{"id":3802551,"url":"https://alion.io/job/westpac-senior-engineer-data-and-ai","title":"Senior Engineer Data and AI","company":{"id":1766325,"name":"Westpac","domain":"westpac.com.au","url":"https://alion.io/company/westpac-com-au","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"A","score":100,"open_postings":10,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":14,"computed_at":"2026-11-09T06:03:00Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Sydney, Australia"],"countries":["AU"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"GCP","optional":false},{"name":"JavaScript","optional":false},{"name":"Kotlin","optional":false},{"name":"Kubernetes","optional":false},{"name":"Machine Learning","optional":false},{"name":"Node JS","optional":false},{"name":"Python","optional":false},{"name":"Spring Boot","optional":false},{"name":"Terraform","optional":false},{"name":"TypeScript","optional":false},{"name":"CI/CD","optional":true},{"name":"Java","optional":true}],"status":"live","first_seen_at":"2026-11-05T05:54:43Z","employer_posted_date":"2026-11-05","last_verified_at":"2026-11-09T19:22:52Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Create your best future and join Westpac as a Senior Engineer\nWhat’s the role?\nReady to lead complex engineering outcomes while staying close to design, code and production?\nJoin Westpac as a Senior Engineer and help deliver safe, reliable and maintainable technology across Shared Data and AI, Digital, or Contact Centre teams.\nYou will provide hands-on technical leadership within a squad or bounded product area while demonstrating your expertise, judgement and coaching skills.Depending on the team, your work may include customer-facing web or mobile experiences, APIs and distributed services, data products and pipelines, AI-enabled capabilities, colleague tools, contact centre platforms, cloud services or shared engineering foundations.\nYou will shape ambiguous work, make and explain consequential technical decisions, implement high-value changes, and remain accountable for production outcomes. You will help the squad balance delivery speed with security, resilience, accessibility, operability and long-term sustainability.\nYou will also raise the capability of others through constructive design and code reviews, pairing, mentoring, clear documentation and incident learning. This is a technical contributor role. Formal people leadership may apply only where stated for a specific vacancy.\nThis is a hybrid role within Westpac Technology. Opportunities may be available across Shared Data and AI, Digital, and Contact Centre teams. Location and working arrangements will be confirmed for each vacancy.\nWhat do I need?\nEssential capabilities\nDeep hands-on engineering capability and sound code-quality judgement in at least one relevant engineering stack, with experience delivering and supporting production technology through its full lifecycle.\n\nConfidence working across service or interface design, data, distributed failure, automated testing, continuous integration and delivery, security and observability.\n\nSound judgement with timeouts, retries, backoff, idempotency, concurrency, consistency, compatibility, migration and failure recovery, or equivalent concerns in your engineering domain.\n\nExperience diagnosing imperfect systems, identifying the material issue and implementing proportionate improvements rather than defaulting to broad rewrites.\n\nThe ability to create risk-aligned evidence through unit, integration, component, contract, end-to-end, performance or resilience testing as appropriate.\n\nExperience operating technology in production, including logging, metrics, traces, alerts, dashboards, incident response, recovery and reducing recurring operational toil.\n\nA security, privacy and risk-aware approach, with attention to secure defaults, accessibility, customer outcomes and regulatory obligations.\n\nExperience coaching engineers through pairing, review and practical problem-solving, using specific and respectful feedback to increase their confidence and ownership.\n\nClear and inclusive communication. You can explain technical choices, invite challenge, adapt to different audiences and work effectively across disciplines.\n\nExperience that may be useful\nYou do not need experience in every area below. We encourage you to apply if your strengths are relevant or transferable and you are interested in developing domain-specific knowledge.\nDigital engineering, including web or mobile platforms, design systems, accessibility, customer identity, APIs or high-volume customer experiences.\n\nData and AI engineering, including data platforms, streaming or batch pipelines, analytics, machine learning, generative AI, responsible AI controls, model operations, evaluation or observability.\n\nContact centre technology, including colleague tools, interaction platforms, workflow automation, telephony, conversational experiences or customer-service integration.\n\nCloud-native engineering using AWS, Azure, GCP, Kubernetes, Terraform or equivalent technologies, including networking, identity, secrets and platform services.\n\nLanguages and frameworks such as Java, Kotlin, C#/.NET, TypeScript, JavaScript, Python, Go, Spring Boot, Node.js or equivalent technologies relevant to the role.\n\nUsing AI-assisted engineering tools responsibly, including critically reviewing generated designs and code, validating outputs and retaining human accountability.\n\nWorking in a regulated, high-availability or large enterprise environment.\n\nHow you’ll make an impact\nLead complex squad-level engineering outcomes through practical implementation, design judgement and influence.\n\nClarify ambiguous problems, identify material constraints and sequence work to deliver value safely.\n\nImprove service, interface or data contracts and make trade-offs explicit, proportionate and reversible where possible.\n\nDesign for distributed failure, production visibility, safe deployment, rollback and recovery.\n\nReview technical changes, including AI-generated work, and clearly explain what should be accepted, changed or rejected.\n\nRemove unnecessary complexity and help prevent recurring classes of defects or incidents.\n\nCreate clear decisions, patterns and evidence so the squad can continue independently rather than relying on a single expert.\n\nHelp the team use shared platforms and recommended tools instead of building reusable solutions\n\nWhy join us?\nWe’re obsessed with becoming our customers’ number one banking partner for life, and we’re looking for people who want to help us achieve that goal. In return, we’re committed to making Westpac a great place to work. Here are some of the ways we support our people:\nSpecial offers on banking products and discounts from leading brands, including eligible employee-only mortgage rates.\n\nFlexible work arrangements and a range of leave options, including Culture, Lifestyle and Wellbeing leave.\n\nLearning and development opportunities to deepen your craft and grow your career within the bank.\n\nOpportunities to support the community through Westpac volunteering initiatives.\n\nCreate your future today\nTo get started, select APPLY or APPLY NOW and tell us about the engineering outcomes you have delivered, the technical decisions you have shaped and how you have helped others succeed.\nWe know capable people do not always meet every listed requirement. If this role interests you and your experience is relevant or transferable, we encourage you to apply.\nWe’re committed to creating a supportive and inclusive workplace. We welcome applications from people of all ages, cultural backgrounds, genders, abilities and ways of thinking. We provide additional support for veterans, Aboriginal and Torres Strait Islander peoples, and neurodivergent people.\nIf you need an adjustment or an alternative format at any stage of the recruitment process, please visit our FAQs and how to contact us page and see the “Diversity, sustainability and flexibility” section. 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