requires collaboration with architects, engineers, project teams, stakeholders, and enterprise clients, along with producing detailed technical documentation and translating business requirements into practical solutions.

Lead strategic engagement for a portfolio of Melbourne enterprise accounts, build executive relationships, drive adoption of Cloudflare solutions (Security, Performance, Zero Trust, AI), collaborate with partners and cross-functional teams to close multi-year deals, and mentor peers while maintaining pipeline rigor and account plans.

Lead strategic sales engagements with Australian federal civilian agencies, driving Cloudflare platform adoption across APS entities. Build long-term relationships, develop territory and partner strategies, create multi-year account plans, manage pipeline and forecasting, and collaborate with technical teams to ensure onboarding, deployment, and expansion tied to measurable outcomes.

Designs and supports network security infrastructure as a firewall engineer, performs remediation work, and uses DevOps tools including Bitbucket, Jenkins, JIRA, GitHub, Terraform, and Vault. The role requires at least six years of experience.

Lead cybersecurity consulting engagements to design and implement enterprise cyber resilience frameworks. Assess risks and vulnerabilities, advise on prevention/detection/response/recovery, own delivery and client relationships, mentor teams, drive business development, and implement resilience capabilities (e.g., recovery vaults, IREs).