
201 - 500 employees
Founded 2020
🎲 Gambling
🎮 Gaming
⚽ Sports
Gambling • Gaming • Sports
Underdog is a consumer-facing sports app and fantasy gaming platform that lets users make team and player picks, play daily fantasy-style contests, buy in to games, and win cash payouts. It operates nationwide via mobile apps and promotions, offering a variety of contest formats (classic pick'em, pick'em champions, drafts, streaks, team and player picks, and in-app card packs) and emphasizes quick withdrawals, large payouts, and responsible gaming. Underdog also provides event contracts through a CFTC-regulated marketplace (Aristotle Exchange / Underdog Exchange or UDX), indicating it offers regulated event-based trading products alongside its fantasy and betting-style games. The service includes age and state restrictions, promotional bonuses, and gaming support resources.
🔥 5 minutes ago
🇺🇸 United States – Remote
💵 $150k - $220k / year
⏰ Full Time
🟠 Senior
🧑💻 Full-stack Engineer
👻 Ghost score 0%
Where this job comes from
Posted on Underdog's careers page, not through a job board
First seen by Remote Rocketship 5 minutes ago

201 - 500 employees
Founded 2020
🎲 Gambling
🎮 Gaming
⚽ Sports
Gambling • Gaming • Sports
Underdog is a consumer-facing sports app and fantasy gaming platform that lets users make team and player picks, play daily fantasy-style contests, buy in to games, and win cash payouts. It operates nationwide via mobile apps and promotions, offering a variety of contest formats (classic pick'em, pick'em champions, drafts, streaks, team and player picks, and in-app card packs) and emphasizes quick withdrawals, large payouts, and responsible gaming. Underdog also provides event contracts through a CFTC-regulated marketplace (Aristotle Exchange / Underdog Exchange or UDX), indicating it offers regulated event-based trading products alongside its fantasy and betting-style games. The service includes age and state restrictions, promotional bonuses, and gaming support resources.
• Build and scale core parts of mobile and web apps in React Native across the full betting lifecycle • Investigate and resolve critical React Native client issues and create preventive guardrails • Lead design reviews across iOS, Android, and React Native clients • Partner with backend, product, and design on entry placement, confirmation, slip changes and errors, and bet history • Turn ambiguous cross-team goals into concrete plans with milestones and owners • Use product analytics, error dashboards, and session data to validate fixes and detect regressions • Coach engineers on design reasoning and ownership and create reusable patterns • Anticipate and mitigate risks in shared systems before customer or team impact
• 7+ years of professional software engineering experience, with meaningful time spent in React Native and a solid grasp of the native iOS/Android layers • Track record of solving cross-cutting or ambiguous problems spanning multiple services, teams, or platforms • Experience leading technical initiatives with measurable before/after impact • Ability to turn unclear, high-level goals into executable plans with milestones and owners • Collaborative, coaching mindset • Strong written and verbal communication • Experience with mobile app performance, testability, and shipping reliable features at scale • Bonus: background in sports, fantasy, or gaming • Bonus: experience with wagering, betting, or high-stakes transactional flows • Bonus: familiarity with Amplitude, Datadog, or similar client-side instrumentation and monitoring tools
• Unlimited PTO for full-time employees • 16 weeks of fully paid parental leave • Home office stipend • Virtual-first culture with in-person offsites, trainings, hackathons, and more a few times per year • 401k with up to 5% employer match • Company-paid health, dental, and vision plan options for employees and dependents • FSA • Local meetups and company-sponsored sports events • Claude and ChatGPT enterprise accounts • Target equity
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