Web Developer, Casino
As a key member of the Casino Engagement team you will: Build front-end applications using modern JavaScript technologies (React, TypeScript). Partner with product and design to architect and ship polished customer-facing features. Continuously improve code quality by identifying technical debt, proposing solutions, and raising the bar for the whole team. Learn, mentor, and grow alongside teammates through code reviews, pair programming, and knowledge sharing. Participate in the design, architecture, and delivery of new features in a collaborative agile/scrum environment. Leverage observability and monitoring tools to diagnose issues and improve the user experience. Write thorough tests for every feature and bug fix. Testing is a first-class discipline on this team. Build performant, accessible web applications that work for everyone. Collaborate with QA to strengthen automated testing pipelines and CI/CD workflows. Incorporate AI-assisted development tools (e.g. GitHub Copilot, Claude) to accelerate delivery and maintain high code quality.
- Build front-end applications using modern JavaScript technologies (React, TypeScript).
- Partner with product and design to architect and ship polished customer-facing features.
- Continuously improve code quality by identifying technical debt, proposing solutions, and raising the bar for the whole team.
- Learn, mentor, and grow alongside teammates through code reviews, pair programming, and knowledge sharing.
- Participate in the design, architecture, and delivery of new features in a collaborative agile/scrum environment.
- Leverage observability and monitoring tools to diagnose issues and improve the user experience.
- Write thorough tests for every feature and bug fix.
- Build performant, accessible web applications that work for everyone.
- Collaborate with QA to strengthen automated testing pipelines and CI/CD workflows.
- Incorporate AI-assisted development tools (e.g. GitHub Copilot, Claude) to accelerate delivery and maintain high code quality.
- Proven proficiency in JavaScript, TypeScript, React, and core UX principles (required).
- 3+ years of hands on Web Development experience (required).
- A demonstrated foundation in computer science, with competencies in data structures, distributed systems, algorithms and software design (required).
- Passionate about clean code architecture and engineering craft (required).
- Experience building and consuming REST or GraphQL APIs with modern web frameworks (required).
- Experience with Git and GitHub or similar (required).
- Fluency with HTML, CSS, JavaScript, and TypeScript across the full browser environment (DOM, events, interfaces) (required).
- Comfortable digging into root causes and sharing what you learn with others (required).
- Comfortable working in the terminal (required).
- Proficiency within an editor of your choice (required).
- Experience with writing automated tests (Jest, Jasmine, Cypress, Playwright or equivalent) (required).
- Experience working with profiling tools (required).
- Knowledge and familiarity with caching strategies and tools (required).
- Experience consuming and integrating with third party APIs (required).
- A passion for sports and/or gaming is considered an asset (nice-to-have).
- Nice to have: experience with IoT or kiosks, Elixir, GraphQL APIs (Absinthe), schema stitching and subscriptions, GCP, Kubernetes, JavaScript SSR, open source contributions, startup experience (nice-to-have).
- Competitive compensation package.
- Fun, relaxed work environment.
- Education and conference reimbursements.
- Parental leave top up.
- Opportunities for career progression and mentoring others.
Penn Interactive is the online gaming arm of PENN Entertainment, one of the largest regional casino operators in the United States. Headquartered in Philadelphia, it runs PENN's digital sports betting and online casino products, including theScore Bet and the Hollywood Casino online brands. The business previously operated the ESPN Bet sportsbook under a partnership with ESPN, which ended in late 2025. Penn Interactive combines proprietary technology — including theScore media platform — with PENN's nationwide casino network across North America.