About SoBanHang & Our Mission SoBanHang is Vietnam's #1 mobile-first POS & business management app, trusted by over 600,000 merchants. We are now launching Finan, our new finance management and neobank platform. At Finan, our mission is to provide SMEs with modern tools for cash flow, banking, and growth, directly impacting millions of entrepreneurs across Vietnam and the world.The Opportunity: As a Senior Backend Golang Engineer at Finan, you will be at the core of a high-volume fintech system. You will architect, build, and scale secure, resilient microservices that process millions of daily events, including financial transactions, invoices, and banking operations. This is a unique chance to work at fintech scale, bring AI-driven intelligence into real-world financial workflows, and fast-track your career from developer to senior leader.What You'll DoArchitect and implement robust and scalable backend systems and microservices using Go.Improve the core technical platform to enhance stability, efficiency, and scalability for millions of users.Design and deliver new features that directly support our neobank and financial management products.Ensure code quality by writing secure, maintainable, and reusable code, following best practices.Collaborate closely with product, data, and engineering teams in an Agile environment to deliver value fast.Continuously experiment, learn, and grow in a dynamic and fast-paced environment.