Graham Williamson Email & Phone Number

Wollongong, Nsw, Au

Wollongong, New South Wales, Australia

Focused on developing and enhancing Security Operations Center (SOC) and Incident Response (IR) capabilities, ensuring robust and effective cyber security measures for the organisation.* Developed and refined SIEM use cases to enhance threat detection and response capabilities.* Leveraged detection engineering methodologies and processes to design and implement effective threat detection solutions tailored to organisational needs.* Led the rollout and deployment of Endpoint Detection and Response (EDR) solutions to over 250 agents, improving endpoint security.* Managed alert handling processes to ensure a timely and effective incident response.* Implemented and maintained Network Intrusion Detection Systems (NIDS) to monitor and protect network infrastructure.* Rolled out and deployed a comprehensive vulnerability management program, including scan policies and remediation processes.* Drafted and implemented security policies to guide and enforce best practices across the organisation.* Generated triage and alert playbooks to streamline incident response procedures and improve efficiency.

Wollongong, New South Wales, Australia

Developed and maintained secure infrastructure to support advanced cyber security solutions, ensuring robust and reliable systems for the organisation.* Built and maintained secure CI/CD build pipelines, enhancing the efficiency and security of software development and deployment processes.* Developed and hardened container environments, ensuring secure and resilient deployment of applications.* Designed and implemented additional systems to support Python development, providing robust and scalable solutions for various projects.* Led the migration of cloud-based CI/CD platforms to on-premise environments, improving control, security, and compliance.* Collaborated with cross-functional teams to integrate security best practices into the development lifecycle, fostering a culture of security awareness.* Conducted regular security assessments and vulnerability analysis to identify and mitigate potential risks, ensuring the integrity of the development environment.* Provided expertise in secure coding practices and automated security testing, improving the overall security posture of applications.

Canberra, Australia

Led the Infrastructure Engineering team, managing the integration and optimisation of telecommunications infrastructure while collaborating with global teams.* Troubleshot and resolved urgent service-impacting outages, coordinating effectively with team members and departments across different regions to ensure minimal downtime.* Created high-level system requirements documentation based on the business users’ and developers’ needs and constraints, facilitating clear communication and alignment across international teams.* Collaborated with various teams worldwide to develop the best solutions to serve the business, fostering a cooperative and innovative work environment.* Led cross-team collaboration to roll out custom applications, resolve conflicting goals, and support the business roadmap, ensuring smooth project execution across multiple locations.* Planned and implemented the integration of telecommunications infrastructure following company acquisitions and mergers, maintaining seamless operations across various platforms and technology stacks.* Developed automation solutions for multiple applications and systems, enhancing overall stability and efficiency in a globally distributed environment.* Strategised and implemented public and private cloud infrastructure, optimising resources and improving product delivery across local markets.

Canberra, Australian Capital Territory, Australia

Led the technological vision and strategy for M5 Networks Australia, driving the development and deployment of the company's VoIP platform to align with business objectives.* Directed the planning and execution of technology initiatives, managing risk and fostering growth to support long-term business goals.* Collaborated with cross-functional teams to align technology strategies with overall business objectives, ensuring seamless integration and execution.* Identified and implemented innovative solutions to enhance service delivery and improve customer satisfaction.* Managed technology budgets and resource allocation to maximise efficiency and ROI.

Canberra, Australian Capital Territory, Australia

Led the planning and execution of a comprehensive data centre relocation for telecommunications equipment, ensuring minimal disruption and a seamless transition of active services.* Managed the migration of ISDN, E1, and SIP voice services, maintaining uninterrupted communication capabilities.* Oversaw the relocation of a multi-tenant VoIP PABX cluster, ensuring continued service for all clients.* Integrated the IPND system into the new data centre, maintaining compliance with regulatory requirements.* Coordinated the transfer of internal CRM, billing, and customer access portals, preserving data integrity and accessibility.* Ensured the seamless transition of web and email services, minimising downtime and maintaining user connectivity.

Canberra, Australia

Developed and maintained advanced intrusion detection capabilities for the Australian Defence Force Cyber Incident Response Team (ADFCIRT), protecting critical defence infrastructure from cyber threats.* Set up and managed commercial Network Intrusion Detection Systems (NIDS), including rule tuning to enhance threat detection accuracy and reduce false positives.* Administered a distributed, custom-built sensor network to effectively monitor and respond to potential threats across multiple locations.* Supported and maintained additional security systems, such as packet capture solutions, Security Information and Event Management (SIEM) systems, and antivirus (AV) engines, contributing to a layered security approach.* Innovated and implemented new methods for detecting and mitigating existing and emerging threats, improving overall security measures.* Provided expert security advice and guidance to various Defence projects, ensuring compliance with best practices and enhancing system security.* Regularly maintained and administered Tier 3 systems to ensure high availability and performance.* Managed Microsoft SQL Server databases, maintaining data integrity and performance.* Performed system administration tasks for Red Hat Enterprise Linux (RHEL) and Windows environments, supporting smooth and secure operations.

Canberra, Australia

Responsible for maintaining and enhancing the infrastructure supporting M5 Networks' VOIP solutions, catering to small and medium-sized businesses. Ensured the seamless operation of all components, from desktop phones to backend billing systems.* Configured and managed Red Hat Cluster to provide high availability (HA) for mission-critical Apache servers, ensuring maximum uptime and reliability.* Implemented, troubleshooted, and supported various open-source and proprietary in-house software across multiple operating systems, optimising system performance and stability.* Collaborated with the operations team to develop and implement solutions for complex call flow issues within the hosted phone system platform, enhancing user experience and system functionality.* Monitored production systems to identify and proactively address issues, maintaining optimal performance and reducing downtime.* Worked closely with developers to build and maintain a robust application infrastructure for custom VOIP services, ensuring supportability and scalability.Planned and executed system upgrades and maintenance tasks across different time zones and maintenance windows, minimising disruptions to service.* Developed multiple PHP and Python web tools to streamline workflows for various teams, improving efficiency and enabling the development of new, supportable customer features.* Provided on-call support and emergency maintenance on a monthly rotation, ensuring rapid response and resolution to critical issues.

Canberra, Australian Capital Territory, Australia

* Managed and maintained deployable systems, ensuring mission readiness and functionality.* Performed technical support and troubleshooting for complex systems and equipment.* Coordinated with team members to ensure timely and effective systems deployment in field operations.

Canberra, Australian Capital Territory, Australia

* Reviewed and provided security architecture assessments, ensuring robust protection for IT systems.* Planned and managed projects to meet deadlines efficiently, leveraging available resources.* Researched IT and software vulnerabilities trends to stay ahead of emerging threats.* Installed and maintained critical security equipment, including firewalls, gateways, routers, switches, and Intrusion Detection Systems (IDS).* Conducted first-line analysis of alerts from IDS to identify and address potential threats.* Developed and maintained in-house deployable packet capture and NIDS sensors for enhanced monitoring and response.* Assisted in the creation of Standard Operating Procedures (SOPs), System Design Documentation (SDD), System Manuals, Standing Instructions (SI), and Bench Level Instructions (BLI).* Designed and built multiple cyber ranges used in large-scale multinational military exercises.

Richmond, New South Wales, Australia

* Maintained and serviced fixed and deployable air traffic control systems, ensuring operational reliability and performance.* Performed routine and corrective maintenance to support air traffic control operations.

Masters, Cyber Security

Education record