Senior Backend Engineer (Fintech)

Location: Remote; hirify.global maintains a hybrid work policy with four office days per week and Wednesdays working from home. The role includes scheduled evening overlap with the Taipei engineering team.

Company

hirify.global is building business banking and financial products for healthcare practices.

What you will do

• Design and build core banking infrastructure for account opening, balances, statements, and backend APIs.
• Build and maintain money movement across US payment rails, including ACH, wires, RTP, and FedNow.
• Own ledger integrity and transaction processing, including double-entry accounting, holds, idempotency, and daily reconciliation.
• Integrate business banking with cards, BillPay, expense management, accounting systems, insurance payouts, and patient payments.
• Work with sponsor banks, payment processors, and financial partners on integrations, certifications, and compliance requirements.
• Make architecture decisions, establish engineering practices, mentor engineers, and collaborate with product, design, and distributed engineering teams.

Requirements

• 5+ years of backend engineering experience with strong Node.js/TypeScript skills or a comparable backend language, plus PostgreSQL proficiency.
• 3+ years of experience building production fintech products across payments, cards, spend management, lending, banking, or financial software.
• Hands-on ownership of architecture decisions involving money movement, ledgers, or transaction processing.
• Strong system design skills covering financial correctness, idempotency, event ordering, retries, audit trails, reconciliation, and safe backfills.
• Experience integrating third-party financial platforms such as payment processors, card issuers, sponsor banks, or accounting systems.
• Ability to build products from specification through production in an ambiguous environment, with clear technical documentation and proactive risk identification.
• Strong cross-functional communication skills and ability to collaborate with distributed engineering teams, including scheduled evening overlap with Taipei.

Nice to have

• Experience with accounts payable automation or BillPay, including vendor payments, payment scheduling, and payment tracking.
• Hands-on experience with US payment rails, ACH, NACHA formats, returns, same-day ACH, wires, RTP, or FedNow.
• Experience with expense management products, card spend, receipts, spend controls, or reimbursements.
• Experience building banking or deposit products with sponsor banks or banking-as-a-service platforms.
• Experience with card issuing, payment processor integrations, or accounting synchronization.
• Familiarity with healthcare payments, including insurance remittances, ERA/835, lockbox, or patient payment collections.
• Mandarin proficiency.
• Experience building a product from zero to one in an early-stage company or regulated industry.

Culture & Benefits

• Equity participation for employees.
• Competitive salary based on experience and contributions.
• Comprehensive health, vision, and dental insurance options.
• Employer 401(k) match.
• Hybrid work policy with four office days and one work-from-home day per week.