Backend Developer

Job Description

Job Description

Unlock your potential with Quantum ePay® We're a full-service financial technology provider that helps business owners lower their costs, earn more money, and improve their quality of life.

We're looking for a skilled Backend Developer to design and implement technical solutions that integrate our chargeback solution with client systems end to end. You'll own backend architecture, develop APIs, and collaborate across teams to deliver scalable and reliable integrations that meet client needs.

ESSENTIAL DUTIES AND RESPONSIBILITIES

• Design, build, and maintain backend services and microservices that support data ingestion, normalization, and integration with various CRM, processor, and card network platforms
• Develop, document, and maintain RESTful APIs using OAuth 2.0 authorization and JSON-based payloads
• Implement and monitor streaming data pipelines using Kafka and Apache Spark for real-time enrichment and processing
• Collaborate with front-end developers, product managers, and QA to deliver secure, scalable, and performant end-to-end features
• Troubleshoot and resolve backend issues by analyzing logs, traces, and API interactions across PostgreSQL, Kafka, and microservices
• Participate in code reviews and champion secure development practices aligned with PCI DSS compliance
• Maintain observability through monitoring and alerting dashboards (Grafana, Loki, Airflow) and support the internal DevOps portal for job orchestration, service health checks, and custom workflow tracking
• Contribute to CI / CD pipeline enhancements using GitHub Actions and container-based workflows (Docker)

QUALIFICATIONS

WHY WORK HERE?

Medical, dental, vision, acupuncture and chiropractic