Senior Software Engineer – Payments

Stack

Responsibilities

• ▹Design, build and operate payment-domain services, including gateway integrations and payment intent/authorisation/capture/refund flows
• ▹Build payout orchestration and reconciliation systems
• ▹Implement marketplace capabilities: onboarding/KYC integration, merchant configuration, settlement instructions, deductions and invoicing
• ▹Build flow-of-funds primitives such as idempotency, ledgers/events and audit trails
• ▹Integrate with PSP and partner tooling, considering tri-party / sub-merchant implications
• ▹Implement dispute/chargeback and fraud-handling touchpoints, collaborate with Ops on runbooks and escalation paths
• ▹Partner with Product, Legal/Compliance, Finance and Support to turn requirements into safe, testable production behaviour
• ▹Raise engineering quality through automated testing, safe rollouts, observability and incident-response improvements
• ▹Mentor engineers and lead design reviews

Requirements

• ▹Strong backend engineering background in distributed systems: microservices, async processing, resilient APIs, eventual consistency
• ▹Production experience with payment flows (auth/capture/refund, webhooks, reconciliation) and money-correctness patterns such as idempotency keys and double-entry thinking
• ▹Solid security mindset: PCI compliance, PII protection, secrets management, least privilege, secure coding practices
• ▹Comfort working in an Azure-first environment (APIs, queues/eventing, monitoring)
• ▹Strong CI/CD and automated testing practices
• ▹Clear, confident communication with non-technical stakeholders in high-stakes scenarios

Nice to have

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

Soft skills

What we offer

• ▹Remote work
• ▹Quarterly team gatherings in one of the global offices
• ▹Competitive salary

About the company

OrderYOYO puts company culture first, creating a positive, inclusive environment where people are trusted to do their best work, take ownership of what they build, and where personal development is central.