Senior Software Engineer – Payments

Location: Fully remote, but must be Copenhagen-based; quarterly team gatherings at a global office.

Salary: DKK 66,000 per month.

Company

hirify.global provides branded websites, mobile apps, and marketing solutions for restaurants, and operates a large restaurant-focused platform in Europe through its partnership with AppSmart.

What you will do

• Design, build, and operate payment-domain services covering gateway integrations, payment authorisation, capture, refunds, payouts, and reconciliation.
• Implement marketplace capabilities including KYC onboarding, merchant configuration, settlement instructions, deductions, and invoicing alignment.
• Build supportable flow-of-funds primitives such as idempotency, ledgers, events, and audit trails.
• Integrate PSP and partner tooling, including sub-merchant flows, and implement dispute, chargeback, and fraud-handling workflows.
• Partner with Product, Legal/Compliance, Finance, Support, and Operations to deliver safe production behaviour and escalation runbooks.
• Improve engineering quality through automated testing, safe rollouts, observability, incident response, mentoring, design reviews, and shared documentation.

Requirements

• Strong backend engineering experience with distributed systems, microservices, asynchronous processing, resilient APIs, and eventual consistency.
• Production experience with payment flows including authorisation, capture, refunds, webhooks, and reconciliation.
• Knowledge of money-correctness patterns including idempotency keys, double-entry thinking, and auditability.
• Security mindset covering PCI compliance, PII protection, secrets management, least privilege, and secure coding.
• Comfort working in an Azure-first environment with APIs, queues, eventing, and monitoring.
• Strong CI/CD and automated testing practices.
• Clear, confident communication with non-technical stakeholders during incidents, financial breaks, and compliance requests.

Nice to have

• Experience with sub-merchant, marketplace, or Payfac-like operating models, including KYC, underwriting, settlements, and fee deductions.
• Familiarity with dispute tooling, card scheme rules, 3DS and risk rules, or fraud platforms.

Culture & Benefits

• High ownership and autonomy over revenue-critical production services.
• Inclusive, collaborative, and international engineering environment.
• Strong focus on security, reliability, engineering best practices, learning, mentoring, and personal development.
• Fully remote work for Copenhagen-based employees, with quarterly team gatherings at a global office.