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Senior Payments Engineer – Acquiring & Payment Processing
SezzleSenior Payments Engineer at Sezzle owning and scaling backend services for payment processing. Collaborating with cross-functional teams to deliver scalable solutions in a fintech environment.
Tech Stack
Tools & technologiesCloudGoPython
About the role
Key responsibilities & impact- Design and build backend services in Golang
- Own critical money-movement flows end to end
- Build idempotent, fault-tolerant, auditable transaction processing
- Operate within PCI DSS scope
- Instrument and monitor payment health
Requirements
What you’ll need- 7+ years of backend or full-stack engineering experience
- Strong Go (preferred), or comparable experience in Python, building and serving REST APIs
- Hands-on experience integrating with payment processors, gateways, or acquiring systems
- Experience in distributed, cloud-based architectures using patterns like transactional outboxes or queuing tools
- Demonstrated, hands-on use of Claude or an equivalent LLM
Benefits
Comp & perks- Professional development opportunities
- Flexible working hours
ATS Keywords
✓ Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
GolangPythonREST APIstransaction processingcloud-based architecturestransactional outboxesqueuing toolspayment processorspayment gatewaysLLM