Senior Back End Engineer

Responsibilities

• Build and own backend services across Rails-based services and Go microservices
• Support the migration from a Rails monolith to a microservices architecture
• Power internal tooling APIs for real-time decisioning and risk management
• Lead the design and implementation of complex features end-to-end
• Drive system reliability by diagnosing performance bottlenecks and optimizing queries
• Propose and drive architectural decisions for team services
• Provide hands-on mentorship to Software Engineers through code reviews and pairing
• Collaborate cross-functionally with Product Managers and QA teams
• Participate in on-call rotations for production incidents

Requirements

• 5–8 years of professional software engineering experience
• Meaningful production experience in both Ruby on Rails and Go
• Experience with monolith-to-microservices migrations
• Experience designing and operating distributed systems or event-driven architectures
• Strong proficiency in Ruby on Rails and Go
• Solid PostgreSQL skills including schema design and query optimization
• Understanding of API design (REST and/or gRPC)
• Experience with asynchronous workflows, message queues, or event streaming
• Experience with Docker and Kubernetes
• Familiarity with CI/CD pipelines and observability practices
• Ability to work autonomously in a fully remote environment

Preferred Qualifications

• Hands-on experience with Pulsar, Kafka, or similar event-driven architectures
• Experience with NATS request/reply or JetStream patterns
• Experience in high-traffic, real-time systems (sports, gaming, fintech, or adtech)
• Familiarity with infrastructure tooling like Terraform, Kubernetes, or ArgoCD
• Experience in the daily fantasy sports or sports betting industry
• Experience leveraging AI-assisted development tools

Benefits

• Company-subsidized medical, dental, and vision plans
• 401(k) plan with company match
• Annual bonus
• Flexible PTO
• 16-week paid parental leave and disability benefits
• Workplace flexibility and modern work schedules
• Company equipment provided (Windows & Mac)

About the Company

PrizePicks is the fastest-growing sports company in North America and a leading platform for Daily Fantasy Sports, covering leagues like the NFL, NBA, and Esports.