Fliff Inc Tech Stack

Social sports gaming platform with free-to-play and loyalty rewards

Entertainment Providers Philadelphia 51–200 employees Founded 2019 Privately Held

Fliff operates a social sports gaming platform using a modern mobile-first stack (React Native, iOS, Android) paired with a Python/Django backend and Kafka for event streaming. The company is scaling distributed infrastructure for millions of concurrent users during peak sports windows—a constraint visible in their backend projects (low-latency services, real-time systems) and pain points (scaling, observability). Engineering dominance (42 of 61 active roles) and adoption of Kubernetes signal infrastructure maturity paired with ongoing scale challenges.

Tech Stack 56 technologies

Core StackReact Native Redux Jest React Python Django Kafka Docker Excel iOS Android Xcode Android Studio TestFlight React Native Debugger React Redux Reanimated Detox React Navigation CSS OAuth 2.0 Twitter Meta Instagram Discord YouTube Microsoft Office Outlook Word PowerPoint+26 more

AdoptingKubernetes

What Fliff Inc Is Building

◆Challenges

Low-latency backend
Scaling backend for millions of users
Low-latency solutions
High-performance distributed backend systems
Tightening recruitment workflows
Scaling hiring processes
Serving millions of users
Support millions of users
Improving financial system efficiency
Increasing player lifetime value

▲Active Projects

Distributed backend services for millions of users
High-performance distributed backend systems
Evolving recruiting practices
Api and data pipeline development
System observability and monitoring
Critical backend infrastructure components
Community events and promotions
Always-on lifecycle campaigns
Accounts & payments vertical design
Real-time high-performance infrastructure for peak sports windows

Hiring Activity

Minimal60 roles · 7 in 30d

Department

Engineering

Marketing

Finance

Product

Legal

Ops

Seniority

Mid

Senior

Director

Junior

Lead

Staff

Notable leadership hires: Director of Compliance

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About Fliff Inc

Fliff is a social sports gaming platform headquartered in Philadelphia, founded in 2019. The product combines free-to-play gaming mechanics, fantasy sports elements, and social features, allowing sports fans to participate in promotional and loyalty-based games without real-money wagering. The platform serves millions of users with particular traffic spikes during major sporting events. Revenue comes from sponsorships, promotions, and in-game rewards tied to partner loyalty programs rather than direct betting. The company operates across 16 countries and maintains a lean organizational structure with strong engineering focus.

HeadquartersPhiladelphia

Company Size51–200 employees

Founded2019

Hiring MarketsUnited States, Bulgaria, Italy, Germany, Hungary, Slovenia, Lithuania, Latvia

Frequently Asked Questions

What tech stack does Fliff use?

Fliff uses React Native, iOS, and Android for mobile clients; Python and Django for backend services; Kafka for event streaming; and Docker for containerization. The stack reflects a mobile-first, real-time infrastructure approach.

Where is Fliff headquartered and hiring?

Fliff is headquartered in Philadelphia and hires across 16 countries: the United States, Bulgaria, Italy, Germany, Hungary, Slovenia, Lithuania, Latvia, Spain, Romania, Serbia, Netherlands, Czechia, Poland, Estonia, and Croatia.