Software Engineer, Sportsbook Platform

Our stack is primarily Elixir and Phoenix, backed by PostgreSQL, Kafka, and a service mesh of gRPC and GraphQL endpoints running on Kubernetes. We operate at the scale and latency that live sports demand, which means we care deeply about production hygiene: load testing, tracing, structured monitoring, and clear on-call expectations. You will also spend meaningful time reviewing other teams' work in our codebase, defining the shape of upcoming work, and mentoring the engineers around you. We care about the craft as much as the ship. If you like distributed systems, functional programming, live production traffic, and a team that treats software quality as a first-class product concern, you will feel at home here. You will also spend meaningful time reviewing other teams' work in our codebase, defining the shape of upcoming work, and mentoring the engineers around you. We care about the craft as much as the ship. If you like distributed systems, functional programming, live production traffic, and a team that treats software quality as a first-class product concern, you will feel at home here. About the Work As a key member of the Sportsbook Platform team, you will:

• Develop, scale, and optimize the GraphQL APIs, gRPC endpoints, and SQL queries that power the marketplace
• 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 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
• Take on the Sportsbook Platform Support rotation, which owns release management and deployment management during its window
• 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 our codebase, through specs, pairing, and code review
• Other duties as required.

• You possess a minimum of 3 years of experience in Software engineering
• A solid foundation in computer science, with strong competencies in data structures, distributed systems, algorithms, and software design
• Strong grasp of production systems at scale, and experience identifying areas of improvement in a production environment through load testing and tracing
• Experience investigating and remediating production performance regressions, including CPU hotspots and latency regressions in high-throughput services
• Experience with on-call rotations for a production service, including owning release cycles end-to-end
• Passionate about clean code architecture and software craftsmanship
• 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
• Experience with modern web frameworks and API development (Phoenix, Ruby on Rails, Fast API, Laravel, Node)
• Experience designing and evolving GraphQL schemas for product surfaces used by multiple clients (iOS, Android, Web)
• Experience building and integrating multi-client / white-label platforms, including geo-based routing and per-client configuration
• A strong grasp of relational databases, including PostgreSQL and MySQL
• Experience with Kubernetes and comfort operating services in a containerized environment
• Comfortable working in the terminal, with Git and GitHub or similar, and in an editor of your choice
• Experience with testing frameworks such as ExUnit, RSpec, Jest, pytest, or equivalent
• Experience with background job processing (Oban, Exq, Sidekiq, Celery, Beanstalk)
• Experience with asynchronous event handling infrastructure (Apache Kafka, RabbitMQ, AWS SQS/SNS, Google Cloud Pub/Sub)
• NICE TO HAVE: building GraphQL APIs with Absinthe, hexagonal architecture, Domain Driven Development, contribution to open source software, experience working at startups, passion for sports and/or esports

Design, build, and scale GraphQL and gRPC APIs and SQL queries powering the sportsbook marketplace. Own end-to-end feature delivery, performance diagnostics and remediation, release and deployment windows, monitoring in DataDog, and on-call rotations. Mentor peers, draft technical proposals/specs, and improve platform scalability through load testing, tracing, and production hygiene. The summary above was generated by AI, * Competitive compensation package

• Fun, relaxed work environment
• Education and conference reimbursements.
• Opportunities for career progression and mentoring others #LI-REMOTE

Salary Range $115,000-$145,000 USD

PENN Entertainment, Inc. 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. 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 Hollywood Casino, theScore Bet Sportsbook, or theScore 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. 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. 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.