Sleeper Tech Stack

Social fantasy sports platform connecting friends through real-time contests

Spectator Sports Las Vegas, Nevada 51–200 employees Founded 2014 Privately Held

Sleeper operates a mobile-first social sports platform where friends compete in fantasy contests together. The tech stack reveals a sophisticated real-time infrastructure: Kafka, RabbitMQ, and Pub/Sub for event streaming; GraphQL, Node.js, and Go for API layers; and Apache Spark + Airflow for data pipelines. Active projects around a real-time contest engine, risk profiling, and odds monitoring signal the company is scaling toward higher transaction volume and user concurrency—a shift from casual play toward more complex financial-grade operations.

Tech Stack 41 technologies

Core StackTableau Amplitude Figma React Native TypeScript JavaScript GraphQL Adobe Illustrator After Effects Python NetSuite Go Node.js Java Kafka RabbitMQ Apache Spark Apache Airflow Firebase Retool React Query React Navigation Reanimated Photoshop iOS Android X Pub/Sub Hive Appsmith+11 more

What Sleeper Is Building

◆Challenges

Large company size
Scaling core systems
Scaling platform for millions of users
Handling millions of concurrent users
Optimizing system performance
Crowded sports landscape
Risk and liability management
Real-time odds monitoring
Scaling risk and trading processes
Scaling impact in large teams

▲Active Projects

Real-time contest engine
Personalized content
Secure seamless payments
Major sports moments and seasonal opportunities
Fantasy contest backend
User risk profiling
Risk and trading automation
Research and innovation in risk management
Research synthesis
Engagement metrics monitoring

Hiring Activity

Accelerating10 roles · 7 in 30d

Department

Engineering

Marketing

Design

Data

Research

Seniority

Senior

Mid

Intern

Junior

Staff

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About Sleeper

Sleeper builds a social fantasy sports mobile app (iOS and Android via React Native) that lets friends create and compete in sports contests together. The product centers on real-time contest mechanics, personalized content delivery, and integrated payments. The company serves millions of concurrent users and is actively scaling its backend infrastructure to handle peak load, particularly around major sports moments. Engineering and design hiring dominates the active role mix, reflecting the operational intensity required to maintain uptime and user experience at scale.

HeadquartersLas Vegas, Nevada

Company Size51–200 employees

Founded2014

Hiring MarketsCanada, United States, Peru, Syria

Frequently Asked Questions

What tech stack does Sleeper use?

Frontend: React Native, TypeScript, React Query, and Reanimated on iOS/Android. Backend: Node.js, Go, GraphQL, and Kafka. Data: Apache Spark, Airflow, Hive, Pub/Sub, and RabbitMQ. Analytics: Amplitude and Tableau.

Where is Sleeper headquartered?

Las Vegas, Nevada. The company is hiring across the United States, Canada, Peru, and Syria.

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How this profile is built

Sleeper's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.