Senior Python Engineer, Integration

Fliff is a multinational company pioneering the next generation of rewards-driven entertainment spanning sports, casino, predictions, and collectibles. It operates with a frictionless freemium architecture and has offices in Philadelphia, New York, Austin, and Sofia. The Integration team manages critical integrations with KYC providers, geolocation services, payment methods, and other external systems essential to product operation and user experience.

• At least 5+ years of development experience with Python as the primary language
• Strong experience with API and system integrations
• Proven experience integrating third-party APIs with understanding of webhooks, callbacks, idempotency, and failure handling; Payments and KYC integrations are a strong plus
• Experience with observability tools for monitoring and troubleshooting production integrations
• Strong fundamentals in algorithms, data structures, and concurrency
• Experience in designing highly loaded and scalable architecture
• Strong understanding of the full software development lifecycle from requirements to deployment and monitoring

Nice to have:

• Experience in early-stage startups and fast-paced environments
• Experience writing automated tests and defining test automation strategies
• Experience with observability tools such as Datadog, CloudWatch, Grafana
• Experience in sports/betting industries

• Take full ownership of backend features and improvements from design to production support
• Design, develop, and maintain scalable backend services using Python and Django
• Build and maintain integrations with external systems including KYC, geolocation, and payment partners
• Collaborate with product and engineering teams to scope and deliver new integrations
• Implement observability, including monitoring, logging, and alerting, across integration flows
• Write unit and integration tests to ensure reliability and improve test coverage
• Support production issues and participate in on-call rotations

Fliff is an equal-opportunity employer committed to creating an inclusive environment. Applicants should be cautious of fraud attempts; legitimate job opportunities are only available on the official career site. The company will never request payment or personal financial information during the application process.