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Wiremu Costa

Former employee

Account Manager — Public Sector (FORMER)

Adelaide · Adelaide, SA · wiremu.costa@data3.com.au

Public Sector Account Manager with 29 years driving Federal Government and regulated industry deals

Energy & UtilitiesFederal GovernmentRetail

About

Wiremu Costa is a seasoned account manager with deep expertise across the Australian Federal Government sector. He has successfully led multi-million dollar technology programs for defence, immigration and revenue agencies, navigating complex procurement pathways including WoAG panels, BuyICT and IRAP-assessed solutions. In mid-2024 Wiremu left Data#3 to join a leading hyperscaler partner where he continues to focus on strategic government relationships.

Experience

  1. 2019-07 — 2024-06
    Account Manager — Public Sector
    Data#3

    Led the Federal Government sales portfolio in South Australia and nationally for selected agencies. Focused on cloud, cyber and digital transformation programs while navigating whole-of-government procurement.

    • Grew Federal Government pipeline by 340% within three years
    • Successfully renewed and expanded three major Whole of Australian Government (WoAG) arrangements
    • Achieved consistent 115% of annual quota
  2. 2015-03 — 2019-06
    Public Sector Account Executive
    Microsoft

    Managed key Federal Government and Defence accounts for Microsoft Australia, driving adoption of Azure, Office 365 and Security & Compliance solutions.

    • Closed largest Azure government deal in South Australia to date
    • Built trusted advisor relationships with CIOs and CISOs across multiple departments
  3. 2010-01 — 2015-02
    Government Sales Manager
    Telstra

    Responsible for telecommunications and managed network solutions sales into Federal and State Government departments.

    • Delivered $47M in new revenue over five years
    • Led transition of legacy voice services to modern cloud-based unified communications
  4. 2006-05 — 2009-12
    Senior Consultant - Government & Public Sector
    Deloitte

    Provided technology advisory and procurement support to Federal Government clients as part of the Consulting practice.

    • Supported major ERP and infrastructure modernisation programs
    • Developed business cases adopted by two departments resulting in $120M+ programs
  5. 2002-02 — 2006-04
    National Account Manager - Technology Solutions
    Woolworths Group

    Managed key vendor relationships and technology procurement for the retailer's national operations, with exposure to energy efficiency and supply-chain technology projects.

    • Negotiated enterprise agreements that reduced technology costs by 22%
    • Coordinated retail technology refresh programs across 900+ stores
  6. 1995-07 — 2002-01
    Key Account Executive
    AGL Energy

    Began career in sales at AGL, managing corporate and government customers for energy and emerging technology services.

    • Established AGL's first major government energy-efficiency technology contracts
    • Developed foundational sales skills across regulated industries

Projects

  1. Defence Cloud Migration Program
    2022-08 — 2024-05
    Department of Defence · Federal Government · as Account Lead

    Led $28M multi-year engagement that migrated 14 classified workloads to an IRAP-assessed Azure landing zone, achieving 40% reduction in infrastructure costs and improving security posture.

    Azure GovernmentMicrosoft 365Cyber Security SolutionsIRAP Assessed Environments
  2. ATO Digital Workplace Transformation
    2021-02 — 2023-06
    Australian Taxation Office · Federal Government · as Strategic Account Manager

    Secured and delivered $19.5M contract that modernised 22,000 user digital environment, resulting in 95% user adoption within six months and significant productivity uplift.

    Microsoft 365 E5Power PlatformAzure ADIntune
  3. Border Technology Refresh via WoAG Panel
    2020-11 — 2022-04
    Department of Home Affairs · Federal Government · as Account Director

    Won competitive $15.2M WoAG panel procurement that upgraded network security infrastructure, delivering 60% improvement in threat detection and response times.

    Cisco Secure FirewallPalo Alto NetworksAWS GovCloudIRAP Controls
  4. Census Data Platform Renewal
    2019-10 — 2021-03
    Australian Bureau of Statistics · Federal Government · as Sales Lead

    Secured and supported $7.4M renewal and upgrade that enabled secure handling of 2021 Census data for 26 million Australians with zero security incidents.

    Azure Data LakePower BIMicrosoft Purview
  5. Smart Grid IoT Platform
    2018-06 — 2019-12
    AGL Energy · Energy & Utilities · as Key Account Manager

    Orchestrated $9.8M technology program that deployed IoT sensors across South Australian distribution network, reducing outage response time by 65%.

    AWS IoTAzure IoT HubSCADA IntegrationCyber Security
  6. Retail Supply Chain Modernisation
    2003-09 — 2005-11
    Woolworths Limited · Retail · as Account Executive

    Delivered $12M procurement and implementation project that improved supply chain visibility by 85% and reduced inventory holding costs by $4.2M annually.

    SAP AribaMicrosoft Dynamics 365Azure Analytics

Beyond the day job

Skills and experience from outside the day job — community, volunteering, hobbies and more.

  1. Ngarrindjeri Community Mentor Program
    Community / club
    Tauondi Aboriginal Corporation

    Provides career and leadership mentoring to young Aboriginal and Torres Strait Islander people in South Australia.

    Cultural AwarenessLeadership DevelopmentMentoring
  2. Adelaide University Football Club
    Sport / coaching
    AFL South Australia

    Coaches under-16 and under-18 teams while assisting with club governance.

    CoachingProgram DevelopmentTeam Leadership

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