Senior Backend Engineer Lead (FinTech / SaaS) at Nahc

<p data-start="144" data-end="301">Our client is a fast-growing international technology company building modern fintech and SaaS platforms for the healthcare sector in the US market.</p> <p data-start="303" data-end="536">Backed by experienced founders, global investors, and a highly entrepreneurial leadership team, the company is focused on transforming operational and financial workflows through scalable software products and intelligent automation.</p> <p data-start="538" data-end="740">They are currently expanding their engineering team in Taiwan and are looking for a Senior Backend Engineer Lead to help drive the development of core platform and financial infrastructure capabilities.</p> <p data-start="755" data-end="947">This position is ideal for an experienced backend engineer who enjoys building scalable systems, working on fintech-related products, and contributing within a fast-moving startup environment.</p> <p data-start="949" data-end="1154">You will play a key role in designing and developing backend services, integrating financial and payment-related APIs, and helping shape technical architecture decisions as the platform continues to scale.</p> <p data-start="1156" data-end="1373">The role requires close collaboration with international stakeholders, including teams based in the United States, so strong English communication skills and flexibility to overlap with US working hours are important.</p> 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 • 5+ years of experience with: • JavaScript • Node.js • API development • 2+ years of experience with: • Express.js • PostgreSQL • System architecture / backend design • Experience building fintech, payment, marketplace, or SaaS platforms • Strong 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