• Design On-Device Storage & Ingest Layer : Define and evolve storage (columnar layouts, compression schemes, downsampling pyramids, time-bucket indexes) and ingest layer (streaming, iterator-based parsing of large volumes in Dart with zero full-file slurps FFI to native code where it pays off) • Implement Calculation Kernels : Build processing for event detection (sags, swells, transients), analytical calculations, and standards-compliant aggregations (e.g., IEC 61000-4-x) choosing the right numerics for stability under long aggregation intervals • Plan Schema Evolution & Cloud Sync : Forward- and backward-compatible migrations so customer files from year one still open in year five partial sync, vector clocks, conflict surfaces in close collaboration with Lead Architect • Operate What You Ship : Share on-call rotation for data-plane incidents, lead postmortems on ingest or query regressions, and turn each into permanent test or performance benchmark • Validate Against Reference Vectors : Establish golden test vectors with PQ analyst, prototype in Python/NumPy, and prove production Dart/Rust kernels agree to required precision

Title: Application Engineer (Fraud and Scams) Location: Sydney Australia Job Identification: 68373 Job Category: Technology Engineering Job Schedule: Full time Brand: Westpac Group Job Description: Create your best future and join Westpac as an Application Engineer (Fraud and Scams). What's the role? You'll join Westpac's Group Fraud Management Platform Change team, supporting technology that helps detect and prevent fraud and scams. This is a hands on application engineering role where the work you do directly helps protect customers and strengthen trust. This is a Sydney based role on Warrane, Gadigal Country, offered as a full time, permanent position with a hybrid way of working. You'll design, build, enhance and support applications and integrations across the fraud and scam detection ecosystem. The team supports Proactive Risk Manager, also known as PRM, an ACI provided platform used for proactive risk and fraud management. Experience with PRM, fraud, scams or banking is advantageous but not essential. If you bring strong core engineering capability, you'll be supported to learn the platform. You'll work in Linux based environments, support Java applications, collaborate across teams, contribute to Agile delivery and help keep critical systems reliable and evolving. What do I need? - Strong hands on application engineering experience in complex environments - Solid capability with Linux or Unix shell scripting and Oracle databases, including SQL and PL SQL - Experience with integration technologies including XML, XSLT, APIs and messaging platforms such as Kafka or MQ - Hands on exposure to Java Spring Boot, developing or supporting REST or SOAP APIs, and tools such as Tomcat and Control M - Familiarity with DevOps and CI CD tooling such as GitHub, GitHub Actions, Bitbucket, Jenkins or Chef Desirable skills - Understanding of fraud detection systems or financial services technology - Experience using AI assisted coding tools to deliver efficient and consistent code - Experience working in Agile environments using tools such as JIRA and Confluence - Exposure to test driven development, testing frameworks and automation Why join us? We're obsessed with becoming our customers #1 banking partner for life and we're looking for people who are passionate about helping us achieve that goal. In return we're committed to making Westpac the best place to work in the country. Here are just a few of the ways we're already doing that: - Special offers on banking products and discounts from top brands, including generous employee only mortgage rates - Flexible work arrangements to help you achieve a greater work life balance, and a variety of leave options including Culture, Lifestyle and Wellbeing leave - Tailored learning and development opportunities to help your grow your career within the bank - Lots of opportunities to give back to the Community by getting involved in our many volunteering initiatives Create your future today We're all about creating a supportive and inclusive community. We welcome everyone no matter your age, gender, background, or abilities. We also provide additional support to welcome our veterans, Indigenous Australians and neurodiverse community. If you need any adjustments during the recruitment process, you can find more information and contact details on our FAQs and how to contact us page, under the 'Diversity, sustainability and flexibility' section. #UNITEprogram

• Manage large-scale automation projects ensuring timely delivery, technical accuracy, and customer satisfaction • Provide expert-level support for complex customer challenges • Lead creation of ROM, Budgetary, and Firm Fixed Price proposals • Collaborate with sales to identify and qualify opportunities • Present solutions to customers • Manage change orders and ensure timely resolution • Conduct post-delivery check-ins and track scope changes

• Provide pre-sales and post-sales technical support to customers, including product solutions, technical presentations, and troubleshooting. • Collaborate with sales teams to identify customer needs, develop technical solutions, and contribute to proposals and sales strategies. • Assist customers with product integration, configuration, and optimization, ensuring seamless implementation of Qnity™ solutions. • Conduct product training for customers and internal teams. • Analyze customer feedback and product performance data to identify areas for improvement and contribute to product development cycles. • Develop and maintain technical documentation, application notes, and white papers. • Stay up-to-date with industry trends, emerging technologies, and competitive offerings. • Participate in trade shows, conferences, and customer events as a technical expert. • Cross functional Collaboration with product management, Manufacturing/operations and quality teams. Support customer audits, technical reviews, and escalations