Fastest live scores, standings, and player updates across NFL, NBA, CBB, MLB, NHL, and WNBA. Backed by General Catalyst and a16z.
About the role
We're hiring Senior and Staff Backend Engineers for our fantasy sports product — season-long leagues, drafts, waivers, trades, matchups, live scoring, and the league chat that holds it all together, across NFL, NBA, and more. Fantasy is where Sleeper started, and it remains the core of the platform.
What they're looking for
- 5+ years of backend engineering. For Staff, 8+ years and a track record of owning the architecture of systems at this scale
- You've built and operated consumer products with millions of users, and you understand what your code does in production at that scale
- You've shipped features end to end — not only infrastructure
- Deep in distributed systems: data modeling, caching, queues, and the correctness questions that come with real-time fan-out
- Strong in at least one backend language — Elixir, Go, Java, Python, Rust, Node, or similar
- You can go deep on your own work: what you decided, what you'd do differently, and where your contribution ended and the team's began
More about this role
Sleeper is on a mission to connect people over sports through games and community. As one of the fastest-growing platforms in the fantasy sports and real-money gaming space, we’re redefining how sports fans engage—whether it’s through season-long leagues, pick’em contests, or real-time interactions with friends.
Our team is lean, passionate, and product-driven. We obsess over user experience and believe that building delightful, fast, and reliable products is the best way to grow. Backed by some of the most respected investors in Silicon Valley, including Andreessen Horowitz and General Catalyst, we're building the future of sports engagement.
We're hiring Senior and Staff Backend Engineers for our fantasy sports product — season-long leagues, drafts, waivers, trades, matchups, live scoring, and the league chat that holds it all together, across NFL, NBA, and more. Fantasy is where Sleeper started, and it remains the core of the platform.
The work is backend engineering at real scale on a calendar that doesn't move. Millions of users are active at once on game days, live scoring has to reach every roster quickly and correctly, and drafts run in real time. Traffic peaks hard, and...
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