Senior Backend Python Engineer (Core Gateway)

We're powering the growth of merchants by helping them take payments easily, securely and globally.

• 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 such as Kafka and message queues.
• Advocate for clean and intentional code with the ability to explain reasoning behind code.
• Strong English communication skills, both written and verbal.
• Interest in product functionality and business impact.

• Support and extend the existing Perl-based payment gateway by debugging production issues and adding features during migration.
• 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 effectively with multiple stakeholders across departments using strong English communication 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.

The role is available remote from Poland (Contractor arrangement) or onsite in Cyprus (employment arrangement). Benefits and contract type depend on location and will be discussed during the interview process.