(Senior) Backend Engineer (FinTech / SaaS)

What you will do

• Design, build, and maintain scalable backend APIs and platform services
• Develop backend systems using Node.js, Express.js, and PostgreSQL
• Integrate with banking, payment, and financial APIs
• Collaborate with cross-functional product and engineering teams on new platform capabilities
• Contribute to system architecture and technical design decisions
• Ensure backend reliability, performance, and scalability
• Support the development of fintech and SaaS product features for international markets
• Work closely with overseas stakeholders and distributed engineering teams

What you will need

• Strong backend engineering experience with modern JavaScript ecosystems
• 3-5+ years of software engineering experience
• Deep experience with and understanding of:
• JavaScript
• Node.js
• Express.js framework
• APIs
• Databases (PostgreSQL)
• Architecture
• Fintech web applications
• Good understanding of API design and backend system integration
• Comfortable working in fast-paced startup or product-driven environments
• Strong ownership mindset and ability to work independently
• Excellent collaboration and communication skills
• Fluent English communication skills are essential
• Ability to work flexible hours to collaborate with US-based teams
• Candidates should already be based in Taipei