Integration Consultant

We are seeking a Lead Integration Architect to join a major digital program within the Australian energy and utilities sector. This is a senior role for an experienced practitioner who operates with a high degree of autonomy, takes ownership of complex integration outcomes and is trusted to make and defend sound technical decisions. Reporting to the Program Manager, you will shape how the program's systems connect, translating business and solution requirements into scalable, secure and supportable integration architecture and detailed, build-ready designs that align with enterprise architecture principles and technology standards.

The role brings together integration architecture, technical leadership and hands-on design. You will own the end-to-end integration architecture, set the patterns and standards the program builds on, and act as the technical authority when reviewing and challenging System Integrator and vendor designs. You will lead the integration workstream, coordinating technical activities across teams and vendors from initiation through to production. You will also own the detailed design of the interfaces in scope, producing precise specifications that developers and testers can build from with confidence.

You will be a credible advisor to business stakeholders, business analysts, delivery teams, vendors and the System Integrator, bringing clarity to complex problems and guiding solutions from design through build, testing, deployment and hypercare.

This role may require onsite work at client premises, depending on project needs.

Key Responsibilities

• Work with the System Integrator to design the end-to-end integration architecture and approach for the program, providing integration guidance and technical leadership across the project.
• Lead the integration workstream from initiation through to production deployment and hypercare, coordinating the technical activities of vendors, contractors and internal teams, and reporting technical delivery progress to the Program Manager and stakeholders.
• Establish technical delivery principles, plan technical dependencies into project activities and resolve technical design issues, bringing in subject matter experts when required.
• Define integration patterns and standards for APIs, interfaces and middleware that enable reusable integrations across multiple client organisations and systems, while accommodating contract-specific requirements without unnecessary changes to core applications.
• Engage business analysts and business and technical stakeholders to translate business, functional and non-functional requirements into practical integration designs, and confirm detailed integration requirements, including data elements, triggers, frequency, volumes and business rules.
• Translate the approved integration architecture, patterns and standards into detailed integration designs and interface specifications for each integration in scope.
• Define source-to-target data mappings, transformation and validation rules, message and payload structures, and API contracts.
• Produce sequence diagrams, data flow diagrams and integration catalogue entries that clearly describe system interactions and dependencies.
• Advise on integration options, impacts, dependencies and trade-offs across connected systems, including opportunities to reuse existing integrations and components.
• Define and assure integration non-functional requirements, including security, resilience, availability, recoverability, monitoring, throughput and performance, and design error handling, retry, exception management, logging, ing and reconciliation approaches that meet them.
• Apply the agreed security patterns, including authentication, authorisation and data protection, within each interface design.
• Ensure integration designs support data quality, data integrity, data ownership and sound information management practices.
• Prepare integration estimates, including detailed effort for design, build and test activities, and provide technical input into delivery planning.
• Lead integration architecture reviews, coordinate technical approvals, and review, challenge and approve vendor and System Integrator designs and implementation approaches against enterprise architecture standards, target-state architecture and non-functional requirements.
• Manage design deviations and technical trade-offs, ensuring architecture decisions and design changes are documented, and maintain traceability between requirements, designs and test cases under change control.
• Develop and secure technical acceptance of key design decisions and the work activities needed to deliver business outcomes.
• Act as the primary design point of contact for System Integrator developers, clarifying specifications, reviewing builds against approved designs and providing technical oversight of testing and defect resolution.
• Drive configuration management, deployment and automated testing practices for integration solutions.
• Support test planning by defining integration test scenarios and test data, and help resolve defects through system integration, user acceptance and performance testing.
• Coordinate testing and operational readiness, including automated unit and integration testing, system integration testing, security testing, performance testing, disaster recovery validation and operational acceptance.
• Assess technical readiness for production and support hypercare and operational handover, including defining operational support models, preparing interface support documentation and runbooks, and transitioning support requirements and ongoing ownership to the appropriate support teams.
• Act as the bridge between business outcomes and technical implementation, partnering closely with the client's architecture, platform, infrastructure, cyber security and integration teams, as well as project managers and technology vendors.
• Ensure integration solutions comply with architecture, security, data, technology and regulatory requirements, including Australian energy market and regulatory obligations, and consider customer and end-user outcomes such as reliability, performance and service continuity.

