Senior Payments & Data Platform Engineer

Qu; United States; Hybrid; USD 130,000 - 170,000; Full time

Job summary

Qu is seeking a Senior Software Engineer to own both payments integrations and the data platform that makes transactions visible and reconciled for merchants. You will work on a leading enterprise restaurant technology platform (POS, kiosks, digital ordering) within a scaled agile team distributed across geographies.

You’ll build payment integrations with PSPs, design reconciliation pipelines and dashboards, mentor engineers, and help drive high-quality code in a cloud-based, hybrid environment.

Qualifications

• 7+ years in software development with payments or financial data exposure.
• 5+ years in C#/.NET building APIs and microservices.
• Hands-on PSP integration experience: gateway APIs, terminal APIs, management APIs, webhook notifications.
• EMV terminal integration: device pairing, transaction flows, certification, in-store troubleshooting.
• Experience building data reporting UIs that present financial data to non-technical users.

Responsibilities

• Build and maintain payment integrations with PSPs across card-present and card-not-present channels.
• Own terminal-to-cloud payment flows: device initialization, transaction processing, Store & Forward, and webhook-based reconciliation.
• Serve as a subject matter expert across the full payment stack from terminal hardware through gateway to settlement.
• Design and build the reconciliation platform UI and back-end, ingest settlement files and classify exceptions.
• Create payment analytics dashboards and reports for merchant back-office users.
• Translate business requirements into working solutions; mentor engineers; maintain docs and runbooks.
• Participate in code reviews and drive code quality across payment services.

Skills

Payments domain knowledge

C# / .NET

APIs & microservices

PSP integration

Data reporting UI

Data reconciliation

Tools

AWS

MongoDB

SQL

Elasticsearch

Git

Azure DevOps Pipelines

Docker

Terraform

Job description

Qu is seeking a Senior Software Engineer to own both payments integrations and the data platform that makes transactions visible and reconciled for merchants. You will work on a leading enterprise restaurant technology platform (POS, kiosks, digital ordering) within a scaled agile team distributed across geographies.

You’ll build payment integrations with PSPs, design reconciliation pipelines and dashboards, mentor engineers, and help drive high-quality code in a cloud-based, hybrid environment.