Senior Backend Engineer - Payments & Fraud (Remote)

Primer.io; South Africa; Remote; ZAR 1,000,000 - 1,400,000; Full time

Benefits offered by this job

Fully remote & globally distributed

Competitive equity options

Flexible holidays (25 days minimum)

Job summary

Primer is the unified infrastructure for global payments. We give finance and payments teams visibility and control to reduce complexity, improve performance, and capture more revenue — all from a single platform.

As a backend engineer on the Protection team, you will own backend systems end-to-end, shape scalable architecture, and collaborate with fraud vendors to automate disputes and risk signals for merchants worldwide.

Qualifications

• Experience owning backend systems end-to-end, from design to shipping and monitoring.
• Ability to design systems from scratch with strong architectural focus.
• Proven code-quality and maintainability mindset in complex domains.

Responsibilities

• Move across the backend and, where needed, support development of our new dashboard frontend
• Architect and build the automation merchants need to handle payment disputes at scale: notification, deadline tracking, evidence collection, responses
• Expand our dispute coverage from five PSPs to the rest of Primer's network
• Work directly with third-party fraud vendors to build a unified comparison and switching experience
• Design and ship the native rules and signals engine like velocity rules, blocklists, device fingerprinting
• Make early architecture calls - service boundaries, integration patterns, data model, that decide how well this automation scales as more merchants and PSPs come online
• Partner closely with the EM and Product to turn merchant pain into automation that ships

Skills

Backend ownership

System design

Architecture instincts

Code quality

Mentoring

Delivery focus

Tools

Webhook systems

Orchestration platforms

Job description

Primer is the unified infrastructure for global payments. We give finance and payments teams visibility and control to reduce complexity, improve performance, and capture more revenue — all from a single platform.

As a backend engineer on the Protection team, you will own backend systems end-to-end, shape scalable architecture, and collaborate with fraud vendors to automate disputes and risk signals for merchants worldwide.