Sleeper Technologies, Inc. logo

Staff Software Engineer – Backend

Job Overview

Location

San Francisco

Job Type

Full-time

Category

Software Engineering

Date Posted

March 4, 2026

Full Job Description

📋 Description

  • As a Staff Software Engineer – Backend at Sleeper Technologies, Inc., you will be instrumental in scaling the foundational systems that power our rapidly growing fantasy sports and daily fantasy sports (DFS) platforms. This is a pivotal role where you will not only architect and build critical backend services but also serve as a technical leader, guiding architectural decisions and mentoring fellow engineers. Your contributions will directly impact the experience of tens of millions of passionate sports fans, ensuring our platform remains robust, performant, and reliable as we continue to expand.
  • You will be at the forefront of innovation, collaborating closely with product managers, designers, and frontend engineers to bring exciting new features to life. This includes developing sophisticated real-time contest engines, intricate game logic, personalized content delivery systems, and secure, seamless payment processing. Your expertise will be crucial in owning significant portions of our backend stack, setting the standard for excellence in performance, scalability, and availability.
  • A core responsibility will be the design and implementation of scalable, distributed backend systems engineered to handle millions of concurrent users with exceptionally low latency and high availability. You will be tasked with leading backend initiatives from their initial conceptualization through to successful deployment, ensuring that all services are well-documented, possess clean interfaces, and are supported by resilient infrastructure.
  • Proactive system optimization is key. You will continuously monitor system performance, identify and address potential bottlenecks through rigorous profiling and strategic capacity planning. This proactive approach ensures that Sleeper's backend infrastructure can consistently meet and exceed user expectations, even during peak demand.
  • You will play a vital role in shaping the future of our backend engineering practices. This involves providing thoughtful code reviews, actively mentoring junior and mid-level engineers, and contributing to the establishment and enforcement of best practices and coding standards across the team. Your leadership will foster a culture of technical excellence and continuous improvement.
  • As a key engineering voice at the leadership level, you will be empowered to drive innovation and influence the technical direction of the company. This includes exploring new technologies, evaluating architectural trade-offs, and contributing to the strategic vision for Sleeper's technology stack.
  • The role demands a deep understanding of backend development principles and a proven track record of building and scaling complex systems. You will be expected to tackle challenging technical problems, make sound architectural decisions, and contribute to a fast-paced, agile development environment. Your ability to translate user needs and business requirements into robust technical solutions will be paramount.
  • Sleeper is a product-driven company that values user experience above all else. As a Staff Engineer, you will embody this philosophy, ensuring that every technical decision contributes to a delightful, fast, and reliable product for our users. You will be a champion for quality, performance, and user satisfaction in all aspects of your work.
  • This position offers a unique opportunity to make a massive impact on a rapidly growing platform within the exciting intersection of sports, gaming, and technology. You will work with a lean, passionate, and product-obsessed team, backed by top-tier investors, and have the autonomy to drive significant outcomes.
  • You will be responsible for the end-to-end lifecycle of backend services, from initial design and development to deployment, monitoring, and ongoing maintenance. This includes ensuring high levels of test coverage, implementing robust error handling, and contributing to our CI/CD pipelines.
  • The role also involves staying abreast of emerging technologies and industry trends, evaluating their potential application to Sleeper's platform, and advocating for their adoption where appropriate to maintain our competitive edge.
  • You will be a critical part of a culture that values collaboration, humility, and a shared passion for sports and building great products. Your ability to communicate complex technical concepts clearly and effectively to both technical and non-technical stakeholders will be essential for success.

Skills & Technologies

Python
JavaScript
Java
Node.js
AWS
Backend
Senior
Remote
$225k-300k

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Sleeper Technologies, Inc. logo
Sleeper Technologies, Inc.
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About Sleeper Technologies, Inc.

Sleeper Technologies operates a fantasy sports platform that combines league management with chat-based social interaction. The company offers season-long and daily fantasy games for NFL, NBA, college football and basketball, and esports, letting commissioners customize scoring, rosters and payouts. Its mobile-first interface integrates real-time messaging, trading, news alerts, and voice or video calls within each league, aiming to keep friends engaged year-round. Sleeper monetizes through optional premium cosmetics, league upgrade fees and sportsbook integrations while remaining free for core play.

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