Fliff

python developer for social gaming

In short

Senior Python backend developer role at Fliff, a social gaming and rewards-driven entertainment platform (sports, casino, predictions, collectibles). The role focuses on building scalable Python/Django backend services and integrating third-party systems like KYC providers, geolocation services, and payment partners, with on-call production support. Requires 5+ years of Python development experience with strong API/system integration expertise. Office-based in Belgrade, full-time.

About the Company
Fliff operates a social gaming and rewards-driven entertainment platform spanning sports, casino, predictions, and collectibles. Its freemium architecture gives players access to interactive games and rewards.
Responsibilities
•Take full ownership of backend features and improvements, from design through implementation, deployment, and production support
•Design, develop, and maintain scalable, high-performance backend services using Python and Django
•Build and maintain integrations with external systems, including KYC providers, geolocation services, payment partners, and other third-party services
•Work with product and engineering teams to scope and deliver new integrations
•Implement monitoring, logging, and alerting across integration flows
•Write unit and integration tests to ensure reliability, prevent regressions, and improve test coverage and practices
•Support production issues and participate in on-call rotations
Requirements
•At least 5+ years of development experience, with Python as the primary language and strong experience in API and system integrations
•Proven experience integrating third-party APIs and a deep understanding of webhooks, callbacks, idempotency, and failure handling
•Experience with observability tools for monitoring and troubleshooting production integrations
•Strong fundamentals in algorithms, data structures, and concurrency
•Experience designing architecture for highly loaded, scalable solutions
•Strong understanding of the full software development lifecycle, from requirements analysis to deployment and production monitoring
•Willingness to participate in on-call rotations
Nice to Have
•Payments and KYC integrations experience
•Experience in early-stage startups and fast-paced engineering environments
•Writing automated tests and measuring test coverage
•Defining test automation strategies
•Datadog, CloudWatch, Grafana
•Sports or betting industry experience
Conditions
Not specified in the posting.

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