Fliff

Company Overview

Fliff is a social sports betting platform with promotional games and loyalty rewards. The company offers a mobile application on iOS and Android devices, and a web app. It uses two virtual currencies: Fliff Coins for recreational play and Fliff Cash for promotional games that offer prizes. Users can earn Fliff Cash through gameplay or by purchasing Fliff Coin packs. Fliff also features a loyalty rewards program where users earn Experience Points (XP) through challenges and referrals, redeemable for gift cards or Fliff Coins. The platform includes social features such as leaderboards and achievement badges. Fliff operates across most of the United States, with state-specific restrictions for sweepstakes promotions. The company launched Fliff Superstars, a daily fantasy product, and expanded its peer-to-peer DFS presence to California in early 2026. Fliff reported approximately 1 million monthly visits in August 2026 and generated an estimated $25.6 million in annual revenue as of 2025.

Culture

Fliff is a remote-first company with operations in Philadelphia, USA, and development in Sofia, Bulgaria. The company emphasizes a supportive, collaborative, and knowledge-driven workplace. Certain remote engineering roles require working-hour alignment with Central European Time (CET ±2 hours) to facilitate real-time collaboration with the Sofia-based team.

Technology and Engineering

Fliff utilizes technologies including DNSSEC, Mobile Non-Scalable Content, Cloudflare Hosting, Ubuntu, Amazon CloudFront, Amazon Elastic Load Balancing, Apple Mobile Web Clips Startup, CrUX Top 500k, AWS Cloudfront Ashburn VA Edge, and Unbounce. For backend systems, Fliff uses Python and Django. Other technologies used include Apache Kafka, distributed systems, Docker, and SQL databases such as PostgreSQL. Redis is used for caching and state management. The company uses CI/CD pipelines, test automation, and monitoring/logging tools like Prometheus and Grafana. For frontend development, React Native is used.

• Backend systems: Python, Django, Apache Kafka
• Databases: PostgreSQL, Redis
• Cloud: AWS (Amazon CloudFront, Amazon Elastic Load Balancing)
• DevOps: Docker, CI/CD pipelines, Prometheus, Grafana
• Frontend: React Native

Working Conditions

The company seeks engineers with over 5 years of professional Python backend development experience. Required skills include Django experience and production experience with Apache Kafka. Engineers are expected to take ownership of backend services from design through deployment and maintenance. Roles involve collaborating with product, frontend, and DevOps teams. Engineers lead junior engineers through code reviews, architectural discussions, and knowledge sharing. Participation in on-call rotations and supporting production issues is required. Strong problem-solving skills and comfort with code reviews are also noted.

Benefits and Perks

• Competitive compensation package
• Health benefits (medical, dental, vision)
• Generous parental leave
• Employee-sponsored 401(k)
• Unlimited/Flexible paid time off
• Work-from-home stipend of $500
• Equipment and accessories provided
• Opportunity for professional development