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2026-11-06

← MAH management

Full background report

Deon Baddock

Managing Director Civil Infrastructure West

Career chronology

  • Joined Decmil in November 2022 after NRW roles and joined Macmahon through its 2024 acquisition; managing director civil infrastructure west from September 2025.: Macmahon Holdings Limited — Managing Director Civil Infrastructure West. Annual Report FY2026 (physical PDF p. 44, executive biography)

  • Before Macmahon acquisition in August 2024: Decmil Group Limited — Executive General Manager Western. Decmil Annual Report 2023 (pp. 24–25 management biographies); Acquisition of Decmil completed (p. 1 acquisition completion)

Education and qualifications

Qualifications and verification

Education dates not established · issuer reported · low materiality

The issuer reports civil/structural chartered professional status and postgraduate qualifications; independent register and award records were not reconciled.

Attribution: Responsibility not applicable. Issuer or professional biography reports qualifications; no direct independent verification is implied.

Relevance: Relevant to assessing professional preparation.

Annual Report FY2026 (physical PDF p. 44, executive biography)

Business failures and setbacks

Decmil prior financial setbacks

FY2022–August 2024 · documented · medium materiality

The Decmil scheme booklet’s independent expert reports company net losses of A$1.8m in FY2023 and A$1.8m in the half year to December 2023, following a A$103.2m loss in FY2022. Macmahon completed its acquisition of Decmil in August 2024. The FY2022 loss preceded Baddock and Barnes joining Decmil; Vaughan joined in 2019. These are company-level outcomes.

Attribution: Role overlaps event; causation unproven. Executive roles overlapped some reported periods; the sources do not establish an individual causal contribution.

Relevance: Relevant to management of civil contracting and integration.

Decmil scheme booklet independent expert (independent expert section 5.6.1 financial history); Decmil Annual Report 2023 (printed pp.24–25 management biographies); Acquisition of Decmil completed (p.1 completed acquisition)

Suitability for the current role

Role-relevant professional experience

Through 2026-10-31 · analyst inference · low materiality

As an analytical inference, the reported experience is relevant to managing director civil infrastructure west: Joined Decmil in November 2022 after NRW roles and joined Macmahon through its 2024 acquisition; managing director civil infrastructure west from September 2025. The degree of individual contribution to past company outcomes is not established.

Attribution: Responsibility not applicable. Analytical assessment based on disclosed career; it is not a finding of personal delivery or misconduct.

Relevance: Matches documented experience to the role.

Annual Report FY2026 (physical PDF p. 44, executive biography)

Evidence gaps

  • Independent verification of education, credential status, full prior-employer tenures and individual outcomes is incomplete.

  • Focused public-source screening is not a comprehensive court, regulatory, criminal, sanctions or credential check; some historical employer records and local-language sources were not reviewed.