Site Reliability Engineer

About this role

Join Kalshi's engineering team to build infrastructure for a rapidly growing prediction market platform. As a Site Reliability Engineer, you'll design and maintain highly available systems, improve observability, and drive reliability practices across the organization while working on greenfield projects with significant ownership and impact.

What you'll do

• Define and measure key metrics to improve observability, reliability, and service availability
• Build automation and systems to reduce operational toil and burden
• Collaborate with infrastructure engineers to optimize cloud deployments and performance-tune systems
• Identify reliability problems across the stack and implement long-term software improvements
• Debug complex technical issues and participate in on-call rotations for incident response
• Review feature designs for security, scalability, and architectural soundness

What they're looking for

• Production service design and scaling
• System design and performance tuning
• Cloud infrastructure (Docker, Kubernetes, Terraform, EC2)
• Observability and monitoring
• High-quality coding and testing practices
• Debugging and troubleshooting
• Rust, Go, or similar languages (bonus)
• Datadog or similar monitoring tools (bonus)

Benefits

• Salary: $100,000–$250,000 annually plus equity
• Significant ownership of greenfield infrastructure projects
• Opportunity to mentor and influence engineering culture
• Fast-moving, small team environment with visible impact
• Work on financial systems at scale