Senior Software Engineer | Full Stack .NET & React | Sydney (On-site)

**Build the first experience customers have with a financial platform.** We’re recruiting a Senior Software Engineer for a financial services client’s customer acquisition team. You’ll work on the journey from someone’s first visit to becoming an active customer: the public website, onboarding, identity verification, sign\-in and promotions. This is a hands\-on role with real ownership. You’ll build across the stack, help shape technical decisions and see how your work affects customer experience and growth. What you’ll do * Build customer\-facing features in React and TypeScript, alongside APIs and services in .NET. * Improve onboarding, SSO and the systems that determine what information each customer needs to provide. * Own features from design discussions through release and ongoing improvement. * Work closely with design, product, compliance and other engineers. * Keep performance, reliability, accessibility and maintainability front of mind. What you’ll bring * Strong full\-stack engineering experience, with solid .NET skills and confidence building frontend products in React and TypeScript. * Experience with relational databases, data\-driven rules and headless CMS platforms. * An eye for edge cases and a habit of writing clear, testable code. * Curiosity about how technical decisions affect conversion and the customer experience. * The confidence to take ownership while priorities evolve. Experience with OAuth/OIDC or SAML, KYC integrations, multilingual websites, technical SEO or high\-conversion digital products would be a bonus. The details * Location: Sydney, NSW (on\-site) * Seniority: Mid\-Senior level * Employment type: Full\-time If you like building polished customer experiences and enjoy solving the engineering challenges behind them, I’d love to hear from you. Apply now or reach out for a confidential chat.