Senior AI-Driven Fullstack Developer (ReactJS, C#)

Office location: Ho Chi Minh City (District 1) | Company HQ: Melbourne, AustraliaEmployment Type: Full-time Your RoleWe’re not looking for a conventional Senior Fullstack .NET Developer. We’re looking for a game-changer, an all-rounder who can harness AI to 10x productivity and reinvent how software is built. In this role, you won’t just code—you’ll analyze business needs, design solutions, test features, and deliver products end-to-end. You’ll become the driver of AI-powered software development in our business, leading the way in transforming how we create exceptional products for our customers.You will join as a Senior .NET Full-Stack Developer with the opportunity to grow into a Technical Lead role. Initially, your main responsibility is hands-on coding, building high-quality features, and testing the TOMSoft products. These include four core products—Tom Delivery, Tom Enterprise, and the Tom Platform—as well as new and exciting solutions we are building for the mortgage broking, legal, and facilities management industries. Over time, as you demonstrate leadership and technical ownership, you will be mentored and supported to step into a lead position where other developers will work around you. Your MissionDevelopment & Delivery (Primary)Use AI tools to accelerate development, testing, and solution design.Own the full lifecycle: business analysis, design, coding, testing, and release.Design, build, test and maintain features for:TOMSoft ERP suite (Delivery, Enterprise, Business, Platform) – our core systems for business operations and customer workflows.New industry-focused products in mortgage broking, legal, facilities management, and more!Write clean, maintainable, and testable code in .NET (C#) and ReactJS (TypeScript).Participate in code reviews and contribute to improving coding standards and practices.Technical Growth to LeadershipInnovate continuously, finding smarter ways to deliver outcomes.Lead by example and grow into the technical leader driving our AI-first approach.Gradually take ownership of technical design decisions and system architecture.Learn to guide and mentor junior developers. Support & CollaborationWork closely with the Australian product and customer success teams to understand requirements and priorities.Help troubleshoot and resolve complex issues in collaboration with QA and BA/PO.Support production issue investigations when escalated.