Senior AI Engineer

Wesfarmers OneDigital is building Australia's leading data and digital retail ecosystem, underpinned by AI across everything we do. We operate across four pillars - loyalty, data, retail media and AI, turning millions of customer interactions into insights that shape how Australians shop, live and connect. We're expanding one of our most innovative teams and are looking for exceptional talent to join the AI Build Squad to help our divisions make the most of emerging technologies. This is your chance to build cutting-edge AI solutions that reach millions of customers across Australia's leading retailers. You'll work at the forefront of emerging technologies, solve complex business challenges, and help accelerate our AI transformation journey. The Senior AI Engineer is the hands-on technical lead for assigned AI and GenAI initiatives. They shape the solution design, turn ambiguous requirements into deliverable work, write production code and own the path through deployment and early-life support. They can lead a small delivery stream without needing each implementation decision prescribed. The role works within the Accelerator's agreed architecture and engineering patterns, applying sound judgement to local decisions and involving the Principal AI Engineer when a choice creates material enterprise risk or a new cross-team pattern. The Senior AI Engineer builds the tests, evaluations, tracing, monitoring and integrations needed for reliable production operation. The Senior AI Engineer lifts the team through thoughtful reviews, pairing and practical mentoring. They collaborate with AI Data Engineers and enterprise specialists, document useful delivery patterns, and contribute reusable components without carrying portfolio-wide standards or governance accountability. What you’ll do Lead solution design and technical delivery for assigned AI and GenAI initiativesWrite clean, maintainable and well-tested production code on the critical delivery pathTurn ambiguous requirements into a practical design and sequenced engineering workOwn a solution from technical discovery through deployment and early-life supportMake local design decisions within agreed architecture and escalate material trade-offsBuild automated tests and evaluations for AI behaviour and conventional software behaviourAdd tracing, monitoring and logging that make production behaviour understandableIntegrate AI applications with enterprise APIs, data sources and business systemsDiagnose complex issues across code, prompts, models, retrieval, integrations and infrastructureLead code and technical design reviews for the initiatives they supportGuide AI Engineers through pairing, feedback and practical technical mentoringWork with AI Data Engineers to make appropriate enterprise data available to solutionsWork with cyber, architecture, platform, data and governance teams on requirementsApply established engineering patterns and propose improvements based on delivery evidenceDocument useful patterns and contribute reusable components to the engineering communityUse AI coding tools and automation extensively in day-to-day engineering work What you’ll need Strong software engineering experience building and supporting production applications7+ years of relevant software engineering experienceHands-on experience designing and delivering LLM or GenAI applicationsExperience leading the technical delivery of a production AI, ML or GenAI solutionExperience integrating applications with APIs, databases and enterprise systemsExperience with cloud platforms, cloud-native services and production operationsExperience working effectively in a large enterprise technology environmentA relevant tertiary qualification is desirable but not essentialAdvanced capability in at least one modern programming language, with modern application development frameworksStrong knowledge of GenAI patterns including RAG, agents, tool use and structured outputsStrong software engineering fundamentals across source control, testing, CI/CD and observabilityExperience with cloud AI services, agent frameworks, embeddings, vector search and RAGExperience with containers, cloud deployment and infrastructure-as-codePractical understanding of evaluation, monitoring, cost and production support for AI systemsAbility to investigate unfamiliar technical problems and turn findings into maintainable softwareClear communication and the ability to guide engineers and work across technical disciplines About Wesfarmers As one of Australia’s largest listed companies, we’re proud of our longstanding contribution to Australians. We continually reinvent ourselves and invest in the businesses we own and operate, including leading retailers like Bunnings, Kmart, Target, Officeworks and Priceline. We also have an online offering, including OnePass and the Group shared data asset. Our work doesn’t stop there, we operate in the industrials sector which supplies the nation with chemicals, energy and fertilisers, and industrial and safety products. And we participate in an integrated lithium joint venture, including the operation of a mine and concentrator and the development of a refinery. Join the team at Corporate Office which provides support and advice across the Wesfarmers Group The Corporate Office provides corporate services and support to the autonomous businesses within the Wesfarmers Group, enabling the achievement of Group objectives. It leads capital allocation and portfolio management for the Group and focuses on leveraging and enhancing the Group’s reputation to support attraction and retention of talent, securing investment opportunities and maintaining a low-cost capital. To do this, we need great people, working together and role modelling our values and ways of working. Our culture We’re results focused, but we’re a business that cares. Here we are less about titles and more about everyone playing a valuable role. We provide autonomy and space with freedom to operate, quickly learning from mistakes because we know they are part of the way forward. We’re curious, open minded, and collaborative. And although we’re thought leaders, we’re humble, and willing to share knowledge and learn from one another. We know that diversity fosters greater innovation and better customer connection, so we strive to create an inclusive and diverse work environment. Next steps If this sounds like your next career move, click on the ‘Apply’ button. Please note that we may commence interviewing of candidates prior to this closing date. We’re hiring the best and the brightest talent. Let’s start to explore the possibilities of achieving great things together. For more information, visit our website at https://www.wesfarmers.com.au