Senior Payments Engineer (Fintech)

TL;DR

Senior Payments Engineer (Fintech): Building and scaling core acquiring and payment-processing services with an accent on authorization, settlement, and reconciliation. Focus on designing fault-tolerant distributed systems in Golang and leveraging AI tooling to accelerate development within a PCI DSS compliant environment.

Location: Must be based in Turkey (Remote)

Salary: $5,000–$9,500 per month

Company

hirify.global is a fintech company revolutionizing the shopping experience through interest-free installment plans and innovative payment solutions.

What you will do

• Design and build backend services in Golang for payment processors and card networks.
• Own end-to-end money-movement flows including authorization, settlement, and dispute handling.
• Develop idempotent, fault-tolerant, and auditable transaction processing systems.
• Operate within PCI DSS scope, ensuring secure handling of payment data.
• Instrument and monitor payment health to drive continuous performance improvements.
• Utilize AI tools like Claude to accelerate design, coding, and documentation.

Requirements

• 7+ years of backend or full-stack engineering experience in payments or fintech.
• Strong proficiency in Go or comparable experience in Python.
• Hands-on experience with payment processors, gateways, and acquiring systems.
• Experience with distributed architectures and queuing tools like Kafka, SQS, or RabbitMQ.
• Demonstrated, hands-on use of Claude or equivalent LLMs to enhance productivity.
• Must be based in Turkey.

Nice to have

• Experience with Adyen, Stripe, Marqeta, or Fiserv.
• Knowledge of PCI DSS, 3DS/SCA, and network tokenization.
• Experience with observability platforms like Prometheus, Datadog, or New Relic.
• DevOps experience with CI/CD pipelines and Kubernetes on AWS.

Culture & Benefits

• AI-first engineering culture that prioritizes speed and rigorous design.
• Focus on open-source technologies and building scalable solutions.
• Collaborative environment partnering with Product, Risk, and Compliance teams.
• Emphasis on high standards, calculated risk-taking, and direct communication.

Hiring process

• Wonderlic test (30-40 min) and recruiter interview.
• Coding assessment (~1.5 hours).
• Technical interviews with engineers and leadership.