Company Name: Sleeper

Job Details: $225-300k+,EquityKubernetesSQLAWSGCPPythonGraphQLJavaKafkaGoNode.jsREST,APIDockerRabbitMQSenior,and,Expert,levelRemote,from,USMore,information,about,location

Job Url: https://app.welcometothejungle.com/jobs/jdcogyld

Job Description: RoleWho you are7+ years of backend software engineering experience, including experience in staff-level or tech lead rolesProven ability to design and scale distributed systems that serve millions of users in real-time or gaming environmentsStrong proficiency in one or more backend languages (e.g., Go, Python, Node.js, Java), and an understanding of trade-offs between themDeep knowledge of databases (both SQL and NoSQL), caching strategies, and message queues (e.g., Kafka, RabbitMQ, Pub/Sub)Comfortable designing and maintaining RESTful and/or graphql APIs, data models, and internal toolingCloud experience (AWS, GCP, or similar), with familiarity with containers (Docker) and orchestration (Kubernetes a plus)Strong product mindset—you care about the why, not just the how, and you build with users in mindExcellent communication and collaboration skills. You elevate your teammates and enjoy mentoringBonus: Passion for sports, gaming, or building multiplayer or real-time systemsWhat the job involvesWe’re looking for a Staff Software Engineer - Backend to help us scale the core systems behind our fantasy sports and DFS (Daily Fantasy Sports) offeringsIn this role, you’ll drive architectural decisions, build critical backend services, and mentor fellow engineers as we scale to support tens of millions of passionate sports fansAs a senior technical leader, you’ll collaborate cross-functionally to bring innovative features to life—from real-time contest engines and game logic to personalized content and secure, seamless paymentsYou’ll be empowered to own major parts of the backend stack and help define what "great" looks like in terms of performance, scalability, and reliability at SleeperDesign and build core backend systems that power Sleeper's games and real-time user experiences—fantasy contests, Sleeper Picks, user profiles, leaderboards, and moreArchitect scalable, distributed systems capable of handling millions of concurrent users with low latency and high availabilityLead backend initiatives from concept to deployment, ensuring clean interfaces, well-documented services, and resilient infrastructureOptimize system performance and proactively address bottlenecks through monitoring, profiling, and capacity planningCollaborate cross-functionally with product, design, and frontend teams to deliver features that users loveMentor engineers, provide thoughtful code reviews, and shape backend engineering best practices and standardsDrive innovation, technical direction, and team culture as a key engineering voice at the leadership levelShare this jobReport a problem with this jobHide companyView 2 more jobs at SleeperCompanyCompany benefits401k and health insuranceUnlimited VacationsRegular virtual game-time with the team with company-sponsored snacksCompany-sponsored fantasy leagues with real prizesTeam outing every quarter and company retreat once a yearFunding (last 2 of 4 rounds)Sep 2021$40mSERIES CMay 2020$20mSERIES BTotal funding: $67.3mOur takeThe popularity of being able to create fantasy teams and enjoy watching sports virtually has taken socialising around sports to a virtual level. In fact, the fantasy sports market size is expected to reach $48.6 billion by 2027. Sleeper was initially an app on which users discussed fantasy sports, but in 2017, it began hosting free fantasy football leagues, competing with sites like Yahoo. Integrating social media and sports, the company is now known to be one of the best DFS communities to hang out on.Through substantial funding, Sleeper is expanding the game offerings on its platform and in 2022, release a new feature called Wallet that enables users to sync their preferred payment methods to the platform.There has been consistent growth for the platform since its founding and it has successfully attracted a loyal user base.StephCompany Specialist at Welcome to the Jungle