Support and extend the existing Perl-based payment gateway debugging production issues and adding features while migration is ongoing
Design, develop, and maintain modern server-side components in Python, ensuring high performance and scalability
Integrate third-party APIs and external payment services into both legacy and modern platform layers
Collaborate with multiple stakeholders across departments working in agile sprints
Maintain high code quality standards and contribute to a culture of continuous improvement
Work closely with DevOps on CI/CD pipelines, containerization, and cloud deployments

5+ years of backend engineering experience with strong Python mastery (AsyncIO and FastAPI preferred)
Experience with Perl (or eagerness to learn and work within Perl production code)
Solid experience integrating third-party APIs and understanding of webhooks, callbacks, and retry policies
Experience with CI/CD pipelines (GitLab preferred), Docker containerization, and familiarity with AWS (Lambda, cloud services)
Exposure to event-driven architectures (Kafka, message queues, etc.)
Advocate for clean code and able to explain the reasoning behind every line shipped
Interested in how a product works for the end-user and the business
Strong English communication skills—both written and verbal

Senior Backend Engineer, Python – Core Gateway

Key skills