  Required Skills and Experience

  • Minimum of 8 years' experience across integration architecture, integration design and technical delivery leadership within complex enterprise environments.
  • Degree in Software Engineering, Computer Science or a related discipline.
  • Proven experience designing end-to-end integrations across multiple systems and platforms, including ERP, cloud, SaaS and legacy systems, as well as GIS and mobility platforms.
  • Proven experience producing detailed, build-ready integration designs and interface specifications, including data mappings, transformation rules, payload definitions, sequence diagrams and error handling.
  • Strong hands-on experience with REST and SOAP APIs, middleware, ESB and iPaaS platforms, messaging and event-driven integration, batch and file-based integration and enterprise integration patterns, and a solid working knowledge of JSON, XML and related schemas.
  • Experience designing and integrating field service, work and asset management solutions. IFS experience is highly desirable.
  • Experience defining and applying integration security, resilience, performance and data requirements, including logging, monitoring, retry and exception handling within detailed interface designs.
  • Strong experience in architecture governance, design reviews and technical decision-making, including working with System Integrators and vendors to review and challenge their designs.
  • Proven experience as a technical lead, coordinating end-to-end technical delivery of complex system implementations across multiple teams, from initiation through to production deployment and hypercare.
  • Experience working with System Integrator developers and testers to clarify designs, review builds against specifications and resolve integration defects, supporting integrations through build, testing, deployment and hypercare.
  • Strong working knowledge of software delivery, build, test and integration practices, including DevOps, configuration management, deployment and automated testing.
  • Experience working within complex technology and business transformation programs, alongside external vendors, contractors and internal teams.
  • Exposure to AWS (ECS, EKS, S3), containers, GitLab and Infrastructure as Code is highly desirable.
  • Minimum of 3 years' experience in the Australian energy or utilities industry, ideally within an electricity or gas distribution network business, with working knowledge of National Electricity Market (NEM) and gas market operations, AEMO B2B and market procedures, and associated regulatory obligations.
  • A senior architect with a proven track record across architecture, detailed design and technical delivery, from solution design and agreement with architecture teams through to successful transition into operations.
  • Comprehensive knowledge of architecture frameworks, enterprise integration patterns, API design standards, enterprise technology standards, architecture governance and integration design documentation practices.
  • In-depth understanding of Australian energy distribution business processes, market interactions and supporting platforms, particularly field service, work and asset management, mobility, ERP and GIS integration.
  • Expertise in integration security, data flows, risk management and data governance for enterprise-level systems.
  • Strong data analysis skills, with confidence working with data models, schemas, sample payloads and SQL.
  • Strong understanding of software delivery and system engineering concepts across modern and legacy digital platforms, including automated testing tools and database and data storage practices.
  • Familiarity with project management methodologies, Agile and DevOps methods and how they apply across integration design and delivery, including user stories, backlog refinement and automated deployment of integrations.
  • Excellent communication skills, with the ability to produce precise documentation that developers and testers can build from, explain complex technical concepts to non-technical stakeholders and influence decisions across business, project, technical and vendor teams.
  • A proactive and inquisitive problem solver with strong analytical capability, high attention to detail and a structured approach, and confidence in making and defending sound technical decisions.
  • Highly collaborative and outcome-focused, working effectively with architects, business analysts, System Integrator and vendor teams, with strong business acumen.
  • Organised and self-directed, able to work autonomously through complexity and ambiguity and manage multiple interfaces and competing priorities.
  • Strong planning skills, with the ability to coordinate design and build activities across distributed teams to deliver outcomes within agreed timeframes.
  • Adaptable to change, able to learn new technologies and concepts quickly, and committed to continuous improvement and ongoing research and learning.

  Benefits & Perks

• Flexible/hybrid working arrangements.
• Health insurance.
• Novated Car Lease.
• Access to UST Perks (Reward Gateway), which offers discounts across major retailers.

  Our commitment to Diversity, Equity and Inclusion

  Diversity and Inclusion are among the founding blocks of how UST as an organisation translates its values of Humility, Humanity, and Integrity into practice.

  About UST

  For more than 25 years, UST has worked side by side with the world's best companies to make a real impact through digital transformation. Together, with over 30,000 employees in 30+ countries, we build for boundless impact-touching billions of lives in the process.