Remote Senior Backend Engineer - Real-Time Sportsbook

penninteractive; United States; Remote; USD 145,000 - 193,000; Full time

Benefits offered by this job

Education reimbursement

Conference reimbursement

Career development

Job summary

penninteractive is seeking a senior backend engineer to build and operate scalable real-time APIs for sportsbook and casino experiences. You will own API design, performance tuning, and production operations while collaborating with mobile and web teams to keep features reliable under heavy, bursty traffic.

The role emphasizes leadership, end-to-end ownership, and hands-on use of AI coding agents in day-to-day development, with remote-friendly setup and opportunities to mentor others.

Qualifications

• 5+ years of software engineering experience, backend or API systems.
• 2+ years designing APIs used by multiple clients with versioning and backward compatibility.
• Experience building real-time features and operating production services, including on-call and end-to-end releases.
• Strong CS fundamentals: distributed systems, algorithms, data structures, software design.

Responsibilities

• Design, scale, and tune APIs and real-time delivery systems with versioned contracts.
• Plan API changes and migrations with iOS/Android teams.
• Diagnose production bottlenecks, improve monitoring, alerting, and tracing.
• Own features end-to-end, including client changes and cross-boundary debugging.
• Write tests, manage releases and on-call duties, document designs and procedures.
• Mentor engineering work, review AI agent outputs to production standards.

Skills

API design

Distributed systems

Performance analysis

AI coding agents

Technical writing

Tools

GraphQL

Elixir

Kubernetes

Relational databases

Job description

penninteractive is seeking a senior backend engineer to build and operate scalable real-time APIs for sportsbook and casino experiences. You will own API design, performance tuning, and production operations while collaborating with mobile and web teams to keep features reliable under heavy, bursty traffic.

The role emphasizes leadership, end-to-end ownership, and hands-on use of AI coding agents in day-to-day development, with remote-friendly setup and opportunities to mentor others.