Senior Full Stack Engineer, Client Platform

<div class="content-intro"><p><a href=" Entertainment, Inc.</a> is North America’s leading provider of integrated entertainment, sports content, and casino gaming experiences. From casinos and racetracks to online gaming, sports betting and entertainment content, we deliver the experiences people want, how and where they want them.</p>

<p>We’re always on the lookout for those who are passionate about creating and delivering cutting-edge online gaming and sports media products. Whether it’s through <a href=" Casino</a>, <a href=" Bet Sportsbook</a>, or <a href=" media app, we’re excited to push the boundaries of what’s possible. These state-of-the-art platforms are powered by proprietary in-house technology, a key component of PENN’s omnichannel gaming and entertainment strategy.</p>

<p>When you join PENN Entertainment’s digital team, you’ll not only work on these cutting-edge platforms through theScore and PENN Interactive, but you’ll also be part of a company that truly cares about your career growth. We’re committed to supporting you as you expand your skills and explore new opportunities.</p>

<p>With locations throughout North America, you can build a future at PENN Entertainment wherever you are. If you want to challenge conventions in gaming, media and entertainment, we want to talk to you.</p></div><p><strong><span data-contrast="auto">About the Team<br></span></strong><span data-contrast="auto">The Client Platform team's job is to make product teams fast. We own the shared component libraries and design system, the build and release tooling every engineer touches daily, and the performance, accessibility, and observability standards that hold across our client surfaces. Much of the work is internal tooling that keeps a large monorepo pleasant to work in. We partner closely with product teams to make the right thing the easy thing.</span> </p>

<p><span data-contrast="auto">The team also builds our server-driven UI service, a TypeScript GraphQL subgraph that lets product teams change what the iOS, Android, and web clients render without shipping an app release. The role spans both the monorepo and that service, so it is a genuine mix of front-end and backend GraphQL work.</span> <br><span data-ccp-props="{"201341983":0,"335559739":0,"335559740":276}"> <br></span><strong><span data-contrast="auto">About the Work</span></strong><span data-ccp-props="{"201341983":0,"335559739":0,"335559740":276}"> </span></p>

<ul>

<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1"><span data-contrast="auto">Design and evolve GraphQL schemas in a federated graph, including the server-driven UI contracts our mobile and web clients render.</span>

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<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Treat those schemas as a versioned contract shared with released mobile apps: classify breaking changes, coordinate migrations with the iOS, Android, and web leads, and keep generated client models in sync.</li>

<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Develop, scale, and optimize the GraphQL APIs, RPC endpoints, and SQL queries behind our web surfaces.</li>

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<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Build front-end applications and shared libraries with React and TypeScript.

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<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Build web applications that are fast and accessible to everyone.</li>

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<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Partner with product and design to architect and ship customer-facing features.</li>

<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Use observability tooling to diagnose issues and improve the experience for guests.

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<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Set up and refine monitoring and alerting in DataDog for the systems you own.</li>

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<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Improve code quality by finding technical debt, proposing fixes, and holding the standard for the whole team.</li>

<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Find bottlenecks and areas of risk in production, and drive the changes that make the platform scale.</li>

<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Learn from and mentor teammates through code review, pairing, and writing things down.</li>

<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Take part in the design, architecture, and delivery of new features in a collaborative agile team.</li>

<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Write thorough tests for every feature and bug fix. Testing is a first-class discipline on this team.</li>

<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Work with QA to strengthen automated testing pipelines and CI/CD workflows.</li>

<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Use Claude Code in daily development to move faster without lowering the bar.</li>

<li data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Other duties as required.<span data-ccp-props="{"201341983":0,"335559739":0,"335559740":276}"> </span></li>

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<p><span data-ccp-props="{"201341983":0,"335559739":0,"335559740":276}"> </span><strong><span data-contrast="auto">About You </span></strong><span data-ccp-props="{"201341983":0,"335559739":0,"335559740":276}"> </span></p>

<ul>

<li data-leveltext="" data-font="Symbol" data-listid="10" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1"><span data-contrast="auto">At least 5 years of experience in software engineering.</span></li>

<li data-leveltext="" data-font="Symbol" data-listid="10" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Strong JavaScript, TypeScript, and React, plus real instincts for UX.</li>