Senior Backend Engineer, Python – Core Gateway

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payabl.

WebsiteLinkedInAll Job Openings

51 - 200 employees

💳 Fintech

🤝 B2B

💸 Finance

Fintech • B2B • Finance

payabl. is a fintech company that offers game-changing financial solutions designed to help businesses expand globally. Specializing in a wide range of payment products, payabl. provides services such as card acquiring, banking services, local payment methods, and POS terminals. Their easy-to-integrate payment technology includes features like smart fraud prevention and dedicated customer support, allowing businesses to process local and international payments with ease. Supported by industry experts, payabl. offers over 300 payment methods and cutting-edge fraud protection using AI and machine learning. The company is renowned for its commitment to transparency, real-time bespoke reporting, and personalized customer relationships.

📋 Description

• 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

🎯 Requirements

• 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

🏖️ Benefits

• Annual Learning Budget for professional development (eligible after probation) • Company celebrations • Opportunities to participate in international company events and initiatives