Senior Backend Python Engineer (Core Gateway)

Stack

Responsibilities

• ▹Support and extend the existing Perl-based payment gateway, debugging production issues and adding features during the migration
• ▹Design, develop, and maintain modern server-side components in Python with high performance and scalability
• ▹Integrate third-party APIs and external payment services into both legacy and modern platform layers
• ▹Maintain clear English communication across stakeholders in agile sprints
• ▹Bring a product-focused mindset to understand business logic and user impact
• ▹Participate in code reviews and uphold high code quality standards
• ▹Work closely with DevOps on CI/CD pipelines, containerization, and cloud deployments

Requirements

• ▹5+ years of backend engineering experience with strong Python mastery (AsyncIO and FastAPI preferred)
• ▹Experience with Perl, or genuine willingness to learn and work within Perl production code
• ▹Solid experience integrating third-party APIs, webhooks, callbacks, and retry policies
• ▹Experience with CI/CD pipelines (GitLab preferred), Docker, and AWS (Lambda, cloud services)
• ▹Exposure to event-driven architectures (Kafka, message queues)
• ▹Strong written and verbal English communication skills

Soft skills

About the company

payabl. helps businesses grow through payments innovation and banking services; a licensed financial company with principal membership with card schemes, specializing in global payments and multi-currency banking.