Enterprise Architect (Data Domain) Contract - NSW, ACT, QLD, VIC, SA

HCM Australia; Sydney; Hybrid; AUD 180,000 - 210,000; Full time

Job summary

HCM Australia seeks an experienced Enterprise Architect with a data-domain background to lead strategic architectural direction across a major federal government agency's complex data environment.

This EL2-equivalent role moves the organisation from a large monolithic setup to best-of-breed platforms, defining authoritative sources of truth, reference data, and information flows while guiding executives, program leaders and delivery teams through architecture decisions.

Qualifications

• At least eight years of experience designing and delivering complex enterprise data initiatives and solutions
• At least three years in a Principal Architect, Enterprise Architect, Domain Architect or comparable senior role
• Broad Enterprise Architecture capability across multiple systems, programs and investments
• Strong data-domain expertise, including sources of truth, reference data, MDM, RDM, information flows, data modelling and data security
• Experience developing target states, transition roadmaps, architecture principles, patterns, standards and guardrails
• A record of working across large, complex transformation programs
• Strong internal consulting skills, including the ability to diagnose ambiguity and shape direction early
• Evidence of influencing executives, peers and delivery teams without direct authority
• The ability to explain complex technical matters clearly to business and executive audiences
• Experience balancing strategic direction with practical delivery needs across concurrent workstreams
• A collaborative working style and comfort operating in a changing environment where structures and processes are still developing

Responsibilities

• Shape enterprise architecture across multiple systems, programs and technology investments
• Develop and communicate target-state architecture and practical transition roadmaps
• Guide the transition from a monolithic environment towards best-of-breed platforms
• Help determine authoritative sources of truth and how information should move across systems
• Resolve reference-data, interoperability and cross-system architecture issues
• Identify dependencies, risks, sequencing considerations and opportunities for reuse
• Engage early with project teams to shape direction before decisions reach formal governance
• Translate complex architecture issues into clear business advice for senior leaders and executives
• Influence program direction and architecture decisions without relying on formal authority
• Work strategically across several concurrent transformation initiatives while remaining connected to delivery teams
• Collaborate with enterprise, solution, security and data architects, engineers, business stakeholders and vendors
• Provide architecture assurance, guidance and mentoring across the organisation

Skills

Data-domain expertise

Sources of truth

Reference data

MDM & RDM

Information flows

Data modelling

Data security

Architecture principles

Stakeholder influence

Executive communication

Education

Tertiary qualifications

Tools

TOGAF

AWS

Azure

Job description

• 14 Sep 2026
• Sydney
• Contract
• Lead enterprise data strategy and architecture at EL2 equivalent level
• Initial 12-month contract with a further 12-month extension option
• Australian Citizens only

We are seeking an experienced Enterprise Architect with Data Domain background to provide strategic architectural leadership across a major federal government agency's complex data environment.

This is a senior, EL2-equivalent opportunity within a Federal Government Enterprise Architecture practice. The organisation is moving from a large monolithic environment towards best-of-breed platforms, creating important architecture decisions about authoritative sources of truth, reference data, information flows, interoperability and cross-system dependencies.

This is not primarily a Data Modeller, Data Engineer, governance specialist or single-platform Solution Architect position. We are looking for a broad Enterprise Architect who can bring genuine data-domain depth while working consultatively across executives, program leaders, architects and delivery teams.

The opportunity

• Initial 12-month contract
• One 12-month extension option
• Expected start date: 19 October 2026
• Locations: Canberra, Sydney, Melbourne, Brisbane or Adelaide
• Hybrid working, with a minimum of three days per week in the office
• 37.5 hours per week
• Lead, EL2-equivalent engagement

What you will do

• Shape enterprise architecture across multiple systems, programs and technology investments
• Develop and communicate target-state architecture and practical transition roadmaps
• Guide the transition from a monolithic environment towards best-of-breed platforms
• Help determine authoritative sources of truth and how information should move across systems
• Resolve reference-data, interoperability and cross-system architecture issues
• Identify dependencies, risks, sequencing considerations and opportunities for reuse
• Engage early with project teams to shape direction before decisions reach formal governance
• Translate complex architecture issues into clear business advice for senior leaders and executives
• Influence program direction and architecture decisions without relying on formal authority
• Work strategically across several concurrent transformation initiatives while remaining connected to delivery teams
• Collaborate with enterprise, solution, security and data architects, engineers, business stakeholders and vendors
• Provide architecture assurance, guidance and mentoring across the organisation

What you will bring

You will need to demonstrate:

• At least eight years of experience designing and delivering complex enterprise data initiatives and solutions
• At least three years in a Principal Architect, Enterprise Architect, Domain Architect or comparable senior role
• Broad Enterprise Architecture capability across multiple systems, programs and investments
• Strong data-domain expertise, including sources of truth, reference data, MDM, RDM, information flows, data modelling and data security
• Experience developing target states, transition roadmaps, architecture principles, patterns, standards and guardrails
• A record of working across large, complex transformation programs
• Strong internal consulting skills, including the ability to diagnose ambiguity and shape direction early
• Evidence of influencing executives, peers and delivery teams without direct authority
• The ability to explain complex technical matters clearly to business and executive audiences
• Experience balancing strategic direction with practical delivery needs across concurrent workstreams
• A collaborative working style and comfort operating in a changing environment where structures and processes are still developing

Highly regarded experience includes:

• Existing Baseline or NV1 security clearance
• Experience in government, financial services, health or another large, regulated environment
• Formal Enterprise Architecture certification, such as TOGAF
• Advanced AWS or Azure architecture certification
• Major cloud or enterprise transformation experience
• Relevant tertiary qualifications in technology, information systems, architecture or a related discipline
• Government experience is helpful but not mandatory. Relevant experience from complex commercial environments will be considered where you can demonstrate strong Enterprise Architecture, data-domain and stakeholder-influence capability.