Senior Payments Engineer – Acquiring, Payment Processing

Sezzle

Senior Payments Engineer responsible for managing Sezzle's payment processing systems. Collaborating with product and other engineering teams to deliver scalable solutions.

Posted 6/22/2026full-timeRemote • 🇹🇷 TurkeySenior💰 $5,000 - $9,500 per monthWebsite

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Hard Skills

GolangPythonREST APIstransaction processingdistributed architecturecloud-based architecturetransactional outboxesKafkaSQSRabbitMQ

Tools & Technologies

payment processorspayment gatewaysacquiring systemsClaudeLLM

Industry Keywords

PCI DSSidempotentfault-tolerantauditablemoney-movement flows

Tech Stack

Tools & technologies

CloudGoKafkaPythonRabbitMQ

About the role

Key responsibilities & impact

Design and build backend services in Golang that integrate with payment processors
Own critical money-movement flows end to end
Build idempotent, fault-tolerant, auditable transaction processing within a distributed architecture
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 (Kafka, SQS, RabbitMQ)
Bachelor's degree in Computer Science, Engineering, or a related field
Demonstrated, hands-on use of Claude or an equivalent LLM

Benefits

Comp & perks

A culture driven by innovation and high standards
Work in a dynamic, tech-focused environment
Opportunities for personal growth and development