Senior Software Engineer - Payments (APAC)

About the role

Shopify is hiring a Senior Software Engineer for its Payments team in Singapore (APAC). The team builds the financial systems that record, reconcile and trust money movement such as charges, payouts, refunds and fee splits, and the cross-border commerce technology that lets merchants sell into new countries without handling duties, taxes and currency conversion themselves. It is a small, senior team of Staff and Senior engineers where engineers shape what gets built.

Key responsibilities

• Design, build and operate highly reliable, scalable distributed systems that handle money movement at Shopify
• Build and maintain financial infrastructure that keeps money movement accurate, reconciled and trustworthy
• Work in Ruby on Rails within Shopify's core platform and in Go for new services
• Partner with payments, commerce, finance and data teams across Shopify, and with external partners across global time zones
• Own ambiguous, high-impact problems end to end, from shaping the approach to delivering production-ready systems
• Take part in an incident response on-call rotation and use AI tools to accelerate engineering workflows

Required profile

• Strong backend engineering experience, with depth in distributed systems, service design and production operations
• A track record of designing, building and operating reliable, scalable systems with strong guarantees around consistency, fault tolerance, idempotency, recovery or data integrity
• Comfort navigating ambiguity and owning work; excellent written communication and ability to collaborate asynchronously across time zones
• Strong system design and problem-solving skills, with judgment to trade off correctness, complexity, performance and delivery speed
• Willingness to occasionally join meetings or calls outside standard hours to overlap with global teams

Required skills

• Proficiency in a backend language such as Ruby and/or Go (strong engineering fundamentals are valued)
• Nice to have: experience with payments, fintech or financial systems; familiarity with ledgers, accounting primitives, cross-border commerce duties, taxes, FX or compliance; hands-on experience with Ruby on Rails and/or Go; exposure to production systems and on-call