AWS Professional Services is looking for a senior hands-on technical leadership role. The consultant will own the Application Modernisation workstream for a large-scale legacy modernisation program, specifically owning the end-to-end decomposition of a mission-critical Oracle monolith into modern, business-modelled domain APIs. They will define service boundaries, sequence the teardown across business domains, and design production APIs that balance future-state architecture ambition with pragmatic delivery risk. They will work alongside an Agentic AI workstream lead and influence the broader program strategy.
This is not a pure migration or lift-and-shift role. It is a strategic technical leadership position requiring the ability to decompose complex legacy systems with decades of encoded business logic, design production-grade APIs at enterprise scale, and coach senior customer stakeholders through architecture decisions that balance modernisation ambition with operational risk.

Key job responsibilities

• Own the Application Modernisation workstream end-to-end: domain decomposition strategy, service boundary definition, API design, solution architecture, and delivery governance.
• Lead the decomposition of a ~30-year-old Oracle monolith into business-modelled domain APIs.
• Define and sequence the domain teardown across multiple business units, managing dependencies and minimising disruption to consuming applications.
• Design production, web-facing APIs with clear versioning strategies that avoid breaking existing consumers during progressive migration.
• Navigate the tension between future-facing domain contracts and pragmatic v1 designs that limit application rework and regression risk.
• Establish the end-to-end modernisation process: from legacy discovery and domain mapping through to API specification, solution design review, and cutover planning.
• Collaborate with the Agentic AI workstream lead to define how AI-assisted discovery integrates with human-led business architecture and domain design decisions.
• Advise senior customer stakeholders (including enterprise architects, business domain owners, and programme leadership) on architecture direction, sequencing trade-offs, and how much change to absorb per phase.
• Serve as the senior technical authority on legacy decomposition, working across modernisation architects, application developers, data engineers, and customer SMEs.
• Mentor and uplift team capability in legacy modernisation patterns, domain-driven design, and API-first delivery.
• Establish and maintain technical governance: solution design reviews, domain API design standards, and change impact assessment processes.

A day in the life
AWS Professional Services includes experts from across AWS who help our customers design, build, operate, and secure their cloud environments. Customers innovate with AWS Professional Services, upskill with AWS Training and Certification, optimize with AWS Support and Managed Services, and meet objectives with AWS Security Assurance Services. Our expertise and emerging technologies include AWS Partners, AWS Sovereign Cloud, AWS International Product, and the Generative AI Innovation Center. You’ll join a diverse team of technical experts in dozens of countries who help customers achieve more with the AWS cloud.

About the team
Diverse Experiences
AWS values diverse experiences. Even if you do not meet all of the preferred qualifications and skills listed in the job description, we encourage candidates to apply. If your career is just starting, hasn’t followed a traditional path, or includes alternative experiences, don’t let it stop you from applying.

Basic qualifications

• Bachelor's degree in Computer Science, Math, or a related field
• Experience managing and delivering large-scale enterprise IT projects
• Experience with IT compliance and risk management requirements (e.g. security, privacy, SOX, HIPAA etc.)
• Experience with software development life cycle (sdlc) and agile/iterative methodologies

Preferred qualifications

• Knowledge of compliance and security standards across the enterprise IT landscape
• Experience implementing AWS services in a variety of distributed computing environments
• Experience managing executive customer relationships and key business stakeholders
• Experience with enterprise architecture frameworks (like TOGAF, Zachman) and identifying the relationships between business services, information, applications and global infrastructure assets
• Experience with enterprise systems including SAP, Oracle, and custom applications

Acknowledgement of country:
In the spirit of reconciliation Amazon acknowledges the Traditional Custodians of country throughout Australia and their connections to land, sea and community. We pay our respect to their elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.

IDE statement:
Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

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