Duncan Hall

Technology Executive | Former Global Head of IT, Tripadvisor | CIO | Head of IT | Cloud, Security & AI | Sydney

Sydney, New South Wales, Australia

About

I build and transform enterprise IT organisations. The kind that serve thousands of people across dozens of countries, run 24/7, and actually work. For over 20 years, I led IT at Viator and Tripadvisor, finishing as Global Head of IT with responsibility for 52 offices, 6,500 staff, a team of 100, and an annual budget of A$25M. During that time I reduced IT headcount by 25% through AI automation, cut ticket resolution times by 50%, improved customer satisfaction from 60% to 80%, and delivered a Zero Trust network that eliminated 80% of VPN usage. Since 2024 I have been consulting across cloud migrations, compliance, and infrastructure projects. I am now looking for a permanent CIO or Head of IT role in Sydney where I can do it again. Core strengths: Global IT strategy and transformation | Cloud (AWS, Azure) | Cybersecurity and compliance (PCI DSS, SOX, ISO 27001) | AI and automation | SaaS and IAM | Infrastructure | ERP | Vendor management | Team leadership

Experience

  • Technology Consultant at Independent Technology Consultant
    Jul 2024 - Present · 2 yrs 1 mo

    Providing strategic technology consulting across cloud migrations, compliance, and performance optimisation: - Led cloud migration projects for multiple organisations (Atlassian Jira/Confluence, O365, G-Suite) - Delivered compliance readiness assessments and implementations (PCI DSS, GDPR, ISO 27001) - Implemented observability solutions using DataDog and Grafana for enhanced system monitoring - Drove process improvement initiatives resulting in measurable cost reductions and operational efficiency gains

  • TripAdvisor (8 yrs 5 mos)
    • Senior Director Of Information Technology
      Nov 2019 - May 2024 · 4 yrs 7 mos

      Global Head of IT - Senior Director of IT at TripAdvisor in charge of IT & IT Operations servicing 52 offices globally. Responsible for IT Support, IT Operations, Enterprise Technology, Application Support and Workday ERP Finance teams for TripAdvisor’s entire 24x7 global digital business operations, encompassing employee desktop (full Microsoft Office suite), networks, VPNs, Zero-trust architecture and core infrastructure, including load balancers & firewalls. - Reduced IT headcount by 25% through AI automation (Moveworks) whilst improving service outcomes - Improved customer satisfaction from 60% to 80% and reduced ticket resolution times by 50% - Reduced P1 outages by 20% through intelligent monitoring and process improvement - Led 75 to 100 employees across 8 countries with A$25M annual budget - Managed A$17M in vendor contracts (Microsoft, Google, AWS, Cisco, Palo Alto)

    • Director of IT - Experiences
      Mar 2018 - Nov 2019 · 1 yr 9 mos

      IT Director at TripAdvisor Experiences. Based in Sydney in charge of our Corporate IT, Application Support, procurement and the security & compliance testing across multiple global offices, data centers and websites to ensure our commitment to SOX & PCI.

    • Director of IT
      Jan 2016 - Feb 2018 · 2 yrs 2 mos

      IT Director at TripAdvisor Attractions. Based in Sydney in charge of our Corporate IT, Application Support, procurement and the security & compliance testing across multiple global offices, datacenters and websites to ensure our commitment to SOX & PCI.

  • Viator (17 yrs 7 mos)
    • IT Director
      Jan 2016 - Jan 2017 · 1 yr 1 mo

      IT Director - in charge of Data Engineering, Corporate IT, Application Support, procurement and the security & compliance testing across multiple global offices/sites to ensure our commitment to SOX & PCI. Data Engineering is predominantly based in Sydney and is tasked with capturing, storing and supplying data for the analytics/BI team and other data driven business units. The team's data warehouse is built around Google BigQuery and leverages technology such as Google Data Studio, Tableau, Abobe Omniture, MS SSRS OLAP cubes. The custom ETL frameworks are written in perl and python and custom report and feeds utilize PHP & Java.

    • IT Director
      Jan 2011 - Jan 2016 · 5 yrs 1 mo

      IT Director, Operations Team Manager, Systems Developer and Administrator. Focusing on people's interaction with technology. Manage the infrastructure of Viator's web e-commerce platform and payment gateways to ensure stability, speed, security, and compliance (PCI DSS, etc.) while keeping costs to a minimum. Viator was purchased by TripAdvisor in 2014. Specialities: Managing both the people and the systems/infrastructure behind the high-performance ecommerce platforms and networks in Linux / Open source / Java / Windows server environments IT departmental & budget management. programme / project management Change management Business intelligence & reporting Ecommerce systems Contract negotiation Content management systems PCI & SOX compliance Disaster recovery Legacy systems Development and change management AWS Cloud management / puppet & DevOps On site private cloud & virtualization

    • IT Manager
      Jan 2008 - Jan 2011 · 3 yrs 1 mo

      IT Manager

  • Webmaster at Fox Interactive Media Group
    Sep 1996 - Jun 1999 · 2 yrs 10 mos

  • IT Manager at WorldPacific Technology Ltd
    Nov 1994 - Sep 1996 · 1 yr 11 mos

    Manage the IT needs of a small technology startup.