Senior Software Engineer, iCasino
Penn Interactive is seeking a Senior Software Engineer to join the iCasino team. This role focuses on delivering a best-in-class online casino experience across platforms such as Hollywood Casino, theScore Casino, and theScore Bet Sportsbook & Casino.
The successful candidate will work on integrating third-party game providers and aggregators, managing real-money wagering flows, and developing tools to support casino operations and marketing stakeholders. The position requires a commitment to building highly reliable and scalable solutions within a collaborative agile environment.
- Design, scale, and performance-tune GraphQL APIs, low-latency gRPC services, and SQL queries powering the casino lobby, game launch, and real-money wagering flows.
- Own technical problems of the highest scope and complexity, drafting proposals and presenting them to leadership and partner teams for feedback.
- Design, architect, and deliver new features and game provider integrations end-to-end in a collaborative agile/scrum environment.
- Identify bottlenecks and areas of risk in production, and drive the changes that make the platform more scalable.
- Set up and refine monitoring and alerting in DataDog for the systems you own.
- Mentor engineers on the team and across teams that ship into the codebase, through specs, pairing, and code review.
- Perform other duties as required.
- Minimum of 5 years of experience in Software engineering (required)
- 2+ Years of experience building applications in Elixir (required)
- 2+ Years of experience designing and evolving GraphQL schemas (required)
- A solid foundation in computer science, with strong competencies in data structures, distributed systems, algorithms, and software design (required)
- Strong grasp of production systems at scale, and experience identifying areas of improvement in a production environment through load testing and tracing (required)
- Experience investigating and remediating production performance regressions, including CPU hotspots and latency regressions in high-throughput services (required)
- Experience with on-call rotations for a production service, including owning release cycles end-to-end (required)
- Passionate about clean code architecture and software craftsmanship (required)
- Excellent written and verbal communication skills, with a track record of authoring tech specs, runbooks, and cross-team design docs that stand up to scrutiny (required)
- A strong grasp of relational databases, including PostgreSQL and MySQL (required)
- Experience with Kubernetes and comfort operating services in a containerized environment (required)
- Comfortable working in the terminal, with Git and GitHub or similar, and in an editor of your choice (required)
- Experience with testing frameworks such as ExUnit, RSpec, Jest, pytest, or equivalent (required)
- Experience with background job processing (Oban, Exq, Sidekiq, Celery, Beanstalk) (required)
- Experience with asynchronous event handling infrastructure (Apache Kafka, RabbitMQ, AWS SQS/SNS, Google Cloud Pub/Sub) (required)
- Experience in iCasino, sports betting or another regulated real-money domain (nice-to-have)
- Familiarity with game provider and wallet integrations (nice-to-have)
- Hexagonal architecture (nice-to-have)
- Domain Driven Development (nice-to-have)
- Contribution to open source software (nice-to-have)
- Experience working at startups (nice-to-have)
- Passion for casino gaming, sports and/or esports (nice-to-have)
- Competitive compensation package
- Fun, relaxed work environment
- Education and conference reimbursements
- 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.