Senior Software Engineer – Payments

OrderYOYO

Senior Software Engineer managing payments processing systems at OrderYOYO. Joining a global team to enhance payment reliability, security, and performance.

Posted 7/18/2026full-timeRemote • 🇩🇰 DenmarkSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in backend engineering for payment systems, focusing on distributed systems, security compliance, and robust payment flows. Capable of collaborating with cross-functional teams to ensure reliable and secure payment processing.

Highest-signal resume keywords

Backend EngineeringPayment FlowsSecurity ComplianceAzure EnvironmentDispute Tooling

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

MicroservicesAsync ProcessingResilient APIsIdempotency KeysDouble-Entry ThinkingAutomated TestingCI/CD PracticesPayment IntentReconciliationKYC Integration

Soft Skills

Clear CommunicationCollaboration

Tools & Technologies

Azure APIsEvent QueuesMonitoring ToolsPSP IntegrationFraud Platforms

Certifications & Qualifications

PCI Compliance

Industry Keywords

Marketplace CapabilitiesSub-Merchant ModelsChargeback HandlingFinancial ComplianceMerchant Invoicing

Tech Stack

Tools & technologies

AzureDistributed SystemsMicroservices

About the role

Key responsibilities & impact

Own and evolve OrderYOYO's payments capabilities — enabling KYC onboarding, deductions, settlement/payout timing, dispute flows, and merchant invoicing — while raising the bar on reliability, security, and engineering quality.
Design, build, and operate payment-domain services, including gateway integrations and payment intent/authorisation/capture/refund flows, payout orchestration, and reconciliation.
Implement marketplace capabilities where relevant: onboarding/KYC integration, merchant configuration, settlement instructions, deductions, and invoicing/merchant-statement alignment.
Build robust “flow-of-funds” primitives — idempotency, ledgers/events, and audit trails — that are fully supportable for finance and compliance.
Integrate with PSP and partner tooling, with close attention to tri-party / sub-merchant implications.
Implement dispute/chargeback and fraud-handling touchpoints across internal workflows and PSP tooling, and collaborate with Ops on runbooks and escalation paths.
Partner closely with Product, Legal/Compliance, Finance, and Support to convert requirements into safe, testable production behaviour.
Raise engineering quality through automated testing, safe rollouts/canaries, observability, and incident-response improvements.

Requirements

What you’ll need

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

Benefits

Comp & perks

Competitive salary
A remote role — work from wherever you do your best work, with quarterly in-person gatherings at one of our global offices.
High ownership and autonomy.
Clear progression toward Tech Lead / Staff Engineer responsibilities.
The opportunity to work on revenue-critical production systems.
A strong focus on security, reliability, and engineering best practices.
A collaborative, international engineering team.
Real emphasis on learning, mentoring, and long-term growth.